ã€China Aluminum Industry】 brand application example ZL101 Applicable to sand, metal type and investment casting process, manufacturing complex shapes, thin wall thickness or airtight requirements of medium-load parts, such as arm, bracket, hydraulic Components, accessory housings, instrument housings, etc. ZL101A can be used for various engines, pumps, housings, etc. of aircraft engines. ZL102 is used for parts with complex shapes and operating temperatures below 200 that require high airtightness to withstand low loads, such as instrument housings, pistons, and brake housings. ZL104 is suitable for the casting of sand or metal molds with complex thin-walled parts. It is suitable for manufacturing medium-loaded parts and working parts whose operating temperature does not exceed 180, such as machine borings, frames, cylinders, etc. ZL105 is suitable for casting more complex shapes and moderate loads. Various engine parts and accessories such as cylinders, casings, oil pump housings and other engine parts operating at temperatures up to 250. ZL108 ZL109 Used for parts operating at high temperatures (≤ 250) such as engine pistons. When it is required that the coefficient of thermal expansion is small, the strength is high, and the wear resistance is high, it can also be used. ZL111 is used for large parts with complex shape, high load, and high air tightness. ZL201 is suitable for manufacturing parts with less complex shapes that can withstand high loads or work under 175-300. For example, the ZL201A of an aircraft's pylons, support arms, etc. can withstand high loads, operating temperatures of 300, and moderately complex high-strength components. Castings, such as beams, frames, ribs, and hubs, are used in ZL203 for parts that are simple in shape, withstand medium static and impact loads, and do not exceed 200 operating temperatures and require good machinability, such as crankcases, brackets, and flywheel covers. ZL204A is a new type of alloy. Its application range and working conditions are similar to that of ZL201A, but it has higher strength performance and its working temperature is limited to 200 or less. The alloy has been used to replace the 2A14 to make important parts of the missile, and it can also be used for aircraft load-bearing parts such as various beams and frames. ZL205A T5 state is used for bearing components, such as missiles and aircraft beam frame, arm, bearing and other parts, to reduce weight; and can replace 2A50 and other wrought aluminum, reducing man-hours; T6 state for large load parts, can be replaced 2A14 forgings. Can also replace the medium carbon steel, do the horizontal axis of the radar, etc.; T7 state alloy is used for the bearing member working in the corrosive atmosphere, for example, instead of the 45th steel, the middle wheel of the ultrahigh voltage line is made. The ZL207 is used to make parts that operate at temperatures up to 400 and require airtightness, such as aircraft air distributors and electric valve housings, which can replace copper or titanium alloys, significantly reducing weight and cost. The ZL301 is used in aircraft parts that require high corrosion resistance, ZL303, when special requirements for corrosion resistance (seawater or other corrosive media) or high operating temperatures (200) are used. Such as some seaplanes do not bear large parts or decorative pieces. ZL401 is used for die-casting parts of instrument thin shells. The working temperature should not exceed 200 ZL402 Parts for high static load and impact load but inconvenient for heat treatment. Can also be used for parts that require contact with corrosive media and high dimensional stability. , such as high altitude oxygen regulators.
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