The main raw materials of brake cylinders and clutch cylinders are aluminum, iron and plastics. Aluminum products in our factory use ZL111 aluminum materials. This material is harder than 110HB, and the appearance is very close to the original surface treatment. The following is a brief introduction to ZL111 aluminum material.
1. Material name: ZAlSi9Cu2Mg
Alloy code: ZL111Standard: GB/T 1173-1995
2. Features and scope of application:
ZL111 is suitable for castings with complex shapes and structures, high loads and high air tightness requirements, as well as parts working in high-pressure gas and liquid, such as rotors, engine blocks and cylinder heads, impellers of large water pumps and other important castings.
3. Chemical composition:Si: 8.0-10.0
Cu: 1.3-1.8
Mn: 0.10-0.35
Mg: 0.4-0.6Zn: 0.1
Ti: 0.10-0.35
Al: marginIron (sand casting): 0.4
Iron (metal mold casting): 0.4
Sn: ≤0.01 (impurity)
Pb: ≤0.05 (impurity)
Note: The sum of impurities: (sand casting)≤1.0; (metal casting)≤1.0