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High-corrosion-resistant steel ball for automobile water pump bearing

A high corrosion resistance, water pump bearing technology, applied in the parts, pumps, pump components of pumping devices for elastic fluids, etc. Use effect, good connection tightness effect

Inactive Publication Date: 2020-11-03
TSUBAKI HOOVER TAICANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a steel ball with high corrosion resistance for automobile water pump bearings, so as to solve the problem that the existing automobile water pump bearings in the above background technology are in contact with the internal cooling water for a long time and are prone to surface corrosion. Affect the precision of the bearing, cause liquid leakage, and reduce the service life of the problem

Method used

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  • High-corrosion-resistant steel ball for automobile water pump bearing

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A high-corrosion-resistant steel ball for automobile water pump bearings, comprising an inner sphere 1 and an outer corrosion-resistant layer 2, the outer corrosion-resistant layer 2 being evenly distributed on the outer wall of the inner sphere 1;

[0041] The raw materials of the inner sphere 1 are: C: 1.0%, Si: 0.17%, Mn: 0.40%, P: ≤0.03, S: ≤0.03, and the rest is Fe;

[0042] The raw materials of the outer corrosion-resistant layer 2 are: C: 1.0%, Si: 0.2%, Mn: 0.2%, Cu: ≤0.02, Cr: 0.85%, Mo: ≤0.075, P: 0.01%, S: 0.01%, the rest is Fe;

[0043] The outer anti-corrosion layer 2 is hot-coated on the outer wall of the inner sphere 1, and after the outer anti-corrosion layer 2 is hot-dipped, the outer wall of the outer anti-corrosion layer 2 is polished by a grinder. Hot-dip method, melt and mix the outer corrosion-resistant layer 2 evenly, put the cast inner sphere 1 into the raw material of the melt-mixed outer corrosion-resistant layer 2, take it out at an interval ...

Embodiment 2

[0045]A high-corrosion-resistant steel ball for automobile water pump bearings, comprising an inner sphere 1 and an outer corrosion-resistant layer 2, the outer corrosion-resistant layer 2 being evenly distributed on the outer wall of the inner sphere 1;

[0046] The raw materials of the inner sphere 1 are: C: 1.075%, Si: 0.185%, Mn: 0.41%, P: ≤0.03, S: ≤0.03, and the rest are Fe;

[0047] The raw materials of the outer corrosion-resistant layer 2 are: C: 1.05%, Si: 0.25%, Mn: 0.265%, Cu: ≤0.02, Cr: 1.185%, Mo: ≤0.075, P: 0.015%, S: 0.015%, the rest is Fe;

[0048] The outer anti-corrosion layer 2 is hot-coated on the outer wall of the inner sphere 1, and after the outer anti-corrosion layer 2 is hot-dipped, the outer wall of the outer anti-corrosion layer 2 is polished by a grinder. Hot-dip method, melt and mix the outer corrosion-resistant layer 2 evenly, put the cast inner sphere 1 into the raw material of the melt-mixed outer corrosion-resistant layer 2, take it out at an...

Embodiment 3

[0050] A high-corrosion-resistant steel ball for automobile water pump bearings, comprising an inner sphere 1 and an outer corrosion-resistant layer 2, the outer corrosion-resistant layer 2 being evenly distributed on the outer wall of the inner sphere 1;

[0051] The raw materials of the inner sphere 1 are: C: 1.15%, Si: 0.2%, Mn: 0.42%, P: ≤0.03, S: ≤0.03, and the rest is Fe;

[0052] The raw materials of the outer corrosion-resistant layer 2 are: C: 1.1%, Si: 0.3%, Mn: 0.33%, Cu: ≤0.02, Cr: 1.32%, Mo: ≤0.075, P: 0.02%, S: 0.02%, the rest is Fe;

[0053] The outer anti-corrosion layer 2 is hot-coated on the outer wall of the inner sphere 1, and after the outer anti-corrosion layer 2 is hot-dipped, the outer wall of the outer anti-corrosion layer 2 is polished by a grinder. Hot-dip method, melt and mix the outer corrosion-resistant layer 2 evenly, put the cast inner sphere 1 into the raw material of the melt-mixed outer corrosion-resistant layer 2, take it out at an interval...

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Abstract

The invention belongs to the technical field of automobile parts, and particularly relates to a high-corrosion-resistant steel ball for an automobile water pump bearing. The high-corrosion-resistant steel ball comprises an inner ball body and an outer corrosion-resistant layer, and the outer corrosion-resistant layer is uniformly distributed on the outer wall of the inner ball body; the inner ballbody is prepared from the following raw materials in percentage by mass: 1.0-1.15% of C, 0.17-0.2% of Si, 0.40-0.42% of Mn, less than or equal to 0.03% of P, less than or equal to 0.03% of S and thebalance of Fe; raw materials of the outer corrosion-resistant layer comprise C, Si, Mn, Cu, Cr, Mo, P, S and Fe; the outer wall of the inner ball body is coated with the outer corrosion-resistant layer, so that the outer wall of the inner ball body is closed, and the inner ball body insides is not prone to being corroded; due to the arrangement of connecting slotted holes, the connecting tightnessof the inner ball body and the outer corrosion-resistant layer is good; and through the raw material ratios of the inner ball body and the outer corrosion-resistant layer, the inner ball body can have high wear resistance, and the outer corrosion-resistant layer has high corrosion resistance while having the wear resistance.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a highly corrosion-resistant steel ball for an auto water pump bearing. Background technique [0002] In the cylinder block of the car engine, there are many water channels for cooling water circulation, which are connected with the radiator (commonly known as the water tank) placed in the front of the car through water pipes to form a large water circulation system. There is a water pump driven by the fan belt to pump the hot water out of the water channel of the engine block and pump the cold water in. [0003] The interior of the automobile water pump contains bearings. For the bearings, the corrosion resistance requirements are relatively high. The existing automobile water pump bearings are in contact with the internal cooling water for a long time, which is prone to surface corrosion, which affects the precision of the bearings and causes liquid leakage. , reduce the se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/20C22C38/22C23C2/04F04D29/02F04D29/046
CPCC22C38/002C22C38/02C22C38/04C22C38/20C22C38/22C23C2/04F04D29/026F04D29/046
Inventor 张立于文瀚
Owner TSUBAKI HOOVER TAICANG