CN107674947A - Normalizing liquid, its preparation method and the high-carbon alloy steel normalizing cooling technique of a kind of high-carbon alloy steel - Google Patents
Normalizing liquid, its preparation method and the high-carbon alloy steel normalizing cooling technique of a kind of high-carbon alloy steel Download PDFInfo
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- CN107674947A CN107674947A CN201710645464.1A CN201710645464A CN107674947A CN 107674947 A CN107674947 A CN 107674947A CN 201710645464 A CN201710645464 A CN 201710645464A CN 107674947 A CN107674947 A CN 107674947A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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Abstract
The present invention relates to steel-casting technical field of heat treatment, normalizing liquid, its preparation method and the high-carbon alloy steel normalizing cooling technique of especially a kind of high-carbon alloy steel, the normalizing liquid of every 100 parts by weight include following components in parts by weight：50~60 parts of base oil, polyacrylic acid PAAS1~3 part, appropriate 5~10 parts of youngster's fatty acid oil, 5~10 parts of hydramine, 5~8 parts of AEO, 3~5 parts of petroleum sodium sulfonate, 1~2 part of bactericide, 0.1~0.5 part of defoamer, surplus is water.The normalizing liquid of the high-carbon alloy steel of the present invention mainly improves the intensity of high-carbon alloy steel, solves exceeded problem of the big specification sectional dimension in more than 60mm net carbides.
Description
Technical field
The present invention relates to steel-casting technical field of heat treatment, the normalizing liquid of especially a kind of high-carbon alloy steel, its preparation side
Method and high-carbon alloy steel normalizing cooling technique.
Background technology
The country is currently without a kind of special high-carbon alloy steel normalizing liquid.The normalizing cooling medium one of present high-carbon alloy steel
As cooled down using water cooling or quenching oil, water cooling cooling rate is too fast, product workpiece easily cracking and scrap, cost is virtually increased,
And it is unfavorable for controlling；Quenching oil cools down, and cooling rate is too slow, it is impossible to net carbide is controlled well, and oil smoke is big, pollutes environment,
It is also easy to catch fire, is unfavorable for keeping the safety in production.Particularly in bearing steel ball GCr15 materials in big specification sectional dimension in more than 60mm
Being easy to for net carbide is exceeded.High-carbon-chromium bearing steel is hypereutectoid steel, can be along austenite grain boundary during roller repairing
Proeutectoid cementite is separated out, this is carbide network.Practice have shown that the presence of carbide inhomogeneities has a strong impact on making for steel
Use performance.Carbide network can increase the fragility of steel, damage the service life of bearing parts, data introduction, carbide network
Per elevated by one step, bearing life will reduce by 1/3rd, and be closed by GB/T18254-2016 standard detections carbide network rank
Lattice rank is 1-2.5 levels.It is common problem that current domestic bearing steel production firm runs into that carbide network is exceeded, for this side
The research in face is more, and major measure is to control the precipitation of GCr15 bearing steels proeutectoid carbide in continuous cooling process, is used
Normalized treatment eliminates or mitigated carbide network after forging.Generally use in production and cooled down with water normalizing, product is easy to ftracture；
Cooled down with quenching oil normalizing, being easy to for net carbide is exceeded；So it is cold between water and oil to be badly in need of a kind of cooling velocity
But medium, and comparatively safe and environmentally friendly cooling medium；And the other water-soluble cooling mediums of in the market, it is that a kind of cooling performance is special
Not Wen Ding at the uniform velocity cooling medium, belong to PVP (PVP) class medium, in addition to PVP main components, also contain carboxylic
Sodium carboxymethylcellulose pyce (CMC) and Sodium Polyacrylate (ACR).Its excellent cooling performance is mainly existed by PVP and two kinds of components of CMC
Collective effect in the range of certain proportion and obtain.But because CMC glycosidic bond is easily broken, especially hot stage (400-
850 DEG C) its decomposition can be accelerated so that and molecular weight reduces, and reduces the viscosity and concentration of at the uniform velocity cooling medium, and then change even
The cooling characteristics of fast cooling medium, thus using this at the uniform velocity cooling medium is produced when, frequently to carry out concentration monitor
Come make up its composition transfer the problem of.At the uniform velocity cooling medium and its controlled disclosed in Chinese patent CN103789520A after forging
It application in cooling procedure, can effectively be controlled " secondary banding ", obtained using the PVP at the uniform velocity cooling mediums of 20%-30% concentration
Tiny, uniform tissue.But the concentration of the at the uniform velocity cooling medium is higher, more than 20% concentration can just obtain at the uniform velocity
Cooling characteristics, but higher concentration, on the one hand add the input cost of early stage；On the other hand higher viscosity, also increases
The at the uniform velocity band consumption of cooling medium.
The content of the invention
In order to overcome the shortcomings of existing normalizing liquid, the invention provides a kind of normalizing liquid of high-carbon alloy steel, its preparation
Method and high-carbon alloy steel normalizing cooling technique.
The technical solution adopted for the present invention to solve the technical problems is：A kind of normalizing liquid of high-carbon alloy steel, every 100 weight
The normalizing liquid of amount part includes following components in parts by weight：50~60 parts of base oil, polyacrylic acid PAAS1~3 part, appropriate youngster's oil and fat
5~10 parts of acid, 5~10 parts of hydramine, 5~8 parts of AEO, 3~5 parts of petroleum sodium sulfonate, 1~2 part of bactericide, disappears
0.1~0.5 part of infusion, surplus is water.
According to another embodiment of the invention, further comprise that the method includes the steps of：
Step 1：By in 50~60 parts of addition reactors of base oil；
Step 2：Base oil in reactor is heated, is heated to 40~60 DEG C；
Step 3：Add 5~10 parts of the appropriate youngster's fatty acid oil in polyacrylic acid PAAS1~3 part, 5~10 parts of hydramine, fatty alcohol
5~8 parts of APEO, 3~5 parts of petroleum sodium sulfonate, 1~2 part of bactericide, 0.1~0.5 part of defoamer, surplus is water, is kept
Temperature is at 40~60 DEG C.
Step 4：Agitated 1~2 hour of material in reactor, then it is filtrated to get the normalizing liquid of high-carbon alloy steel.
According to another embodiment of the invention, after further comprising that high-carbon alloy steel hot forging terminates, it is directly immersed in normalizing
Cooled down in liquid.
According to another embodiment of the invention, the aqueous solution mass concentration for further comprising normalizing liquid is 10-15%, cold
Speed control is in 65-75 DEG C/S.
According to another embodiment of the invention, further comprise that normalizing liquid cooling rate is slower than the cooling rate of water, than quenching oil
Cooling rate is fast, to reach the requirement of control carbide.
The invention has the advantages that the normalizing liquid of the high-carbon alloy steel of the present invention mainly improves the strong of high-carbon alloy steel
Degree, solves exceeded problem of the big specification sectional dimension in more than 60mm net carbides.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
It using the aqueous solution mass concentration of normalizing liquid is 10% and the cooling curve comparison diagram of water and quenching oil that Fig. 1, which is,；
It using the aqueous solution mass concentration of normalizing liquid is 12% and the cooling curve comparison diagram of water and quenching oil that Fig. 2, which is,；
It using the aqueous solution mass concentration of normalizing liquid is 15% and the cooling curve comparison diagram of water and quenching oil that Fig. 3, which is,；
Fig. 4 is embodiment one by GB/T18254-2016 standard detection carbide network levels effect figures；
Fig. 5 is embodiment two by GB/T18254-2016 standard detection carbide network levels effect figures；
Fig. 6 is embodiment three by GB/T18254-2016 standard detection carbide network levels effect figures；
Embodiment
Embodiment one：
Bearing steel ball GCr15 materials cool down in sectional dimension in 80mm normalizing, and the stoste of normalizing liquid is entered by formula as below
Row is prepared：50 parts of base oil, polyacrylic acid PAAS1 parts, appropriate 5 parts of youngster's fatty acid oil, 5 parts of hydramine, AEO 5
Part, 3 parts of petroleum sodium sulfonate, 1 part of bactericide, 0.1 part of defoamer, surplus is water.It is using the aqueous solution mass concentration of normalizing liquid
10% contrasts with the cooling curve of water and quenching oil.As shown in Figure 1：
300 DEG C of cooling velocities are respectively：10% 74 DEG C/s of normalizing liquid, 86 DEG C/s of water, 5 DEG C/s of quenching oil.
Use rear effect such as Fig. 4：Bearing steel ball GCr15 materials are incubated in sectional dimension in 80mm 950 DEG C of normalizing temperature
60min quenches after normalizing liquid, is 2.5 grades by GB/T18254-2016 standard detection carbide networks rank.
Embodiment two：
Bearing steel ball GCr15 materials cool down in sectional dimension in 80mm normalizing, and the stoste of normalizing liquid is entered by formula as below
Row is prepared：55 parts of base oil, polyacrylic acid PAAS1.5 parts, appropriate 7 parts of youngster's fatty acid oil, 8 parts of hydramine, AEO
6.5 parts, 4 parts of petroleum sodium sulfonate, 1.5 parts of bactericide, 0.2 part of defoamer, surplus is water.It is dense using the aqueous solution quality of normalizing liquid
Spend and contrasted for 10% and the cooling curve of water and quenching oil.As shown in Figure 2：
300 DEG C of cooling velocities are respectively：12% 72 DEG C/s of normalizing liquid, 86 DEG C/s of water, 5 DEG C/s of quenching oil.
Use rear effect such as Fig. 5：Bearing steel ball GCr15 materials are incubated in sectional dimension in 70mm 930 DEG C of normalizing temperature
80min quenches after normalizing liquid, is 2 grades by GB/T18254-2016 standard detection carbide networks rank.
Embodiment three：
Bearing steel ball GCr15 materials cool down in sectional dimension in 80mm normalizing, and the stoste of normalizing liquid is entered by formula as below
Row is prepared：60 parts of base oil, polyacrylic acid PAAS3 parts, appropriate 10 parts of youngster's fatty acid oil, 10 parts of hydramine, AEO 8
Part, 5 parts of petroleum sodium sulfonate, 2 parts of bactericide, 0.5 part of defoamer, surplus is water.It is using the aqueous solution mass concentration of normalizing liquid
15% contrasts with the cooling curve of water and quenching oil.As shown in Figure 3：
300 DEG C of cooling velocities are respectively：15% 68 DEG C/s of normalizing liquid, 84 DEG C/s of water, 5 DEG C/s of quenching oil.
Use rear effect such as Fig. 6：Bearing steel ball GCr15 materials are incubated in sectional dimension in 80mm 950 DEG C of normalizing temperature
60min quenches after normalizing liquid, is 2 grades by GB/T18254-2016 standard detection carbide networks rank.
It is described above to be merely exemplary for the purpose of the present invention, and it is nonrestrictive, and those of ordinary skill in the art understand,
In the case where not departing from the spirit and scope that appended claims are limited, many modifications, change or equivalent can be made, but all
It will fall within the scope of protection of the present invention.
Claims (5)
1. a kind of normalizing liquid of high-carbon alloy steel, it is characterized in that, the normalizing liquid of every 100 parts by weight includes the group of following weight parts
Point：50~60 parts of base oil, polyacrylic acid PAAS1~3 part, appropriate 5~10 parts of youngster's fatty acid oil, 5~10 parts of hydramine, poly alkyl alcohol
Oxygen vinethene 5~8,3~5 parts of petroleum sodium sulfonate, 1~2 part of bactericide, 0.1~0.5 part of defoamer, surplus is water.
2. a kind of method for the normalizing liquid for preparing the high-carbon alloy steel described in claim 1, it is characterized in that, this method includes following
Step：
Step 1：By in 50~60 parts of addition reactors of base oil；
Step 2：Base oil in reactor is heated, is heated to 40~60 DEG C；
Step 3：Add 5~10 parts of the appropriate youngster's fatty acid oil in polyacrylic acid PAAS1~3 part, 5~10 parts of hydramine, fatty alcohol polyoxy
5~8 parts of vinethene, 3~5 parts of petroleum sodium sulfonate, 1~2 part of bactericide, 0.1~0.5 part of defoamer, surplus are water, keeping temperature
At 40~60 DEG C；
Step 4：Agitated 1~2 hour of material in reactor, then it is filtrated to get the normalizing liquid of high-carbon alloy steel.
3. a kind of cooling technique of the normalizing liquid of high-carbon alloy steel according to claim 1, it is characterized in that, high-carbon alloy steel
After hot forging terminates, it is directly immersed in normalizing liquid and cools down.
4. a kind of cooling technique of the normalizing liquid of high-carbon alloy steel according to claim 1, it is characterized in that, the normalizing liquid
Aqueous solution mass concentration be 10-15%, cooling rate is controlled in 65-75 DEG C/S.
5. a kind of cooling technique of the normalizing liquid of high-carbon alloy steel according to claim 1, it is characterized in that, the normalizing liquid
Cooling rate is slower than the cooling rate of water, and the cooling rate than quenching oil is fast, to reach the requirement of control carbide.
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| CN201710645464.1A CN107674947B (en) | 2017-08-01 | 2017-08-01 | A kind of normalizing liquid of high-carbon alloy steel, preparation method and high-carbon alloy steel normalizing cooling technique |
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Citations (4)
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|---|---|---|---|---|
| CN1827823A (en) * | 2006-04-13 | 2006-09-06 | 李宁 | High-carbon alloy steel wearable steel ball and production method thereof |
| CN101947630A (en) * | 2010-09-17 | 2011-01-19 | 洛阳轴研科技股份有限公司 | Controlled-forging controlled-cooling processing technology of bearing ring prepared by GCr15 |
| CN102839038A (en) * | 2012-09-13 | 2012-12-26 | 济南库伦特科技有限公司 | Additive composition for producing emulsified oil, preparation method of additive composition and application of additive composition |
| CN106190479A (en) * | 2016-07-13 | 2016-12-07 | 天长市润达金属防锈助剂有限公司 | The magnesium alloy cutting fluid that a kind of low bubble cooling performance is good |
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2017
- 2017-08-01 CN CN201710645464.1A patent/CN107674947B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1827823A (en) * | 2006-04-13 | 2006-09-06 | 李宁 | High-carbon alloy steel wearable steel ball and production method thereof |
| CN101947630A (en) * | 2010-09-17 | 2011-01-19 | 洛阳轴研科技股份有限公司 | Controlled-forging controlled-cooling processing technology of bearing ring prepared by GCr15 |
| CN102839038A (en) * | 2012-09-13 | 2012-12-26 | 济南库伦特科技有限公司 | Additive composition for producing emulsified oil, preparation method of additive composition and application of additive composition |
| CN106190479A (en) * | 2016-07-13 | 2016-12-07 | 天长市润达金属防锈助剂有限公司 | The magnesium alloy cutting fluid that a kind of low bubble cooling performance is good |
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| D.克拉曼主编: "《润滑剂及其有关产品》", 31 July 1990, 烃加工出版社 * |
| 韦军主编: "《高分子合成工艺学》", 28 February 2011, 华东理工大学出版社 * |
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Address after: 213100 No. 16 Huafeng Road, Dingyan Street, Wujin District, Changzhou City, Jiangsu Province Patentee after: Changzhou Longbang Lubrication Technology Co.,Ltd. Address before: 213000 No. 16 Huafeng Road, Ding Yan Street, Wujin District, Jiangsu, Changzhou Patentee before: CHANGZHOU LONGPONT LUBRICANTS Co.,Ltd. |
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Effective date of registration: 20230712 Address after: 231300 Fengdun Village School, Shucheng County Economic and Technological Development Zone, Lu'an City, Anhui Province Patentee after: Geng Wei Address before: 213100 No.16, Huafeng Road, Dingyan street, Wujin District, Changzhou City, Jiangsu Province Patentee before: Changzhou Longbang Lubrication Technology Co.,Ltd. |