CN1966767A - Blueing anti-rust treatment process for chamfer and capped edge of bearing ring - Google Patents
Blueing anti-rust treatment process for chamfer and capped edge of bearing ring Download PDFInfo
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- CN1966767A CN1966767A CN 200610049405 CN200610049405A CN1966767A CN 1966767 A CN1966767 A CN 1966767A CN 200610049405 CN200610049405 CN 200610049405 CN 200610049405 A CN200610049405 A CN 200610049405A CN 1966767 A CN1966767 A CN 1966767A
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Abstract
The invention discloses a method for bluing and rust prevention bearing ring edge rounding and retaining side. The method contains: heat-treating the bearing ring, degreasing, defating, discoloring in the mixed solution of natrium hydroxydatum, sodium nitrite, sodium nitrate and water (15:3-5:1:20) at 120DEG C-135DEG C for 15-25min, taking out the bearing ring, washing with clear water, passivating with bichromicum kalium solution 12%-18% as the filling liquid at room temperature or 1-2min, drying, putting into the 105DEG C-120DEG C engine oil or rust preventive oil for 1-3min, taking out till bubble disappears completely, standing for 10-15, and detecting. The oxide film is stable and can protect bearing ring edge rounding and retaining side from rusting for a long time, and improve the appearance quality of the shaft bearing obviously.
Description
Technical field
The present invention relates to a kind of bearing surface chemical treatment technology, relate in particular to a kind of bearing ring anti-corrosion treatment process that turns blue.
Background technology
The employing anti-corrosion treatment process that turns blue is used commonplacely in mechanical industry, but because the process time is long, reasons such as energy consumption height are not suitable for using on bearing.Bearing ring that prior art produces is all residual after thermal treatment uneven oxide skin and adopt, have a strong impact on the visual appearance of bearing, and easily get rusty depositing with use centre rib place, oxide compound causes bearing failure after falling into ball track, and domestic bearing industry does not have enough attention to this problem yet.
Summary of the invention
The present invention solves the existing visual appearance of prior art and is depositing the easy problem of rustiness with use centre rib place, thereby seeks a kind ofly not only can solve the problem of appearance of bearing but also can improve the bearing ring chamfering in work-ing life of bearing and the anti-corrosion treatment process that turns blue of rib.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: the anti-corrosion treatment process that turns blue of a kind of bearing ring chamfering and rib, bearing ring after thermal treatment through the oil removing degreasing, it is characterized in that: carry out variable color then and handle, described variable color treatment solution is the mixing solutions of sodium hydroxide, Sodium Nitrite, SODIUMNITRATE and water, its proportioning, by weight: sodium hydroxide: Sodium Nitrite: SODIUMNITRATE: water is 15: 3-5: 1: 20 ratio; 120 ℃-135 ℃ of temperature; Time 15-25 minute; Take out lasso and carry out Passivation Treatment after with flushing with clean water, as filling liquid, its concentration is mass volume ratio 12%-18% to Passivation Treatment with potassium bichromate solution; At room temperature 1-2 minute.
What work in the variable color treatment soln has only two of sodium hydroxide and Sodium Nitrites, and SODIUMNITRATE has been a ligation.Can be understood as in the 20 gram water to have 3-5 gram Sodium Nitrite, and the sodium hydroxide in the 20 gram water and the ratio of SODIUMNITRATE are definite values, is respectively 15 grams and 1 gram.
Bearing ring begins to spread towards periphery the thick blue oxide film of generation 1～2u from the little chamfering of internal stress, and colour-change is: yellow → orange → redness → red-purple → purple → blueness.Determine according to the size of lasso action time, so as long as reach final purpose to the time without limits.
The purpose of carrying out Passivation Treatment is to utilize the strong oxidizing property of potassium bichromate to carry out passivation to metal, effectively protects blue film, fills the loose hole of oxide film.
Above-mentioned technical problem of the present invention can also be further perfect, and as preferably, sodium hydroxide and Sodium Nitrite are by weight being 3-5 in the mixing solutions: 1.
As preferably, after Passivation Treatment and drying, put into 105 ℃-120 ℃ machine oil or slushing oil 1-3 minute, to the bubble completely dissolve, take out, park check after 1O-15 minute.
Keep under the room temperature can reaching the aftertreatment requirement in 1～3 minute, the time prolongs result is not changed.Putting into the machine oil immersion after the drying is for the better protection blue film, is guaranteeing can to save this technology under the dry situation.
Degreasing fluid is a prior art, and general composition is NaOH: NaCO
3: SiCO
3: H
2O, its weight proportion NaOH: NaCO
3: SiCO
3: H
2O, it is 5: 4: 1: 90, wherein the water glass composition can remove, other two compositions play a leading role, sodium hydroxide: the yellow soda ash ratio control is 5: if sodium hydroxide quantity not sufficient or excessive between the 3-5, then lasso can not change temperature in follow-up variable color is handled: 95 ℃-105 ℃, and time: 5-6 minute.
Therefore; beneficial effect of the present invention is: lasso is through antirust sull (Z 250) stable performance that the back generates of handling of turning blue; can protect ring chamfer, rib place non-corrosive at normal temperatures for a long time; prolong turn around time; in grinding process, cooling fluid, grinding fluid, aqueous rust preventive, slushing oil are not exerted an influence; the visual appearance of bearing is obviously improved, because the inhibited oxidation thing enters ball track, has improved the work-ing life of bearing.The present invention can also save for 1/4th treatment time, directly cuts down the consumption of energy 1/4th, has improved production efficiency.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment:
To handle 6203 bearing outer rings is example,
The blue film quality
1. variable color solution configuration proportion is sodium hydroxide, Sodium Nitrite, SODIUMNITRATE and water 15: 3: 1: 20, and treatment temp is 120 ℃, and finishing dealing with needs 25 minutes, and the blue film quality is good;
2. variable color solution configuration proportion is sodium hydroxide, Sodium Nitrite, SODIUMNITRATE and water 15: 4: 1: 20, and treatment temp is 130 ℃, and finishing dealing with needs 15 minutes, and the blue film quality is good;
3. variable color solution configuration proportion is sodium hydroxide, Sodium Nitrite, SODIUMNITRATE and water 15: 5: 1: 20, and treatment temp is 135 ℃, and finishing dealing with needs 20 minutes, and the blue film quality is good.
With the blue film lasso of handling well, add concentration respectively and be 12%, 15%, 18% potassium bichromate solution and carry out Passivation Treatment, put the salt fog cabinet test then into, find rusty stains to 13 talentes.And be that the lasso that 8% potassium bichromate solution carries out Passivation Treatment just begins after 7 days to get rusty through concentration.
Claims (3)
1. the anti-corrosion treatment process that turns blue of bearing ring chamfering and rib, bearing ring after thermal treatment through the oil removing degreasing, it is characterized in that: carry out variable color then and handle, described variable color treatment solution is the mixing solutions of sodium hydroxide, Sodium Nitrite, SODIUMNITRATE and water, its proportioning, by weight: sodium hydroxide: Sodium Nitrite: SODIUMNITRATE: water is 15: 3-5: 1: 20 ratio; 120 ℃-135 ℃ of temperature; Time 15-25 minute; Take out lasso and carry out Passivation Treatment after with flushing with clean water, Passivation Treatment with potassium bichromate solution as filling liquid; Its concentration is mass volume ratio 12%-18%; At room temperature 1-2 minute.
2. the anti-corrosion treatment process that turns blue of bearing ring chamfering according to claim 1 and rib is characterized in that: sodium hydroxide and Sodium Nitrite are by weight being 3-5 in the mixing solutions: 1.
3. the anti-corrosion treatment process that turns blue of bearing ring chamfering according to claim 1 and 2 and rib, it is characterized in that: after Passivation Treatment and drying, put into 105 ℃-120 ℃ machine oil or slushing oil 1-3 minute, to the bubble completely dissolve, take out, park check after 10-15 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610049405 CN1966767A (en) | 2006-02-09 | 2006-02-09 | Blueing anti-rust treatment process for chamfer and capped edge of bearing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610049405 CN1966767A (en) | 2006-02-09 | 2006-02-09 | Blueing anti-rust treatment process for chamfer and capped edge of bearing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1966767A true CN1966767A (en) | 2007-05-23 |
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| CN 200610049405 Pending CN1966767A (en) | 2006-02-09 | 2006-02-09 | Blueing anti-rust treatment process for chamfer and capped edge of bearing ring |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892481A (en) * | 2010-06-25 | 2010-11-24 | 江苏苏新轴座有限公司 | Insert bearing antirust process |
| CN102304848A (en) * | 2011-08-25 | 2012-01-04 | 武汉元丰摩擦材料有限公司 | Rust prevention method for steel fibers |
| CN103352217A (en) * | 2013-06-21 | 2013-10-16 | 安徽省六安市朝晖机械制造有限公司 | Surface bluing anti-rust treatment process for workpiece |
| CN103510083A (en) * | 2013-09-17 | 2014-01-15 | 马鞍山市益华液压机具有限公司 | Surface blackening and rust prevention treatment method for metal part |
| CN103668227A (en) * | 2012-09-03 | 2014-03-26 | Skf公司 | Method for treating a bearing component |
| CN103866313A (en) * | 2012-12-14 | 2014-06-18 | 上海郎特汽车净化器有限公司 | Bluing liquid |
| CN105350405A (en) * | 2015-11-20 | 2016-02-24 | 李�远 | Railway track bolt and nut and machining technology of stop ring in bolt and nut |
| CN105349987A (en) * | 2015-10-11 | 2016-02-24 | 南昌江晶贸易有限公司 | Geothermal forced-pressure process for improving metal radiation resistance |
| CN108505028A (en) * | 2018-04-18 | 2018-09-07 | 扬州新棱机械制造有限公司 | Titanium alloy sunk head rivet process of surface treatment |
| CN109411175A (en) * | 2018-12-19 | 2019-03-01 | 合肥博微田村电气有限公司 | A kind of inductance of high magnetic permeability soft magnetic powder production method and soft magnetic powder |
| CN111094776A (en) * | 2017-09-19 | 2020-05-01 | 舍弗勒技术股份两合公司 | Method for manufacturing a bearing component and bearing component |
| CN112024799A (en) * | 2020-08-27 | 2020-12-04 | 成都阿泰克特种石墨有限公司 | Automobile electronic water pump bearing machining method |
-
2006
- 2006-02-09 CN CN 200610049405 patent/CN1966767A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892481A (en) * | 2010-06-25 | 2010-11-24 | 江苏苏新轴座有限公司 | Insert bearing antirust process |
| CN102304848A (en) * | 2011-08-25 | 2012-01-04 | 武汉元丰摩擦材料有限公司 | Rust prevention method for steel fibers |
| CN102304848B (en) * | 2011-08-25 | 2013-01-09 | 武汉元丰摩擦材料有限公司 | Rust prevention method for steel fibers |
| CN103668227A (en) * | 2012-09-03 | 2014-03-26 | Skf公司 | Method for treating a bearing component |
| CN103866313A (en) * | 2012-12-14 | 2014-06-18 | 上海郎特汽车净化器有限公司 | Bluing liquid |
| CN103352217B (en) * | 2013-06-21 | 2016-01-20 | 安徽省六安市朝晖机械制造有限公司 | Turn blue anti-corrosion treatment process for a kind of surface of workpiece |
| CN103352217A (en) * | 2013-06-21 | 2013-10-16 | 安徽省六安市朝晖机械制造有限公司 | Surface bluing anti-rust treatment process for workpiece |
| CN103510083B (en) * | 2013-09-17 | 2016-02-24 | 马鞍山市益华液压机具有限公司 | A kind of metal parts surface blackening antirusting treating method |
| CN103510083A (en) * | 2013-09-17 | 2014-01-15 | 马鞍山市益华液压机具有限公司 | Surface blackening and rust prevention treatment method for metal part |
| CN105349987A (en) * | 2015-10-11 | 2016-02-24 | 南昌江晶贸易有限公司 | Geothermal forced-pressure process for improving metal radiation resistance |
| CN105350405A (en) * | 2015-11-20 | 2016-02-24 | 李�远 | Railway track bolt and nut and machining technology of stop ring in bolt and nut |
| CN111094776A (en) * | 2017-09-19 | 2020-05-01 | 舍弗勒技术股份两合公司 | Method for manufacturing a bearing component and bearing component |
| CN111094776B (en) * | 2017-09-19 | 2021-10-26 | 舍弗勒技术股份两合公司 | Method for manufacturing a bearing component and bearing component |
| US11253906B2 (en) | 2017-09-19 | 2022-02-22 | Schaeffler Technologies AG & Co. KG | Method for producing a bearing component, and bearing component |
| CN108505028A (en) * | 2018-04-18 | 2018-09-07 | 扬州新棱机械制造有限公司 | Titanium alloy sunk head rivet process of surface treatment |
| CN109411175A (en) * | 2018-12-19 | 2019-03-01 | 合肥博微田村电气有限公司 | A kind of inductance of high magnetic permeability soft magnetic powder production method and soft magnetic powder |
| CN112024799A (en) * | 2020-08-27 | 2020-12-04 | 成都阿泰克特种石墨有限公司 | Automobile electronic water pump bearing machining method |
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