Compare and Contrast Essay - 1171 Words

The other wes Moore one name, Two Fates â€Å"Wes Moore, author of The Other Wes Moore One Name, Two Fates,† describes the difficult times in both boys lives. In many ways this novel is inspirational. Such as, how it shows the choices we make today, and how they affect us in the future. As, portrayed through both Wes Moore’s. What these boys went through at such young ages is truly heart wrenching. When comparing the lives of these two young men I find so many things that they have in common. Besides the obvious, the same name. Both boy’s were brought up in Baltimore, they were raised by single mothers, how both of there mothers worked, being members in crews, and having issues with the law. When you look at the individuals they will†¦show more content†¦Her parents were retired so they would help in getting the kids to school, and make sure they were home and feed. On the hand, the other Wes had a older brother that helped watched him, while his mothe r Mary had to work. But eventually was left to take care of himself. At age eight, Wes was getting himself off to school and coming home to were he would be alone unsupervised for hours, before his mother would get home. Besides the fact Wes had no father as a role model, he had no adult for a role model. Being members in different crews was apart of surviving. In the Bronx’s had changed significantly since Joy was a child. People were dealing crack from the sidewalks. The author Wes found himself making friends with people, that was apart of drug running. Reputation was important in this area, and you needed to hangout with people that so called respected people. The other Wes found himself being a lookout for the police. He became somewhat of a leader in his crew. This was just the being of his career in drug related activity. Having issues with the law, is what sets the two boys apart. The author Wes was caught drawing graffiti on a building wall, with one of his drug ru nning friend. He was put in cuffs and the put in the back of the squad car. His reaction: he was apologetic, he had tears running down his face, and he was upset at himself, for doing something that got him in trouble in the first place. Unlike, theShow MoreRelatedCompare and Contrast1441 Words   |  6 PagesThe Compare/ Contrast Essay First, let’s explain compare and contrast: When we compare, we show our readers a subjects similarities. When we contrast, we show our readers a subjects differences. Compare and Contrast essays are learning-process essays. You learn about your subject as you gather and organize information. This type of essay takes a bit of organization, and its this organizational process, this gathering of facts, that helps you learn as you go. You will create lists of qualitiesRead MoreCompare and Contrast1427 Words   |  6 PagesThe Compare/ Contrast Essay First, let’s explain compare and contrast: When we compare, we show our readers a subjects similarities. When we contrast, we show our readers a subjects differences. Compare and Contrast essays are learning-process essays. You learn about your subject as you gather and organize information. This type of essay takes a bit of organization, and its this organizational process, this gathering of facts, that helps you learn as you go. You will create listsRead MoreCompare and Contrast1582 Words   |  7 PagesRunning Head: COMPARE AND CONTRAST Compare and Contrast Self Administered Test Mary Coleman May 12, 2008 PSYU 565 Jeffrey A. Stone, PhD. Chapman University Compare and Contrast Self Administered Test The assignment for this week is to compare and contrast the results from three self administered tests we took in class. The tests I will compare and contrast are the 16 Personality Factors (16PF), the Myers Briggs Type Indicator (MBTI), and the Taylor-Johnson Temperament Analysis (T-JTA)Read MoreCompare-Contrast1087 Words   |  5 PagesCompare-Contrast This paper is on compare-contrast of two advertisements dealing with two beauty products. One will be targeted towards men, while the other will be targeted towards women. The two beauty products advertisements that will be compared and contrast are the Axe Body Spray advertisement (18-19) and the Victoria’s Secret fragrance mist advertisement (Bath and Body Works). Both advertisements use different marketing promotions technique to try to get the attention and win over theirRead Morecompare contrast1165 Words   |  5 Pageshe is more interested in men which leads readers to believe he has homosexual tendencies. After this Emily decides to kill Homer and thus resulting in her keeping his lifeless body in the room upstairs until the day she herself passes. When you compare the two stories they have a very similar tone. Though the locations are different they still connect through the same tone. Phoenix Jackson is on a trail walking to town to buy some medicine for her Grandson, while Miss Emily is locked up in her houseRead MoreCompare Contrast1072 Words   |  5 PagesCompare and Contrast Christopher Smith University of Phoenix COM-170 COMPOSITION AND COMMUNICATION I January 14, 2014 Regina Vega Compare and Contrast Growing up, there are countless young boys, who have the dream of someday being a professional football or baseball player. Going outside and letting the imagination of being on the big stage and making the final pitch to win the World Series or the final Hail Mary throw to win the SuperRead MoreCompare and Contrast778 Words   |  4 PagesCompare and contrast the way Seamus Heaney and at least one other poet describe their childhood experiences. The two poets I am writing about are Seamus Heaney and D H Laurence. The two poems by Seamus Heaney I will be writing about are death of a naturalist and blackberry picking. The poem by D H Laurence I will be writing about is discord in childhood. Death of a naturalist Death of a naturalist is about Seamus Heaney as a child going to this pond where every year he went to collect frogspawnRead MoreCompare and Contrast1122 Words   |  5 PagesCompare and Contrast Essay In today’s society the majority of the crimes are still being committed by people who have possessed a firearm that has been obtained illegally or without proper permits. That being said there has been a strong push for gun control because of the rise of shootings involving a large group of people such as the Columbine massacre, Virginia Tech shooting and latest Aurora movie theater shooting involving people who have purchased firearms legally. Gun control laws in theRead MoreCompare and Contrast2738 Words   |  11 PagesCompare and Contrast Economic Market Systems In differentiating between market structures one has to compare and contrast public goods, private goods, common resources, and natural monopolies. All of these are major factors that need to be considered. Public goods are those goods in which all of society benefit from and are equally shared among everyone within. These types of goods can be consumed simultaneously by several individuals without diminishing the value of consumption to any individualRead MoreCompare and Contrast2751 Words   |  12 PagesCompare and Contrast Economic Market Systems In differentiating between market structures one has to compare and contrast public goods, private goods, common resources, and natural monopolies. All of these are major factors that need to be considered. Public goods are those goods in which all of society benefit from and are equally shared among everyone within. These types of goods can be consumed simultaneously by several individuals without diminishing the value of consumption to any individual

Art as Expression Essay - 1822 Words

Artists are central to cultural, political and social discourses in the world. They are here not only to inspire us, but to provoke us as well. Four artists that broke social, political and cultural barriers were, Rene Magritte, John Heartfield Jackson Pollock and Otto Dix. While the artists were involved in different movements, each one made revolutionary statements with their works. Artists have a responsibility to use their works as a weapon to the status quo and to break these cultural and social barriers. Rene Magritte and John Heartfield were important figures to the Surrealist movement. Surrealism was a movement that developed after World War II and as a result, society was requesting art that was of the ‘norm’ to give the world a†¦show more content†¦The viewer is drawn in through curiosity, because to them, this is only a pipe. It is a paradoxical statement that forces the viewer to reassess if this is a painting of a pipe. When Magritte was asked why he added that inscription, he replied that it is not a pipe and therefore should not lie. He then said, â€Å"If it were a pipe, they should try to fill it with tobacco† (Foster, Volume 1). Magritte was interested in the natural tendency of the mind to label everything we see and how we lack to find a deeper meaning. Through his paintings of arbitrary every day objects to invoke curiosity, hoping the viewer will see past the image and find the meaning. He wants to show the viewer that language and the vis ual can cheat us, even manipulate our way of thinking. In 1933, Magritte painted â€Å"The Human Condition† (Foster, Volume 1).. The painting depicts what appears to be a window, with curtains and a scenic landscape through the window. As the viewer observes the painting more closely, they see that there are legs of an easel under the window. The viewer observes that this is a painting of what appears to be outside the window, or is it? We are forced to trust the artist and believe outside the window is this landscape, when it could really be an urban or rainy scene. Magritte is trying to tell the viewers that they tend to believe the artist, because they are the artists, when they should ask questions about the representation and interpretation. TheShow MoreRelatedThe Expression Of The Arts1655 Words   |  7 Pages The Expression of the Arts The Allegory of Music a painting by Laurent de la Hyre, a French painter from Paris that was born in 1606 and died in 1656 in Paris. He painted the Allegory of Music in 1649 when he was about 43 years of age. La Hyre painted this painting from oil on canvas and made the size of the painting approximately 41 5/8 x 56 3/4 in, we can observe that the amount of detail La Hyre add to his painting, he went from darks to lights. ThisRead MoreArt Is an Expression1389 Words   |  6 PagesArt History 6A 19 November 2011 Triumph! Art is an expression that we as humans do as a way to express and communicate with others. Through art every painting/sculpture has an intended purpose and message/story to convey. No matter what race, gender, or class, one can understand what message is being shared or find an entirely opposite interpretation other than what the artist intended. It can relate to the individual on a personal level, and that’s the beauty of art. In this essay I will beRead MoreArt Appreciation: Visual Art Expressions1874 Words   |  8 PagesRunning Head: Art Appreciation Essay Art Appreciation Essays The Visual Art Main forms of Visual Art expressions in Surrealism, the movement of 20th century Visual Art can be expressed in various forms. While most forms were discovered before the 20th century, the most prominent ones in the 20th century were painting, films and photography. These three forms of visual art expressions were not only the prominent forms in the 20th century but also main forms in surrealism, a culturally artisticRead MoreArt Is A Form Of Human Expression1082 Words   |  5 PagesDefining art is like defining the word love or beauty. It’s a subject up for interpretation, the meaning is far too vast to describe. I can only give you my elucidation of art. I believe art is a form of human expression. Art is not only displayed in the craftsmanship of a clay vase, within the brush strokes of a painting or the feathery flicks of a pencil. Many believe art can be poured out from any human being. You can see art within the determination of a football player to complete a touchdownRead MoreArt As A Form Of Self Expression1378 Words   |  6 PagesArt can be a form of self-expression and a way to communicate ideas and thoughts with other people. Each time when an art work is being viewed, a resonance between the art itself the viewer is created. Art allows the artists to express themselves and communicate with the world through their own imaginations and crafts. Artists has their own styles and they often use art crafts to blend colors to create incredible visual effects. Art is not always easy to understand. It can be a very literal representationRead MoreEarly Expression Of Religious Art1597 Words   |  7 PagesRoger Turner HUM 220 OM1 14 September 2015 Early Expression of Religious Art found in China, Africa and Europe AFRICA Artwork from Africa dates back to prehistoric times. Early forms of painting found in Africa are cave paintings showing men and animals on the walls. The practice of representing life with simple animal and human figures is universal in all early civilizations. The Native African Religions were monotheistic, one God. The African believe that this God was a far off God. People wouldRead MoreThe Beauty Of Art And Human Expression1328 Words   |  6 PagesWhat is art? As a child most of us are taught to believe that anything can be art. That the beauty of art and human expression is in the eye of the beholder. As we grow up we begin to understand that art is more than a bunch of cluttered finger-painted fingerprint Thanksgiving turkeys hanging on the fridge or macaroni picture frames. We begin to understand that art in our native cultures has many functions. Art serves as an expressive outlet for individuals to use as means to convey symbolism oftenRead MoreEssay on What Is The Expression Theory Of Art1484 Words   |  6 Pages Art has evolved and regenerated itself many times during our human existence. These differences are defined through changes in styles under various theories. During the nineteenth and early twentieth century, a style known as Expressionism became popular. During this movement the artists were trying to use their artwork as a tool of expression toward life. It was mainly dominant in the nonrepresentational arts, such as abstract visual arts and music. It also was probably one of the most difficultRead MoreArt As A Physical Form Of Creative Expression798 Words   |  4 PagesArt is a physical form of creative expression in one’s unique innovative usage of resources. This procedure can be looked upon in various ways. While art may come in numerous arrangements by articulating its autonomous purpose, as it has been understood that, individuals create art to capture the attention of the audience, to make them think the tenacity behind its creation. Besides, in today’s socie ty, art serves as a momentum. It is being created to symbolize entities and philosophies from theRead MoreFrench Baroque Art As An Expression Of Absolutism872 Words   |  4 PagesFrench baroque art is sometimes regarded as an expression of absolutism because Louis XIV used his power and control over art and the artistic freedom of the people to use for his own personal gains. â€Å"Louis XIV especially manipulated art to serve as propaganda for his absolutist policies†(738). Art was obviously popular at the time and he knew art would be the best way to â€Å"convey the majesty and strength of the monarchy†(738). An example of the control he was trying to enforce is shown in Le Brun’s

Dax Cowart free essay sample

In 1973, Dax Cowart and his father went to view some property near their Texas home. They parked their car in a dry creek bed. This was not uncommon as, in parts of the desert areas in Texas, there aren’t roads, or only some dirt roads. After surveying the land, the men returned to their vehicle. They were unable to get their vehicle started so they started working on its spark plugs. As chance would have it, under the creek bed was a faulty gas line. A spark from the accelerator resulted in an explosion that left Dax Cowart’s father dead. Sixty-seven per cent of Dax’s body sustained second- and third-degree burns. Prior to this he was a healthy young jet pilot and amateur rodeo performer. Crawling from the scene of the accident he was, by chance, seen by a ranger. He begged him to shoot him. When emergency paramedics arrived he again made this request. We will write a custom essay sample on Dax Cowart or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Dax’s prognosis for survival was approximately 20%, but his potential quality of life was deeply compromised. He repeatedly requested to die and these requests were all denied. He unsuccessfully attempted suicide by, for example, trying to crawl out of his hospital bed in an attempt to throw himself down the staircase. He was grossly infected by the time he left the hospital and hoped that he would die from sepsis. He didn’t. Against his will, he underwent 232 days of treatment in Parkland Memorial Hospital in Dallas. The types of treatment available at that time we might consider as quite â€Å"barbaric†. Immersion in tanks of saline, continuous debridement and medications now considered inappropriate were then the best known way to manage such extensive burn injuries. Also, at that time, there was a great fear that hospitals might inadvertently be producing â€Å"drug addicts†, so analgesia was kept at a minimum. At the time of his hospital admission, Dax was in a critical condition and his mother was appointed as his proxy decision maker. So her wishes concerning his care were honored. Dax’s mother held strong religious beliefs concerning life’s beginning and end solely to be the will of God. So to even consider her son’s request to die was an enigma to her. Later, and despite the fact that he was deemed competent, his repeated refusal of treatment and requests to die were consistently declined. The accident left him blind and gravely disfigured, with only partial use of his fingers. He later became a millionaire as a result of an out-of-court settlement with the gas company. Dax graduated from law school in 1986. He also became a regular speaker for the Society for the Right to Die. His argument remains that his physicians had been morally wrong to treat him against his wishes. He maintains that he should have been accorded the right to die.

Lost Foam Casting free essay sample

The lost foam casting process offers several advantages over conventional sand casting processes, such as simplified production techniques and reduced environmental waste due to binder system emissions and sand disposal. The process is well-suited for castings with complex geometries, tight tolerances, and smooth as-cast surface finish requirements. When the castings are designed to fully exploit these advantages, cleaning and machining times are dramatically reduced if not completely eliminated. Therefore, the lost foam casting process is viewed as a value-added process rather than a substitute for sand casting. Lost foam castings are produced by pouring molten metal into a foam pattern contained in a flask filled with loose sand that is compacted through vibration. Generally speaking, a foam pattern is coated with a refractory slurry and dried before being placed in the flask and surrounded by large grain fineness sand. The foam pattern degrades immediately after molten metal is introduced, leaving a casting that duplicates all features of the foam pattern. We will write a custom essay sample on Lost Foam Casting or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The degradation products are vented into the loose sand. In lost foam casting process, mold filling, thermal transport, and solidification are strongly influenced by the foam pattern degradation. There are three phenomena which are inherent in lost foam casting process: slow molten metal flow, reducing atmosphere, and degradation products. The first and second phenomena help reduce oxides or slag defects. The last one, however, may become casting defects if they remain in the cast parts. To improve lost foam casting design, it is ssential to understand the interactions between the foam pattern and molten metal as well as the displacement of degradation products. History The first patent for an evaporative-pattern casting process was filed in April 1956, by H. F. Shroyer. He patented the use of foam patterns embedded in traditional green sand for metal casting. In his patent, a pattern was machined from a block of expanded polystyrene (EPS), and supported by bonded sand during pouring . This process is now known as the full mold process. In 1964, M. C. Flemmings used unbonded sand for the process. The first North American foundry to use evaporative-pattern casting was the Robinson Foundry at Alexander City, Alabama. General motors first product using these processes was the 4. 3L, V-6 diesel cylinder head, which were made in 1981 at Massena, New York. A study found in 1997 that evaporative-pattern casting processes accounted for approximately 140,000 tons of aluminum casting in the United States. The same survey forecast that evaporative-pattern casting processes would account for 29% of the aluminum, and 14% of the ferrous casting markets in the near future. Definition Definition| A casting process whereby the pettern is made of polystyrene foam and is vaporized when the mold is fill with molten metal| Lost form consist of first making a foam pattern having the geometry of the desire finish metal| Expanded polystyrene casting use a mold or sand park around a polystyrene pattern that vapourizes when the molten metal is poured into the mold| Evaporating pattern casting (lost foam) : this process is also know as lost pattern casting under a trade name â€Å"full mold process†, it use a polystyrene pattern which evaporate upon contact with molten metal to form a cavity for the casting| Lost foam casting, where the mould cavity is filled with polystyrene foam (the ‘full mould’ process) , is a special case. | What is â€Å"Lost Foam†? The Lost Foam casting process originated in 1958 when H. F. Shroyer was granted a patent for a cavity-less casting method, using a polystyrene foam pattern embedded in traditional green sand. The polystyrene foam pattern left in the sand is decomposed by the poured molten metal. The metal replaces the foam pattern, exactly duplicating all of the features of the original pattern. Like other investment casting methods, this requires that a pattern be produced for every casting poured because it is evaporated (â€Å"lost†) in the process. Schematic of lost for casting Process The essential steps of the lost foam casting procedure are: 1) The execution of patterns, 2) Execution of moulds 3) casting the alloy. Execution of Patterns: A pattern is made from  polystyrene foam (Expanded Polysterene), which can be done many different. What is Expanded Polystyrene? Expanded Polystyrene in its broadest sense is a rigid cellular plastic which is found in a multitude of shapes and applications. Raw Material Manufacturing: Expanded polystyrene (EPS) is the most commonly used foam pattern, it can be produced by bead pre-expansion into polystyrene (PS) beads that are ready for moulding. PS precursors are formed from ethyl benzene through an aluminum catalyst with benzene and ethylene obtained from crude oil and natural gas [Shivkumar, 1994]. Ethyl benzene is then converted to styrene at high temperature with nitrogen gas and iron catalysts. It forms polystyrene when exposed to a peroxide catalyst and polymerized in a water solution [Goria et al. , 1986]. These unexpanded beads have a density of 600 g/l (38 pounds per cubic feet (pcf)) and they are expanded 20~50 times with heat at 100 oC until the desired density is reached [Kanicki, 1985]. Polystyrene (PS) MOLECULAR FORMULA: The C=C double bond in each monomer is transformed into a C-C single bond in the polymer. | Properties: ease of forming, clarity, low heat transfer, good thermal insulation. Density: 1. 03-1. 06 g/ccStatistic: In 1999 PS usage as a plastic bottle resin was essentially nil. | Description: Polystyrene can be made into rigid or foamed products. It has a relatively low melting point. Packaging applications: Plates, cups, cutlery, meat trays, egg cartons, carry-out containers, aspirin bottles, compact disc jackets Recycled products: Thermal insulation, light switch plates, egg cartons, vents, rulers, foam packing, carry-out containers Raw Material Manufacturing: Expanded Polystyrene (foam)  is obtained from expandable polystyrene (beads), which is a rigid cellular plastic which contains an expansion agent. Expandable polystyrene is therefore obtained from oil as can be seen from the diagram. The EPS Manufacturing Process is inextricably linked with the process described in the last section, which brought us from the oil well to expandable polystyrene, now we will see what happens in the transformation process that leads us to Expanded Polystyrene foam parts. We have seen that the raw material is obtained through a chemical process. The next process involves the use of physics and the conversion process is carried out in three stages. 1st stage   PRE-EXPANSION: The raw material (beads)  is heated in special machines called pre-expanders with steam at temperatures of approximately 215-f. The density of the material falls from 40lbs/cu ft to values of usually between 1 ~ 2lbs/cu ft. During the process of pre-expansion the raw materials hard beads turns into cellular (foam) plastic beads with small closed cells that hold air in their interior. 2nd stage   INTERMEDIATE MATURING AND STABILIZATION: On cooling, the recently expanded particles form a vacuum in their interior and this must be compensated for by air diffusion. This is how the beads achieve greater mechanical elasticity and improve expansion capacity, something very useful in the following transformation stage. This process is carried out during the materials intermediate maturing in aerated silos or mesh bags. The beads are dried at the same time. 3rd stage   EXPANSION AND FINAL MOLDING: During this stage the stabilized pre-expanded beads are transported to molds where they are again subjected to steam so that the beads bind together. In this way large blocks are obtained block molding   (that are later sectioned to the required shape like boards, panels, cylinders etc. ) or products in their final finished shape shape molding. Execution of moulds and casting alloy The basic steps to the process include: A foam pattern and gating system are made using a foam molding press * The foam pattern and the gating system are glued together to form a cluster of patterns * The cluster is coated with a permeable refractory coating and dried unde r controlled conditions * The dried, coated cluster is invested in a foundry flask with loose, unbonded sand that is vibrated to provide tight compaction * The molten metal is poured on to the top of the gating system which directs the metal throughout the cluster and replaces the foam gating and patterns * The remaining operations such as, shakeout, cut-off, grinding, heat treat, etc. are straightforward and similar to other casting processes. The series and major steps in lost foam casting (LFC) What metals can be poured in the Lost Foam process? Generally, all ferrous and non-ferrous materials can be successfully cast using the Lost Foam process. Because the foam pattern and gating system must be decomposed to produce a casting, metal pouring temperatures above 1000 °F are usually required. Lower temperature metals can be poured, but part size is limited. In addition, very low carbon ferrous castings will require special processing. What size range of parts can be produced by the Lost Foam process? Lost Foam castings can be produced in most all metals from a fraction of a pound up to thousands of pounds. Slightly more advanced techniques are used for very large castings. What type of tooling is required and at what cost? Typically, tooling is composed of a split-cavity machined aluminum die that is the negative mold from which the foam pattern is produced. The tooling is highly specialized and must be constructed by experienced tooling manufacturers familiar with the requirements of the foam molders and foundries. Most tooling for Lost Foam patterns will compare favorably with permanent and die cast tooling. Prototype and simple tools may be in the $3000-5000 range while high-end tooling for complex or very large parts can be in the several hundred thousand dollar range. As a result of the materials used and the process stresses, Lost Foam tools can be expected to have 3 to 4 times the cycle life of permanent mold or die casting tools. What lead times can be expected when ordering a Lost Foam casting? As with all processes, lead times vary greatly depending on part complexity. Generally, 8 to 16 weeks is typical for completed tooling and first castings produced. After casting approval, 6 to 12 weeks is typical for production run startup. Rapid prototyping methods can produce castings in as little as 2 to 3 weeks. What size range of parts can be produced by the Lost Foam process? Lost Foam castings can be produced in most all metals from a fraction of a pound up to thousands of pounds. Slightly more advanced echniques are used for very large castings. What is the cost of using the Lost Foam process? Lost Foam castings are generally more expensive than forged parts, or parts made by other casting processes. The value inherent in the Lost Foam process v ersus other processes is seen in tighter tolerances, weight reduction and as-cast features which all results in less machining and cleanup time. Many castings that require milling, turning, drilling and grinding can be made in the Lost Foam process with only . 020† . 030† of machine stock. It is imperative that the features to be cast are discussed by all parties to determine the net finished product cost. What quantities need to be made to make the Lost Foam process practical? The answer, simply, is not as many as you would think. Tooling amortization is a key factor in this determination. Potential overall savings for your application will aid in your decision. Generally, 500-1000 pieces per year is the minimum production run to be economical. Prototyping runs, however, may be as few as 3-5 pieces for Fabricated Foam patterns or 20-100 pieces for Quick-Cut CNC machined aluminum tooling. Application Lost foam casting  is used mostly for automotive applications. Cast iron, aluminum alloys, steels, nickel and in some cases stainless steel and copper alloys are cast in this process. The flexibility of LFC is useful in making complicated casting assemblies for automotive and other metal cast like cylinder heads, weldments, pump housing, Manifolds for automobile, machine bases, automobile-body-dies, brake component. etc. This simple and inexpensive method is used in hobby foundry work. Examples of product produce from lost foam casting http://www. glmmarine. com/ManifoldArticle. html Superior Marine Manifolds Agricultural Equipment Part / Farm Machinery Part Product Description Detail Feature: Product Name: Agricultural equipment part / Farm machinery part   Materials: Grey iron, Ductile Iron, High Chrome iron, resistent ironcarbon steels, alloy steels, stainless steels, High Manganese steel   Items: FOB NingBo or Shanghai Place of Origin: Ningbo, China Software for specification drawings: PDF, Auto CAD, Solid work, JPG, ProE   Main production equipments: Wax injection, CNC-machine, machine-center, Heat treatment Furnace lost foam casting for yacht gas piping Specifications 1). lost foam casting 2). reliable product quality 3). on time delivery 4). excellent after-sale service 5). 3D design It is designed for the yacht or the ships gas exhaust piping. Materials: pig iron 250 Surface treatment: galvanizing, and spray-paint Weight: 19. 5 KG Color: black Process: lost foam casting Dimensions:360mm*167mm*102mm Certificate: ISO9001:2000 Advantages * Foam is to carve glue and manipulate Can be used for precision castings of ferrous and non-ferrous metals of any size. * Fewer steps are involved in lost foam casting compared to sand casting. * Core making is eliminated. * Binders or other additives and related mixing processes are eliminated. * High dimensional accuracy can be achieved and thin sections can be cast (i. e. 3 mm). * There is lower capital investment. * The flasks used are less expensive and easier to use because they are in one piece. * The need for skilled labor is reduced. * Multiple castings can be combined in one mould to increase pouring efficiency. * Lower operating costs can be achieved for appropriate castings. Complex castings, particularly internal sections, which require high dimensional accuracy and have thin sections, can be produced very cost effectively in comparison with to conventional sand moulding processes. * Fettling and machining is minimized due to high dimensional accuracy and the absence of parting lines or core fins. * The shakeout process is simplified and does not require the heavy machinery required for bonded sand systems. * High levels of sand reuse are possible. As little as 1-2% of the sand is lost as a result of spills. Periodically a portion of sand may need to be removed or reclaimed to avoid the build-up of styrene. * Complex components can be formed where other casting processes would require multiple components to be assembled. Excellent dimensional tolerances for precision casting. * Lower production cost than traditional Green Sand casting. * Castings can be made from 1 pound up to thousands of pounds with no size limitations. * Lost Foam is an environmental ly friendly process. * The sand is un-bonded and can be recovered and re-used at a low cost. * There is lower capital investment. Disadvantages * pattern costs can be high for low volume application * patterns are easily damaged or distorted due to their low strength. If a die is used to create the patterns there is a large initial cost * The pattern coating process is time-consuming, and pattern handling requires great care. Good process control is required as a scrapped casting means replacement not only of the mold but the pattern as well. What type of tooling is required and at what cost? Typically, tooling is composed of a split-cavity machined aluminum die that is the negative mold from which the foam pattern is produced. The tooling is highly specialized and must be constructed by experienced tooling manufacturers familiar with the requirements of the foam molders and foundries. Most tooling for Lost Foam patterns will compare favorably with permanent and die cast tooling. Pr ototype and simple tools may be in the $3000-5000 range while high-end tooling for complex or very large parts can be in the several hundred thousand dollar range.