CN109434101A - A kind of preparation method of corrosion resisting bearing - Google Patents

A kind of preparation method of corrosion resisting bearing Download PDF

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Publication number
CN109434101A
CN109434101A CN201811545872.0A CN201811545872A CN109434101A CN 109434101 A CN109434101 A CN 109434101A CN 201811545872 A CN201811545872 A CN 201811545872A CN 109434101 A CN109434101 A CN 109434101A
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CN
China
Prior art keywords
parts
preparation
roasting
modifying agent
bearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811545872.0A
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Chinese (zh)
Inventor
傅利祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Shenhe Bearing Co Ltd
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Ningbo Shenhe Bearing Co Ltd
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Filing date
Publication date
Application filed by Ningbo Shenhe Bearing Co Ltd filed Critical Ningbo Shenhe Bearing Co Ltd
Priority to CN201811545872.0A priority Critical patent/CN109434101A/en
Publication of CN109434101A publication Critical patent/CN109434101A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1017—Multiple heating or additional steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/08—Making cast-iron alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/06—Cast-iron alloys containing chromium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/10—Cast-iron alloys containing aluminium or silicon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The invention discloses a kind of preparation methods of corrosion resisting bearing, the following steps are included: 3-6 parts of C, 3-8 parts of Cr, 2-6 parts of Mo, 0.05-0.1 parts of Ti, 3-5 parts of Mn, 0.05-0.1 parts of Ir, 2-6 parts of Nb, 5-8 parts of W, 2-5 parts of Si, 8-20 parts of Co, 80-90 parts of Fe and 2-3 parts of modifying agent are poured into batch mixer by weight, continuous uniform mixing 20-50 minutes；It is sintered after being then injected into mold internal pressure embryo, sintering temperature is promoted to 900 DEG C by 400 DEG C, and sintering time is 200-250 minutes；After heat preservation 12 hours, then after rolling, resintering, rolling again.A kind of preparation method of corrosion resisting bearing provided by the invention, addition Ir can increase the wearability of bearing, and addition W can improve the inoxidizability and corrosion resistance of bearing, and addition modifying agent can be improved the consistency of bearing, increase intensity and corrosion resistance.

Description

A kind of preparation method of corrosion resisting bearing
Technical field
The present invention relates to field of bearings, in particular to a kind of preparation method of corrosion resisting bearing.
Background technique
Bearing plays the components of bearing or guiding role for determining rotary shaft and other parts relative motion position.It Major function be to support mechanical rotary body, to reduce mechanical load coefficient of friction of the equipment in transmission process.Therefore it needs Want bearing steel that there is preferable hardness, intensity, toughness and stability.
But existing bearing is generally wear-resisting or corrosion-resistant to improve its using one layer of coating is coated outside bearing, still For a long time, it is easy to fall off, replacement frequency is high.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of preparation method of corrosion resisting bearing.
To achieve the goals above, the preparation method of a kind of corrosion resisting bearing provided by the invention, comprising the following steps:
By weight by 3-6 parts of C, 3-8 parts of Cr, 2-6 parts of Mo, 0.05-0.1 parts of Ti, 3-5 parts of Mn, Ir 0.05-0.1 Part, 2-6 parts of Nb, 5-8 parts of W, 2-5 parts of Si, 8-20 parts of Co, 80-90 parts of Fe and 2-3 parts of modifying agent pour into batch mixer, even Continue uniform mixing 20-50 minutes；It is sintered after being then injected into mold internal pressure embryo, sintering temperature is promoted to by 400 DEG C 900 DEG C, sintering time is 200-250 minutes；After heat preservation 12 hours, then after rolling, resintering, rolling again,
The modifying agent be Sr modification Na, Ta composite oxides, Na/Ta ratio be 1.02:1 ~ 1.06:1, Sr/Ta ratio be 2:1 ~ 8:1, preparation flow are as follows:
1) roasting process: by Na2CO3、Ta2O5And SrCO3It is placed on after being mixed in aluminium boat and roasts, roasting condition are as follows:
A. from room temperature to 600 DEG C, 3 h are kept;
B. 900 DEG C are then heated to, 2 h are kept；
C. 1200 DEG C are then raised temperature to, 10 ~ 12 h are kept.
In roasting process, from room temperature to 600 DEG C, and from 600 900 DEG C are warming up to, according to the speed of 40 DEG C/min Rate heating.1200 DEG C are warming up to from 900, is heated up according to the rate of 30 DEG C/min.It needs to be passed through N under all roasting conditions2As Gas is protected, gas flow rate is not higher than 40 mL/min.It is to keep presoma slow why by the way of this cascade heating It is slow to decompose, guarantee slow, the complete growth of product crystal, to guarantee the quality of final products.The introducing of Sr element can have Effect increases lattice dimensions, to improve the probability that reactant enters lattice, improves catalytic activity.In addition, the electron rich shell of Sr Energy needed for reactant activation can be provided, is vital for improving catalyst activity.
2) water treatment procedure: sample is cooled to room temperature, and collects sample, after grinding, is impregnated with deionized water and at ultrasound 1 h is managed, after 12 h are dried at 100 DEG C, is replaced in aluminium boat in 800 DEG C of 4 h of roasting, is collected after cooling spare.Using going Ionized water immersion is for remaining Na element of going out.
3) washing process: gained sample being placed in the HCl solution of 1 mol/L, after 20 min of ultrasound, filters out solid, is used It after ethanol washing 3 times, then is washed with deionized, filters out solid, slightly ground after drying, collect spare.
In above-mentioned water treatment procedure, need to be ground to the powder that partial size is not more than 100 microns before sample water process.Washing In the process, sample need to be washed through deionized water to cleaning solution pH=7.After washing, the drying temperature of sample is 100 DEG C, is passed through Ar As protection gas, gas flow rate is 40 ~ 80 mL/min.Notice that powder diameter should not be too large, to guarantee higher contact area, Guarantee sample quality
A kind of preparation method of corrosion resisting bearing provided by the invention, addition Ir can increase the wearability of bearing, and addition W can be mentioned The inoxidizability and corrosion resistance of high bearing, addition modifying agent can be improved the consistency of bearing, increases intensity and corrosion resistance.
Specific embodiment
Embodiment 1
A kind of preparation method of corrosion resisting bearing provided in this embodiment, comprising the following steps: the following steps are included:
By weight by 3 parts of C, 3 parts of Cr, 2 parts of Mo, 0.05 part of Ti, 3 parts of Mn, 0.05 part of Ir, 2 parts of Nb, 5 parts of W, Si 2 parts, 8 parts of Co, 80 parts of Fe and 2 parts of modifying agent pour into batch mixer, and continuous uniform mixing 20-50 minutes；It is then injected into mold It is sintered after internal pressure embryo, sintering temperature is promoted to 900 DEG C by 400 DEG C, and sintering time is 200-250 minutes；Heat preservation 12 After hour, then after rolling, resintering, rolling again,
The modifying agent is Na, Ta composite oxides of Sr modification, preparation flow are as follows:
1) roasting process: by Na2CO3、Ta2O5And SrCO3It is placed on after being mixed in aluminium boat and roasts, roasting condition are as follows:
A. from room temperature to 600 DEG C, 3 h are kept;
B. 900 DEG C are then heated to, 2 h are kept；
C. 1200 DEG C are then raised temperature to, 10 ~ 12 h are kept.
In preparation process, Na/Ta ratio is 1.05:1, and Sr/Ta ratio is 3:1.In roasting process, from room temperature to 600 DEG C, And 900 DEG C are warming up to from 600, heat up according to the rate of 40 DEG C/min.1200 DEG C are warming up to from 900, according to 30 DEG C/min Rate heating.It needs to be passed through N under all roasting conditions2As protection gas, gas flow rate is not higher than 40 mL/min.
2) water treatment procedure: sample is cooled to room temperature, and collects sample, after grinding, is impregnated with deionized water and at ultrasound 1 h is managed, after 12 h are dried at 100 DEG C, is replaced in aluminium boat in 800 DEG C of 4 h of roasting, is collected after cooling spare.
3) washing process: gained sample being placed in the HCl solution of 1 mol/L, after 20 min of ultrasound, filters out solid, is used It after ethanol washing 3 times, then is washed with deionized, filters out solid, slightly ground after drying, collect spare.
In above-mentioned water treatment procedure, need to be ground to the powder that partial size is not more than 100 microns before sample water process.Washing In the process, sample need to be washed through deionized water to cleaning solution pH=7.After washing, the drying temperature of sample is 100 DEG C, is passed through Ar As protection gas, gas flow rate is 40 ~ 80 mL/min.
Embodiment 2
The preparation method of a kind of corrosion resisting bearing provided in this embodiment, the difference from embodiment 1 is that the corrosion-resistant axis It holds 6 parts of C, 8 parts of Cr, 6 parts of Mo, 0.1 part of Ti, 5 parts of Mn, 0.1 part of Ir, 6 parts of Nb, 8 parts of W, Si 5 by weight Part, 20 parts of Co, 90 parts of Fe and 3 parts of modifying agent pour into batch mixer, and continuous uniform mixing 20-50 minutes；It is then injected into mold It is sintered after internal pressure embryo, sintering temperature is promoted to 900 DEG C by 400 DEG C, and sintering time is 200-250 minutes；Heat preservation 12 After hour, then after rolling, resintering, rolling again.
Embodiment 3
The preparation method of a kind of corrosion resisting bearing provided in this embodiment, the difference from embodiment 1 is that the corrosion-resistant axis It holds 5 parts of C, 5 parts of Cr, 5 parts of Mo, 0.05 part of Ti, 3 parts of Mn, 0.05 part of Ir, 5 parts of Nb, 5 parts of W, Si 5 by weight Part, 15 parts of Co, 85 parts of Fe and 3 parts of modifying agent pour into batch mixer, and continuous uniform mixing 20-50 minutes；It is then injected into mold It is sintered after internal pressure embryo, sintering temperature is promoted to 900 DEG C by 400 DEG C, and sintering time is 200-250 minutes；Heat preservation 12 After hour, then after rolling, resintering, rolling again.
Embodiment 4
The preparation method of a kind of corrosion resisting bearing provided in this embodiment, the difference from embodiment 1 is that the preparation of modifying agent When Na/Ta ratio be 1.05:1, Sr/Ta ratio be 6:1.
Embodiment 5
The preparation method of a kind of corrosion resisting bearing provided in this embodiment, the difference from embodiment 1 is that the preparation of modifying agent When Na/Ta ratio be 1.02:1, Sr/Ta ratio be 2:1.
Embodiment 6
The preparation method of a kind of corrosion resisting bearing provided in this embodiment, the difference from embodiment 1 is that the preparation of modifying agent When Na/Ta ratio be 1.06:1, Sr/Ta ratio be 8:1.

Claims (2)

1. a kind of preparation method of corrosion resisting bearing, which comprises the following steps:
By weight by 3-6 parts of C, 3-8 parts of Cr, 2-6 parts of Mo, 0.05-0.1 parts of Ti, 3-5 parts of Mn, Ir 0.05-0.1 Part, 2-6 parts of Nb, 5-8 parts of W, 2-5 parts of Si, 8-20 parts of Co, 80-90 parts of Fe and 2-3 parts of modifying agent pour into batch mixer, even Continue uniform mixing 20-50 minutes；It is sintered after being then injected into mold internal pressure embryo, sintering temperature is promoted to by 400 DEG C 900 DEG C, sintering time is 200-250 minutes；After heat preservation 12 hours, then after rolling, resintering, rolling again,
Na, Ta composite oxides of the modifying agent Sr modification, Na/Ta ratio are 1.02:1 ~ 1.06:1, and Sr/Ta ratio is 2:1 ~ 8: 1, preparation flow are as follows:
1) roasting process: by Na2CO3、Ta2O5And SrCO3It is placed on after being mixed in aluminium boat and roasts, roasting condition are as follows:
A. from room temperature to 600 DEG C, 3 h are kept;
B. 900 DEG C are then heated to, 2 h are kept；
C. 1200 DEG C are then raised temperature to, 10 ~ 12 h are kept；
2) water treatment procedure: sample is cooled to room temperature, and collects sample, after grinding, is impregnated with deionized water and is ultrasonically treated 1 H after drying 12 h at 100 DEG C, is replaced in aluminium boat in 800 DEG C of 4 h of roasting, collects after cooling spare；
3) washing process: gained sample being placed in the HCl solution of 1 mol/L, after 20 min of ultrasound, is filtered out solid, is used ethyl alcohol It after washing 3 times, then is washed with deionized, filters out solid, slightly ground after drying, collect spare.
2. a kind of preparation method of corrosion resisting bearing according to claim 1, which is characterized in that the roasting of above-mentioned modifying agent In the process, 900 DEG C are warming up to from room temperature to 600 DEG C, and from 600, is heated up according to the rate of 40 DEG C/min；From 900 1200 DEG C are warming up to, is heated up according to the rate of 30 DEG C/min；It needs to be passed through N under all roasting conditions2As protection gas, gas stream Speed is not higher than 40 mL/min.
CN201811545872.0A 2018-12-18 2018-12-18 A kind of preparation method of corrosion resisting bearing Pending CN109434101A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201811545872.0A CN109434101A (en) 2018-12-18 2018-12-18 A kind of preparation method of corrosion resisting bearing

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CN109434101A true CN109434101A (en) 2019-03-08

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03138304A (en) * 1989-10-20 1991-06-12 Seiko Electronic Components Ltd Manufacture of porous sintered hard alloy
CN101219908A (en) * 2007-09-21 2008-07-16 南京大学 Multi-component metal oxide semiconductor mesoporous material and synthesizing method thereof
CN103071800A (en) * 2012-11-23 2013-05-01 东睦(江门)粉末冶金有限公司 Iron-based oil-containing bearing and manufacturing method thereof
CN107034422A (en) * 2015-12-14 2017-08-11 斯凯孚公司 Endurance bearing steel
CN108774695A (en) * 2018-06-12 2018-11-09 界首市皖俊轴承有限公司 A kind of preparation method of unleaded cupric bismuth-base alloy bearing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03138304A (en) * 1989-10-20 1991-06-12 Seiko Electronic Components Ltd Manufacture of porous sintered hard alloy
CN101219908A (en) * 2007-09-21 2008-07-16 南京大学 Multi-component metal oxide semiconductor mesoporous material and synthesizing method thereof
CN103071800A (en) * 2012-11-23 2013-05-01 东睦(江门)粉末冶金有限公司 Iron-based oil-containing bearing and manufacturing method thereof
CN107034422A (en) * 2015-12-14 2017-08-11 斯凯孚公司 Endurance bearing steel
CN108774695A (en) * 2018-06-12 2018-11-09 界首市皖俊轴承有限公司 A kind of preparation method of unleaded cupric bismuth-base alloy bearing

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Application publication date: 20190308