Introduction Die casting is a versatile process for producing engineered metal parts by forcing molten metal under high pressure into reusable steel molds. These molds, called dies, can be designed to produce complex shapes with a high degree of accuracy...
Advantages and Disadvantages of Die Casting
Advantages: Excellent dimensional accuracy (dependent on casting material, but typically 0.1 mm for the first 2.5 cm (0.005 in. for the first inch) and 0.02 mm for each additional centimeter (0.002 in. for each additional inch).Smooth cast surfaces...
Equipment of Die Casting
There are two basic types of die casting machines: hot-chamber machines (a.k.a. gooseneck machines) and cold-chamber machines. These are rated by how much clamping force they can apply. Typical ratings are between 400 and 4,000 short tons. Hot-chamber...
History and Process of Die Casting
Die casting is the process of forcing molten metal under high pressure into mold cavities (which are machined into dies). Most die castings are made from non-ferrous metals, specifically zinc, copper, aluminium, magnesium, lead, pewter and tin based...
Polyphenylethene
Polyphenylethene IPA (IUPAC Polyphenylethene) is an aromatic polymer made from the aromatic monomer styrene, a liquid hydrocarbon that is commercially manufactured from petroleum by the chemical industry. Polystyrene is a thermoplastic substance, normally...
Soal dan Jawaban UAS Karet dan Plastik
1. Natural polymers are available in nature. Could you write several examples of natural polymers and their applications (UAS no 1 090824)Jawab:Silk: is applied mainly for expensive textilesNatural rubber: is applied for many different industrial application...
Polyethylene
Polyethylene or polythene (IUPAC name poly(ethene)) is a thermoplastic commodity heavily used in consumer products (notably the plastic shopping bag). Over 60 million tons of the material are produced worldwide every year.DescriptionPolyethylene is a...
Natural Rubber
Natural rubber is an elastic hydrocarbon polymer that naturally occurs as a milky colloidal suspension, or latex, in the sap of some plants. It can also be synthesized. The entropy model of rubber was developed in 1934 by Werner Kuhn. The scientific...
