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A support block material that does not crush the outer circle of the camshaft

A support block and camshaft technology, applied in the field of support block materials, can solve the problems of short life and unsatisfactory, and achieve the effect of prolonging the service life, eliminating secondary processing and improving the processing quality of workpieces.

Active Publication Date: 2021-09-21
JIANGXI TONGXIN MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to eliminate this kind of indentation, start with reducing the hardness of the support block, use plastic, rubber, powder metallurgy materials, the indentation can be solved, but the life is very short, and the powder metallurgy with relatively long life needs to be replaced frequently in the production process , cannot meet the requirements of mass production. Regarding the material of the camshaft outer circle support block, from the hardest diamond PCD, YG8 originally equipped with the machine tool, to the softest graphite copper, all of them are not satisfactory after trial.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The supporting block material that does not damage the outer circle of the camshaft of the present invention is made of six metal materials of copper, tungsten, nickel, tin, zinc, and platinum according to the weight ratio, and is made into an alloy with hardness by mixing metal powder, molding, and sintering. It is the supporting block of HRC29-30.

[0031] The preferred weight percentage ratio of the formula for preparing the support block material of the present invention is:

[0032] Copper 58%, Tungsten 18%, Nickel 9%, Tin 5%, Zinc 5%, Platinum 5%;

[0033] The production method that above-mentioned raw material is made support block material of the present invention is:

[0034] 1. Mixed metal powder

[0035] Weigh according to the weight ratio of copper 58%, tungsten 18%, nickel 9%, tin 5%, zinc 5%, platinum 5%, put them into the mixer together, stir and mix evenly to form alloy powder;

[0036] 2. Mold making

[0037] Manufacture the graphite mold according ...

Embodiment 2

[0041] The supporting block material that does not damage the outer circle of the camshaft of the present invention is made of six metal materials of copper, tungsten, nickel, tin, zinc, and platinum according to the weight ratio, and is made into an alloy with hardness by mixing metal powder, molding, and sintering. It is the supporting block of HRC29-30.

[0042] The preferred weight percentage ratio of the formula for preparing the support block material of the present invention is:

[0043] Copper 60%, Tungsten 22%, Nickel 11%, Tin 2%, Zinc 3%, Platinum 2%;

[0044] The production method that above-mentioned raw material is made support block material of the present invention is:

[0045] 1. Mixed metal powder

[0046] 60% copper, 22% tungsten, 11% nickel, 2% tin, 3% zinc, and 2% platinum are respectively weighed according to the weight ratio, put into the mixer together, stir and mix evenly, and form alloy powder;

[0047] 2. Mold making

[0048] Manufacture the graph...

Embodiment 3

[0052] The supporting block material that does not damage the outer circle of the camshaft of the present invention is made of six metal materials of copper, tungsten, nickel, tin, zinc, and platinum according to the weight ratio, and is made into an alloy with hardness by mixing metal powder, molding, and sintering. It is the supporting block of HRC29-30.

[0053] Through several rounds of tests, the optimum weight percentage distribution ratio for preparing the support block material of the present invention is:

[0054] Copper 50%, Tungsten 30%, Nickel 13%, Tin 1%, Zinc 4%, Platinum 2%;

[0055] The production method that above-mentioned raw material is made support block material of the present invention is:

[0056] 1. Mixed metal powder

[0057] 50% of copper, 30% of tungsten, 13% of nickel, 1% of tin, 4% of zinc, and 2% of platinum are respectively weighed according to the weight ratio, put into the mixer together, stir and mix evenly, and form alloy powder;

[0058]...

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Abstract

The invention discloses a support block material which does not damage the outer circle of the camshaft. It is made of six metal materials, copper, tungsten, nickel, tin, zinc and platinum, according to the weight ratio, mixed with metal powder, molded and sintered. To form a support block with an alloy hardness of HRC 29-30, the formula weight percentage range for preparing the support block material of the present invention is: copper 50-70%, tungsten 10-30%, nickel 5-15%, tin 1-5% , 1-5% zinc, 1-5% platinum; the use of the support block material of the present invention can not only ensure the hardness requirements of the support block, but also meet the requirements of mass production, leave no traces after the workpiece is processed, and eliminate the phenomenon of crushing the workpiece .

Description

technical field [0001] The invention relates to a support block material which does not crush the outer circle of a camshaft. [0002] technical background [0003] The camshaft is a slender shaft. Due to the change of the lift, the grinding force in the circumferential direction is different in cam grinding. When the rigidity of the workpiece is insufficient during processing, the processed product is unqualified. In order to improve the processing rigidity during cam grinding, Ensure that the center of rotation of the cam is coaxial with the center of rotation of the camshaft on the cylinder head. The cam grinder is equipped with a support center frame on the diameter of the camshaft's rotation shaft. The specified acceptance product can meet the requirements, but the replacement product, especially the material is different. The support block of the center frame of the current product has the phenomenon of crushing the workpiece. The domestic counterparts have encountered ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/00C22C1/04B22F3/14
CPCB22F3/14C22C1/0425C22C9/00
Inventor 杨启明张国海余天
Owner JIANGXI TONGXIN MACHINERY MFG
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