CN104070168B - A kind of chain high abrasion roller oiliness bearing and preparation method thereof - Google Patents

A kind of chain high abrasion roller oiliness bearing and preparation method thereof Download PDF

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Publication number
CN104070168B
CN104070168B CN201410307255.2A CN201410307255A CN104070168B CN 104070168 B CN104070168 B CN 104070168B CN 201410307255 A CN201410307255 A CN 201410307255A CN 104070168 B CN104070168 B CN 104070168B
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powder
oiliness bearing
chain
mixed
parts
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CN201410307255.2A
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Chinese (zh)
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CN104070168A (en
Inventor
刘爱民
许荣玉
宁上中
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张家港振江粉末冶金制品有限公司
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Abstract

The invention discloses a kind of chain high abrasion roller oiliness bearing, according to the mass fraction, it is made up of following raw material: reduced iron powder 80 parts, copper powder 20 parts, graphite powder 0.8 1.2 parts, Cu-cladding Al Rod 1.0 2.0 parts, glass putty 1.0 2.0 parts, zinc stearate 0.6 1.0 parts, bobbin oil 0.1 0.15CC part;The preparation process of chain high abrasion roller oiliness bearing is: powder stock mixes, the most repressed, sinter, altogether obtain final products ferrum cuprio oiliness bearing after folding deburring, shaping, vacuum oil immersion, it has the advantages such as high accuracy, high oil content, wearability are good.

Description

A kind of chain high abrasion roller oiliness bearing and preparation method thereof

Technical field

The present invention relates to field of powder metallurgy, be specifically related to a kind of chain high abrasion roller oiliness bearing and preparation method thereof

Background technology

Chain high abrasion roller oiliness bearing refers to utilize mould by sintropae compacting, sintering, shaping, vacuum oil immersion, and obtains dimensional accuracy height, good concentricity, perpendicularity is good, anti-wear performance is good oiliness bearing.Comparing than existing cuprio oiliness bearing, ferrum cuprio oil containing bearing material cost has been floated downward half.

Summary of the invention

The technical problem to be solved is: provide a kind of chain high abrasion roller oiliness bearing with advantages such as high accuracy, high oil content, wearability are good.

For solving above-mentioned technical problem, the technical solution adopted in the present invention is: a kind of powder metallurgy oil-impregnated bearing, according to the mass fraction, it is made up of following raw material: reduced iron powder (FHY80.23) 80 parts, copper powder (usually electrolytic copper powder, granularity is 200 mesh) 20 parts, graphite powder 0.8-1.2 part, Cu-cladding Al Rod 1.0-2.0 part, glass putty (FSn2) 1.0-2.0 part, zinc stearate 0.6-1.0 part and bobbin oil (10#) 0.1-0.15 ml/kg all solids raw material.

To be solved by this invention further technical problem is that: the preparation method of a kind of chain high abrasion roller oiliness bearing with advantages such as high accuracy, high oil content, wearability are good is provided.

For solving above-mentioned further technical problem, the technical solution adopted in the present invention is: the preparation method of a kind of chain high abrasion roller oiliness bearing.

1) batch mixing: reduced iron powder (FHY80.23) is loaded in mixed powder machine, then, electrolytic copper powder (200 mesh), glass putty (FSn2), Cu-cladding Al Rod, bobbin oil (10#) is added in mixed powder machine, stir 10-20 minute, graphite powder and zinc stearate is added again in mixed powder machine, sieve after stirring, place at least 12 hours, obtain ferrum cuprio mixed-powder;

2) compacting: by step 1) gained ferrum cuprio mixed-powder loads in mould, compressing under the pressure of 500~530MPa;

3) sintering: by through step 2) compressing green compact are placed through net belt sintering furnace, and under the protection of hydrogen and nitrogen mixed gas, guipure is advanced with the speed of 90~100 mm/min;First passing through preheating section, temperature is 350~650 DEG C, and the time is no less than 35 minutes, by zinc stearate and binding agent burn off, is then passed through high temperature section, temperature 650~850 DEG C, and the time is no less than 1 hour, finally, through cooling section, comes out of the stove;

4) altogether folding deburring: will be through step 3) oiliness bearing that sinters loads altogether in folding machine, polishes 20-30 minute, remove flash removed;

5) shaping: install the shaping mould of oiliness bearing on shaping punch press, puts into oiliness bearing in mould, carries out Shape correction, and the oiliness bearing of shaped mistake improves the form and position tolerances such as dimensional accuracy, concentricity, perpendicularity;

6) vacuum oil immersion: by orthopedic oiliness bearing, evacuation under an atmospheric pressure, oil is penetrated in bearing.

Described when sieving, grit number is 80~100 mesh.

Described hydrogen is 2.5~30:70~97.5 with the percent by volume of nitrogen.

The invention has the beneficial effects as follows: compared with traditional machining bevel gear, powder metallurgy bevel gear of the present invention, it is that after iron powder, copper powder, graphite powder, nikel powder, molybdenum powder, micro mist wax, calcium fluoride being sufficiently mixed, the alloyed iron-based powder that obtains is obtaining finished product through suppressing, sinter, machining, after heat treatment and surface vibration milled processed, because have employed powder metallurgy processing technique, significantly reduce manufacturing cost, improve stock utilization and production efficiency.

Detailed description of the invention

Below by embodiment, describe the proportioning raw materials of powder metallurgy bevel gear of the present invention in detail.

Embodiment 1

Reduced iron powder (FHY80.23) 80 kilograms, electrolytic copper powder (200 mesh) 20 kilograms, graphite powder 0.8 kilogram, Cu-cladding Al Rod 1.0 kilograms, glass putty (FSn2) 1.0 kilograms, zinc stearate 0.6 kilogram, bobbin oil (10#) 15mL.

Embodiment 2

Reduced iron powder (FHY80.23) 80 kilograms, electrolytic copper powder (200 mesh) 20 kilograms, graphite powder 1.0 kilograms, Cu-cladding Al Rod 1.5 kilograms, glass putty (FSn2) 1.5 kilograms, zinc stearate 0.7 kilogram, bobbin oil (10#) 12mL.

Embodiment 3

Reduced iron powder (FHY80.23) 80 kilograms, electrolytic copper powder (200 mesh) 20 kilograms, graphite powder 0.9 kilogram, Cu-cladding Al Rod 2.0 kilograms, glass putty (FSn2) 1.2 jin, zinc stearate 0.8 kilogram, bobbin oil (10#) 14mL.

The chain preparation method of high abrasion roller oiliness bearing, comprises the following steps:

1) batch mixing: first take the raw material described in claim 1, first reduced iron powder (FHY80.23) is loaded in mixed powder machine, then, in mixed powder machine, add electrolytic copper powder (200 mesh), glass putty (FSn2), Cu-cladding Al Rod, bobbin oil (10#), stir 10-20 minute, then in mixed powder machine, add graphite powder and zinc stearate, sieve after stirring, then, place at least 12 hours, obtain ferrum cuprio mixed-powder.

2) compacting: by step 1) the ferrum cuprio mixed-powder that obtains loads in mould, compressing under the pressure of 500~530Mpa;

3) sintering: compressing green compact are placed through net belt sintering furnace; under the protection of hydrogen and nitrogen mixed gas; guipure is advanced with the speed of 90~100 mm/min, first passes through preheating section, and temperature is that 350~650 DEG C of times were no less than 35 minutes; by zinc stearate and binding agent burn off; being then passed through high temperature section, temperature 650~850 DEG C, the time is no less than 1 hour; finally, come out of the stove through cooling section;

4) folding deburring altogether: the oiliness bearing sintered is loaded and is total in folding machine, polish 20-30 minute, impulse-free robustness;

5) shaping: install the shaping mould of oiliness bearing on shaping punch press, puts in mould by the oiliness bearing of good for leaching oil, and the oiliness bearing of shaped mistake improves the form and position tolerances such as dimensional accuracy, concentricity, perpendicularity;

6) vacuum oil immersion: by orthopedic oiliness bearing, evacuation under an atmospheric pressure, oil is penetrated in bearing.

In sum, it is only presently preferred embodiments of the present invention, not being used for limiting the scope that the present invention implements, all equalizations made according to the shape described in scope of the invention as claimed, structure, feature and spirit change and modify, all should be included in scope of the presently claimed invention.

Claims (3)

1. a chain preparation method for high abrasion roller oiliness bearing, the steps include:
1) batch mixing: loaded by reduced iron powder in mixed powder machine, then, adds copper in mixed powder machine Powder, glass putty, Cu-cladding Al Rod powder, bobbin oil, stir 10-20 minute, then adds in mixed powder machine Enter graphite powder and zinc stearate, sieve after stirring, place at least 12 hours, obtain ferrum Cuprio mixed-powder;
2) compacting: by step 1) gained ferrum cuprio mixed-powder loads in mould, 500~ Under the pressure of 530MPa compressing;
3) sintering: by through step 2) compressing green compact are placed through net belt sintering furnace, Under the protection of hydrogen and nitrogen mixed gas, guipure is with the speed of 90~100 mm/min Advance, carry out three stage sintering processes;
4) altogether folding deburring: will be through step 3) oiliness bearing that sinters loads altogether in folding machine, Polish 20-30 minute, remove flash removed;
5) shaping: oiliness bearing is carried out on shaping punch press Shape correction;
6) vacuum oil immersion: by orthopedic oiliness bearing, evacuation, oil is penetrated into bearing In, obtain chain high abrasion roller oiliness bearing;
Chain high abrasion roller oiliness bearing, according to the mass fraction, is made up of following raw material: Reduced iron powder 80 parts, copper powder 20 parts, graphite powder 0.8-1.2 part, Cu-cladding Al Rod powder 1.0-2.0 Part, glass putty 1.0-2.0 part, zinc stearate 0.6-1.0 part and bobbin oil 0.1-0.15 ml/kg All solids raw material;
3) sintering described in three stage sintering processes process conditions: warm-up phase, temperature be 350~ 650 DEG C, the time is no less than 35 minutes;Hot stage, temperature 650~850 DEG C, the time is not Less than 1 hour;Cooling stage, cools down, comes out of the stove;
Step 1) in when sieving, the mesh number of described sieve is 80~100 mesh.
A kind of preparation side of chain high abrasion roller oiliness bearing Method, it is characterised in that: the percent by volume of described hydrogen and nitrogen be 2.5~30:70~ 97.5。
A kind of preparation side of chain high abrasion roller oiliness bearing Method, it is characterised in that: described copper powder size is 200 mesh.
CN201410307255.2A 2014-06-30 2014-06-30 A kind of chain high abrasion roller oiliness bearing and preparation method thereof CN104070168B (en)

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CN108526460A (en) * 2018-05-21 2018-09-14 海安县鹰球粉末冶金有限公司 A kind of manufacturing method applied to automobile lamp motor oiliness bearing
CN108515178A (en) * 2018-05-21 2018-09-11 成都威士达粉末冶金有限公司 A kind of copper-based oil containing bearing material of iron and preparation method thereof
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