CN1042952A - Low-temperature evaporation method sulfurizing technology - Google Patents
Low-temperature evaporation method sulfurizing technology Download PDFInfo
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- CN1042952A CN1042952A CN 88109010 CN88109010A CN1042952A CN 1042952 A CN1042952 A CN 1042952A CN 88109010 CN88109010 CN 88109010 CN 88109010 A CN88109010 A CN 88109010A CN 1042952 A CN1042952 A CN 1042952A
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- sulfurizing
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Abstract
The invention belongs to hot chemical treatment of metal surface.
The present invention promptly is a kind of low-temperature evaporation method sulfurizing technology, and penetration enhancer is simple industrial sulphur, and under normal pressure, between 280 ℃-300 ℃, insulation was not less than 2 hours, can finish the sulfurizing process.It is little to have one-time investment, and equipment is not had harsh requirement, and simple to operate, infiltration rate is fast, advantages such as constant product quality.Rapid steel wheel cutter after sulfurizing or other similar cutter can improve 0.5-4 work-ing life doubly, and the surfaceness of workpiece to be machined are significantly improved.
Description
The invention belongs to hot chemical treatment of metal surface.
For wear resistance and the bite-resistant ability that improves part, all piece surface is handled both at home and abroad in exploration.Well-known sulfurizing is handled, and can obviously reduce the frictional coefficient between the surface of friction, reaches the wear resistance and the bite-resistant ability that improve part.In recent years, gas sulfurizing method and the glow ion sulfurizing method of domestic many employings in pit furnace carried out multiple permeations such as binary, ternary.Defectives such as the sulfurizing method is still wayward because of complex process, quality merely, and facility investment is big, and fail extensively to be promoted the use of.It is reported that the technology of at present simple sulfurizing has: low-temperature electrolytic sulfurizing method; Vacuum sulfur vapor sulfurizing method etc.Vacuum sulfur vapor THROUGH METHOD and the present invention have similar part, and the sulfurizing process all is to carry out in gas sulphur.But this method is higher to equipment requirements, and one-time investment is big, and operation is also complicated, therefore fails extensively to be used.The present invention at the shortcoming of simple sulfurizing method, has proposed the method for sulfurizing in low temperature, normal pressure, gas phase sulfur after analyzing existing simple sulfurizing technology.Present method has obtained effect preferably through overtesting.
Synoptic diagram of the present invention:
Cutter (part) → degreasing, oxide film and the decon → cleaning → drying → sulfurizing → cooling → immersion oil of coming out of the stove → finished product.
(1) cutter degreasing, oxide film and go a matter, treatment process can adopt ordinary method.The present invention selects disposable facture for use, and used prescription is made up of sulfuric acid, thiocarbamide, Sodium dodecylbenzene sulfonate.By handling, the metallic surface is in active condition, is beneficial to oozing the Ji medium to contact, and produces chemical combination and osmosis.
(2) clean, the cutter after impurity elimination is handled must wash with clear water, can spray tap water flushing 2～5 minutes, and then use ethanol dehydration, does not leave the treatment solution vestiges on cutter.
(3) drying is used hot blast drying.
(4) sulfurizing, sulfurizing agent are industrial sulphur; Sulfurizing equipment, casing is made in the weldering of available general steel plate, its heating installation can select for use be similar to baking oven or select for use with electrically heated Equipment for Heating Processing.
The sulfurizing technology process: the sulfurizing process is carried out under normal pressure, penetration enhancer and part placed in the casing, and the case lid do sealing relatively of closing, then this casing is put into heating installation.After above-mentioned work is ready to, begin to heat, sulfurizing temperature can be between 160 ℃-350 ℃, and insulation for some time, and the best is between 280 ℃-300 ℃, and insulation was not less than 2 hours.
(5) cooling of coming out of the stove carries away heating installation with whole box body, naturally cools to room temperature.
(6) immersion oil will be chilled to the cutter of room temperature after the sulfurizing, immerse in the machine oil, and with oily temperature rise to 120 ℃-160 ℃, be incubated 10 minutes and get final product.
This sulfurizing technology does not have harsh requirement to equipment, can utilize existing installation (comprising the laboratory, pilot plant unit), one-time investment is little, and it is fast also to have an infiltration rate, simple operation and other advantages, be applicable to the production of different scales, tried out constant product quality in several years through the our factory.Rapid steel wheel cutter after sulfurizing or other similar cutter can improve 0.5-4 work-ing life doubly, and the surfaceness of workpiece to be machined is significantly improved, and economical, societal benefits are obvious, have popularizing value widely.
Claims (2)
1, a kind of method of evaporation sulfurizing technology is characterised in that the sulfurizing process carries out under normal pressure, the temperature of sulfurizing can be between 160 ℃-350 ℃, and insulation for some time, and the best is between 280 ℃-300 ℃, and insulation was not less than 2 hours.
2,, be characterised in that penetration enhancer is simple sulphur according to the described a kind of method of evaporation sulfurizing technology of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88109010 CN1042952A (en) | 1988-09-29 | 1988-09-29 | Low-temperature evaporation method sulfurizing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88109010 CN1042952A (en) | 1988-09-29 | 1988-09-29 | Low-temperature evaporation method sulfurizing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1042952A true CN1042952A (en) | 1990-06-13 |
Family
ID=4835305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88109010 Pending CN1042952A (en) | 1988-09-29 | 1988-09-29 | Low-temperature evaporation method sulfurizing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1042952A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077667A (en) * | 2016-08-09 | 2016-11-09 | 浙江经宇科技发展有限公司 | Ferrous based powder metallurgical is high temperature resistant not oiliness bearing and manufacture method thereof |
| WO2019210590A1 (en) * | 2018-05-04 | 2019-11-07 | 山东大学 | Surface layer alloying weakening treatment and auxiliary processing method for efficient cutting of difficult-to-process material |
-
1988
- 1988-09-29 CN CN 88109010 patent/CN1042952A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077667A (en) * | 2016-08-09 | 2016-11-09 | 浙江经宇科技发展有限公司 | Ferrous based powder metallurgical is high temperature resistant not oiliness bearing and manufacture method thereof |
| CN106077667B (en) * | 2016-08-09 | 2018-06-15 | 浙江经宇科技发展有限公司 | Ferrous based powder metallurgical high temperature resistant not oiliness bearing and its manufacturing method |
| WO2019210590A1 (en) * | 2018-05-04 | 2019-11-07 | 山东大学 | Surface layer alloying weakening treatment and auxiliary processing method for efficient cutting of difficult-to-process material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |