Tin Bronze 5-5-5- Copper Sleeve for Hydraulic Cylinder

Hydraulic cylinder is a kind of pressure light processing, is the use of metal at room temperature in the state of cold plastic characteristics, use rolling tool to exert some pressure on the surface of the workpiece, the workpiece surface of metal plastic flow, fill in the original residual indentation trough, and reach the surface roughness value is reduced. Due to the rolling surface of metal plastic deformation, the surface microstructure of cold hardening and grain fining, forming a dense fibrous, and the formation of residual stress layer, the hardness and strength increase, so as to improve the surface wear resistance, corrosion resistance and compliance.
Cylinder is one of the most important parts of construction machinery, in use process often seals due to wear, the wear of the cylinder, inner wall of scratch and corrosion on the wall, the piston or piston rod scratch and cause failure, equipment hydraulic execution element is coated pressure cylinder sealing performance directly affects equipment performance, especially larger hydraulic cylinder after the seal is damaged, repair or replacement of parts is very difficult and high cost, so hydraulic cylinder dedicated copper set selection is crucial. The tin bronze 5-5-5 performance are as follows:
ZCuSn5Pb5Zn5 cast copper alloy has good wear resistance and corrosion resistance, easy processing, good casting property and good air tightness. ZCuSn5Pb5Zn5 casting copper alloy used for in high load, medium sliding speeds work wear resistant corrosion of parts, such as bearing, bushing, cylinder liner, clutch piston, pump cover and the worm gear, and so on.
The chemical composition of ZCuSn5Pb5Zn5 bronze:
Cu: the rest of copper
Tin Sn:4.0 ~ 6
Zinc Zn:4.0 ~ 6
Lead Pb:4.0 ~ 6
P: P = 0.05 (impurities)
Ni: Ni = 2.5 (not included in the total impurity)
Al Al: = 0.01 (impurities)
Iron: Fe = 0.3 (impurities)
Silicon Si: less than 0.01 (impurities)
Sb: Sb = 0.25 (impurities)
S: less than 0.10 sulfur (impurities)
Note: the total impurity is less than or equal to 1
The mechanical properties of tin bronze ZCuSn5Pb5Zn5:
The ultimate tensile strength of B (MPa): 200
Yield strength (MPa): 90
5 elongation (%): 13
The hardness is not less than 590HB (reference value)
ZCuSn5Pb5Zn5 tin bronze heat treatment specification:
Heating temperature 1188 ~ 1220
The pouring temperature 1150 to 1200 DEG C
Methods: - ZCuSn5Pb5Zn5 tin bronze casting sand casting, metal casting
Qufu Miao Kong Industrial and mining parts factory specializing in the production of hydraulic cylinders for the use of tin bronze 5-5-5 sets, as well as various specifications of various specifications of copper, copper, copper, copper, copper slide, worm, worm nut, etc.. Since 30 years we have accumulated a rich experience, trained to have a mature technology, and by virtue of our product quality and credibility of the company at once to the country, in all parts of the country have a long-term partner. We will continue to carry forward the fine tradition of our company, to do better. Welcome to cooperation.