抽沙船在轴承钢中,如果出现严重的碳化物分布不均匀,则在热处理加工过程中就容易造成组织和硬度的不均匀,钢的组织不均匀性对接触疲劳强度有较大的影响。
另外,严重的碳化物不均匀性还容易使轴承零件在淬火冷却时产生裂纹,抽沙船碳化物不均匀性还会导致轴承的寿命降低因此,在轴承材料标准中,对不同规格的钢材均有明确的特别要求。抽沙船对轴承钢而言,表面缺陷包括裂纹、夹渣、毛刺、结疤、氧化皮等,内部缺陷包括缩孔、气泡、白点、严重的疏松和偏析等。
这些缺陷对于轴承的加工、轴承的性能和寿命有很大的影响,抽沙船在轴承材料标准中明确规定不允许出现这些缺陷。
Pumping sand in bearing steel, if appear serious non homogeneous distribution of the carbide, in thermal processing process is easy to cause the uneven microstructure and hardness, the uneven microstructure of on the contact fatigue strength has great influence.
另外,严重的碳化物不均匀性还容易使轴承零件在淬火冷却时产生裂纹,抽沙船碳化物不均匀性还会导致轴承的寿命降低因此,在轴承材料标准中,对不同规格的钢材均有明确的特别要求。抽沙船对轴承钢而言,表面缺陷包括裂纹、夹渣、毛刺、结疤、氧化皮等,内部缺陷包括缩孔、气泡、白点、严重的疏松和偏析等。
Also serious carbides is easy to make bearing parts in the quenching crack, pumping sand carbide inhomogeneous will lead to reduce bearing life is therefore, in the standard of bearing materials and of different specifications of steel are both clear special requirements. Pumping sand for bearing steel, surface defects include cracks, slag, burrs, scarring, skin oxidation clips, and other, internal defects including shrinkage hole, bubble, white, serious porosity and segregation.
这些缺陷对于轴承的加工、轴承的性能和寿命有很大的影响,抽沙船在轴承材料标准中明确规定不允许出现这些缺陷。
These defects for the performance and service life of bearing processing, bearing has great influence, pumping sand in the bearing material standards clearly defined these defects are not allowed. |