1.铸铝的强度影响：材质（不同的材质的铝合金力学性能各不一样） 2.铸造工艺对铝合金影响也比较大,在铸态情况下大约为：压铸的大于低压铸造大于金属型的大于砂铸的. 3.热处理对铸造铝合金机械性能有很大的改变：一些铝合金可以通过做固熔处理或人工时效来改变,具体方法得参照相关的技术资料,主要有T1T2T3TT4T5T6
We are Beihai professional cast iron, cast copper, cast aluminum
The company adheres to the business philosophy of customer first, quality first, integrity-based, and casting high-quality products. We sincerely hope to cooperate with you and develop hand in hand!
I plant specializing in the production and sale of various grades of steel castings, gray iron castings and ductile iron castings and other castings.
Production molding adopts ordinary coal powder sand, resin sand molding and other technological means to produce all kinds of machine tool castings, marine castings, pump castings, etc. The largest single weight of castings can be produced about 12 tons. Our factory has rich production experience, professional production process and advanced technology to ensure that it can meet the technical requirements of different castings and different users.
1: Beihai cast iron business is as follows:
① Grey cast iron. The carbon content is high (2.7% ~ 4.0%). The carbon mainly exists in the form of flake graphite, and the fracture is gray, which is called gray iron for short. It has low melting point (1145-1250 ℃), small shrinkage during solidification, close to carbon steel in compressive strength and hardness, and good shock absorption. Due to the existence of flake graphite, it has good wear resistance. The casting performance and cutting process are good. Used to manufacture machine bed, cylinder, box and other structural parts. Its brand number is followed by "HT" with two groups of numbers. For example: HT20-40 (the first number represents the minimum tensile strength and the second group represents the minimum bending strength).
② White cast iron. The content of carbon and silicon is low, the carbon is mainly in the form of cementite, and the fracture is silvery white. It is easy to produce shrinkage cavity and crack. High hardness and brittleness, unable to bear impact load. It is mainly used as the blank of malleable iron and wear-resistant parts.
③ Malleable iron. After annealing of white cast iron, graphite is distributed in floccules, which is called ductile iron for short. Its structure and properties are uniform, wear-resistant, with good plasticity and toughness. It is used to manufacture parts with complex shape and strong dynamic load.
④ Ductile iron. After spheroidizing the gray cast iron, the graphite is spheroidal, which is called nodular iron for short. All or most of the carbon exists as free spheroidal graphite with silver gray fracture surface. Compared with ordinary gray cast iron, it has higher strength, better toughness and plasticity. Its brand number is indicated by two groups of numbers attached to "QT", for example: qt45-5 (the first group of numbers represents the minimum tensile strength and the second group of numbers represents the minimum elongation). It is used to manufacture internal combustion engine, auto parts, agricultural machinery, etc.
⑤ Vermicular cast iron. The graphite of gray cast iron is vermicular after it is vermiculated. The mechanical properties are similar to that of nodular cast iron, and the casting properties are between gray cast iron and nodular cast iron. Parts used to make cars.
⑥ Alloy iron castings. Ordinary cast iron is obtained by adding some alloy elements (such as silicon, manganese, phosphorus, nickel, chromium, molybdenum, copper, aluminum, boron, vanadium, tin, etc.). Alloy elements make the matrix structure of cast iron change, so it has the corresponding characteristics of heat resistance, wear resistance, corrosion resistance, low temperature resistance or non magnetism. It is used to manufacture spare parts of mining, chemical machinery, instruments and meters, etc.
2: Beihai copper casting business is as follows:
Copper sculptures are all cast by wax loss method. In short, it is to melt copper in a high-temperature furnace into a liquid that meets certain requirements, and then pour it into the mold. After cooling, solidification and cleaning treatment, copper sculptures of the same shape and size as the mold can be obtained.
3. Beihai copper forging business is as follows:
The liquid metal is first poured into the cavity of the die by low-speed or high-speed casting, and the die has a movable cavity surface. With the cooling process of the liquid metal, pressure forging can not only eliminate the shrinkage and porosity defects of the blank, but also make the internal structure of the blank reach the broken grain of the forging state.
4: Beihai cast aluminum business is as follows:
1. The influence of cast aluminum strength: material (the mechanical properties of aluminum alloy of different materials are different) 2. The influence of casting process on aluminum alloy is also relatively large. In the as cast situation, it is about: the die-casting is larger than the low-pressure casting and larger than the metal mold and larger than the sand casting. 3. The heat treatment has a great change on the mechanical properties of cast aluminum alloy: some aluminum alloys can be treated by solid fusion or artificial aging Please refer to relevant technical data for specific methods, mainly T1 T2 t3t T4 T5 T6