CN208562500U - A kind of high-speed steel tool Strengthening and Toughening processing unit - Google Patents
A kind of high-speed steel tool Strengthening and Toughening processing unit Download PDFInfo
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- CN208562500U CN208562500U CN201820696324.7U CN201820696324U CN208562500U CN 208562500 U CN208562500 U CN 208562500U CN 201820696324 U CN201820696324 U CN 201820696324U CN 208562500 U CN208562500 U CN 208562500U
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- nitridation
- strengthening
- speed steel
- oxidizing chamber
- burnishing device
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Abstract
The utility model belongs to tooling cost field, discloses a kind of high-speed steel tool Strengthening and Toughening processing unit, is provided with nitridation room, oxidizing chamber and burnishing device；Nitridation chamber portion is provided with nitridation slot；Oxidizing chamber is internally provided with oxidation trough；Oxidizing chamber and nitridation room two sides respectively offer opening；Burnishing device is provided with polishing clamp, and bolt has polishing runner on the inside of polishing clamp, and nitridation room, oxidizing chamber are connected with burnishing device by transmission chain, and tool mounting is provided on transmission chain.The utility model improves traditional QPQ, forms circulation QPQ technology, the depth of nitration case can be improved, improve nitriding speed, the content of nitriding layer brittlement phase is reduced, to improve the Strengthening and Toughening performance of workpiece.
Description
Technical field
The utility model belongs to tooling cost field more particularly to a kind of high-speed steel tool Strengthening and Toughening processing unit.
Background technique
Currently, the prior art commonly used in the trade is such thatThe conventional method of cutter Strengthening and Toughening processing, generally by tune
Whole high speed steel heat treatment process, the form for improving carbide are realized with distribution.As University of Science & Technology, Beijing all bodies and et al. mention
Vacuum heat treatment technology is used out, is obtained small grains tissue, is improved the obdurability of high speed steel M2 Al.Coating technology is also to mention
One of the effective ways of high cutter Strengthening and Toughening performance form very thin coating in tool surface using PVD and CVD technology, this
A little coatings have high rigidity, good heat resistance and thermal insulation, in addition the higher matrix of internal toughness, is provided with cutter tough
Change characteristic.Such as Wu great Wei cvd nitride on high-speed steel using the method that DC reaction magnetocontrol sputtering and arc ion plating combine
Carbon-nitridation titanium compound film, greatly improved cutter hardness and wear-resisting property, so that cutter be made to have outer strong interior tough characteristic.Separately
Outside, laser reinforcing technology is also one of the major processes of high-speed steel tool Strengthening and Toughening processing.The technique is mainly using sharp
Optical energy density is high, and heating speed and cooling velocity fast characteristic refine the austenite grain in high-speed steel, tool matrix
The toughness of material increases, while a large amount of carbide carbon compounds dissolve in austenite, make carbon and alloy in subsequent martensite
Constituent content increases, so that the hardness of cutter, wearability and red hardness be made to be obviously improved.Such as Chen Chunhuan has studied M2 high-speed steel
Laser-quenching technique obtain martensite and the retained austenite of transgranular refinement after laser surface hardening, carbide subtracts
Few, hardness is significantly improved, and then also improves wearability and service life.Green processing technologies are Modern Manufacturing Technology hairs
One main trend of exhibition.Requirement of the green processing technologies to cutter be high cutting speed, high-precision, the long-life and it is good can
By property.High-speed steel is since 1900 emerge, due to its high rigidity, high-wearing feature, good thermal stability and red hardness, and
Lower cost is constantly in the leading position of cutter material.But with the appearance of modernization processing technology, high-speed steelknife
What the deficiencies of wear-out failure of tool, tipping destruction, short life, poor efficiency was more and more obvious displays.Therefore, it is necessary to high speed
Steel cutter carries out Strengthening and Toughening processing, improves the hardness of high-speed steel tool, enhances its obdurability, to extend the longevity of high-speed steel tool
Life.But lack the equipment that a kind of pair of high-speed steel tool carries out Strengthening and Toughening processing.
In conclusion problem of the existing technology is:Grain refining is carried out by vacuum heat treatment technology in the above method
The obdurability of cutter can be enhanced in processing, but time length, equipment are expensive, higher cost；And PVD and CVD method is used to be applied
Layer, coating and binding force are an emerging problems, and in addition equipment is expensive, are not easy to promote；The methods of laser heat treatment,
It is that equipment cost is higher, and is not easy to realize batch processing, is also not suitable for large-scale promotion；Conventional nitrogen treatment, the time is long and locates
There is hard crisp layer on surface layer after reason, influences the service life.Therefore lack the Strengthening and Toughening processing that a kind of pair of high-speed steel tool can be processed in batches
Equipment.
Lack the equipment that a kind of pair of high-speed steel tool carries out Strengthening and Toughening processing.
Solve the difficulty and meaning of above-mentioned technical problem:
The difficulty of the technology is to design by equipment, realizes nitridation ageing treatment, has not only improved intensity hardness, but also reduce
Brittleness shortens processing time.Meaning is that cutter material can be made to have high rigidity, high temper resistance, high heat resistanceheat resistant
Impact property improves the wear-resisting property of cutter, it is contemplated that improves 6-8 times or more than untreated cutter wearability, makes the longevity of cutter
Life extends 5 times or more；Technique is carried out on the basis of conventional tool, can directly be handled original cutter, both
The time is saved, and saves cost, therefore there is very strong economic benefit.
High-speed dry cutting green processing technologies are the following mach Main Trends of The Development, and the research of the project can promote
The development of green processing technologies, therefore there is certain social effect at environmentally protective aspect.
Summary of the invention
In view of the problems of the existing technology, the utility model provides a kind of high-speed steel tool Strengthening and Toughening processing unit.
The device can realize nitridation-timeliness circulation, to reduce the brittleness of nitridation, and shorten nitridation time, reduce cost.
The utility model is realized in this way a kind of high-speed steel tool Strengthening and Toughening processing unit, is provided with nitridation room, oxidation
Room and burnishing device；
Nitridation chamber portion is provided with nitridation slot；
Oxidizing chamber is internally provided with oxidation trough；
Oxidizing chamber and nitridation room two sides respectively offer opening；
Burnishing device is provided with polishing clamp, and bolt has polishing runner on the inside of polishing clamp.
Further, nitridation room, oxidizing chamber are connected with burnishing device by transmission chain, and tool-holder is provided on transmission chain
Tool.
Further, it nitrogenizes in slot and is contained with certain CNO-The salt bath solution of concentration is contained with oxidation salt bath in oxidation trough
Solution.
In conclusion the advantages of the utility model and good effect are as follows:
It can make cutter material that there is high rigidity, high temper resistance, high thermal shock resistance makes the wearability of cutter
It can improve, it is contemplated that improve 6-8 times or more than untreated cutter wearability, the service life extends 5 times.
The utility model improves traditional QPQ, forms circulation QPQ technology, is that tests determined nitride layer, white layer goes out first
Existing critical nitridation time terminates nitridation before nitride layer, white layer brittlement phase occurs, is then cooled to oxidizing temperature and is aoxidized, favorably
Nitriding velocity is improved when subsequent cycle.In addition, subsequent be processed by shot blasting, the Nitriding porosity layer of workpiece surface can be removed,
It is also beneficial to subsequent cycle nitrogen treatment.In short, the depth of nitration case can be improved in circulation QPQ technology, nitriding speed, drop are improved
The content of hypotonic nitrogen layer brittlement phase, to improve the Strengthening and Toughening performance of workpiece.
Detailed description of the invention
Fig. 1 is high-speed steel tool Strengthening and Toughening processing device structure diagram provided by the embodiment of the utility model；
In figure: 1, nitrogenizing room；2, oxidizing chamber；3, polishing clamp；4, runner is polished；5, it is open；6, transmission chain；7, cutter
Fixture；8, slot is nitrogenized；9, oxidation trough.
Specific embodiment
For the invention, features and effects that can further appreciate that the utility model, the following examples are hereby given, and cooperates
Detailed description are as follows for attached drawing.
As shown in Figure 1, high-speed steel tool Strengthening and Toughening processing unit provided by the embodiment of the utility model include nitridation room 1,
Oxidizing chamber 2, polishing clamp 3, polishing runner 4, opening 5, transmission chain 6, tool mounting 7, nitridation slot 8, oxidation trough 9.
Nitridation room 1 is internally provided with nitridation slot 8；Oxidizing chamber 2 is internally provided with oxidation trough 9；Oxidizing chamber 2 and 1 liang of room of nitridation
Side respectively offers opening 5；Burnishing device is provided with polishing clamp 3, and there is bolt on the inside of polishing clamp 3 polishes runner 4, nitridation room 1,
Oxidizing chamber 2 and burnishing device are connected by transmission chain 6, and tool mounting 7 is provided on transmission chain 6.
As a preferred embodiment, the salt bath solution for being contained with certain CNO- concentration in slot 8 is nitrogenized, is held in oxidation trough 9
There is saline oxide to bathe solution.
As a preferred embodiment, nitridation room temperature is 500-630 DEG C, and oxidation room temperature is 400 --- 450 DEG C.
The utility model improves traditional QPQ, forms circulation QPQ technology, is that tests determined nitride layer, white layer goes out first
Existing critical nitridation time, nitride layer, white layer brittlement phase occur before terminate nitridation, be then cooled to oxidizing temperature because oxidation be
It is carried out in oxidation salt bath, is enriched in the N atom on surface layer since the presence of surface layer and internal nitrogen gesture continues inwardly diffusion, to make table
Layer nitrogen concentration decline is equivalent to promptly to push over " wall " (such as ε phase) that hinders subsequent nitrogen-atoms to spread to inside workpiece and (divide
Solution), it is easier to nitrogen-atoms diffusion comparatively fast, is conducive to improve nitriding velocity when subsequent cycle.In addition, subsequent be processed by shot blasting,
The Nitriding porosity layer of workpiece surface can be removed, be also beneficial to subsequent cycle nitrogen treatment.In short, circulation QPQ technology can mention
The depth of high nitration case improves nitriding speed, the content of nitriding layer brittlement phase is reduced, to improve the Strengthening and Toughening performance of workpiece.
The above is only the preferred embodiment to the utility model, is not made in any form to the utility model
Limitation, it is all according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations with
Modification, is all within the scope of the technical scheme of the utility model.
Claims (1)
1. a kind of high-speed steel tool Strengthening and Toughening processing unit, which is characterized in that the high-speed steel tool Strengthening and Toughening processing unit is set
It is equipped with nitridation room, oxidizing chamber and burnishing device；
Nitridation chamber portion is provided with nitridation slot；
Oxidizing chamber is internally provided with oxidation trough；
Oxidizing chamber and nitridation room two sides respectively offer opening；
Burnishing device is provided with polishing clamp, and bolt has polishing runner on the inside of polishing clamp；
Nitridation room, oxidizing chamber are connected with burnishing device by transmission chain, and tool mounting is provided on transmission chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820696324.7U CN208562500U (en) | 2018-05-11 | 2018-05-11 | A kind of high-speed steel tool Strengthening and Toughening processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820696324.7U CN208562500U (en) | 2018-05-11 | 2018-05-11 | A kind of high-speed steel tool Strengthening and Toughening processing unit |
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| Publication Number | Publication Date |
|---|---|
| CN208562500U true CN208562500U (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820696324.7U Expired - Fee Related CN208562500U (en) | 2018-05-11 | 2018-05-11 | A kind of high-speed steel tool Strengthening and Toughening processing unit |
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| CN (1) | CN208562500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095073A (en) * | 2020-08-20 | 2020-12-18 | 湖南申亿五金标准件有限公司 | QPQ treatment process with high toughness |
-
2018
- 2018-05-11 CN CN201820696324.7U patent/CN208562500U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095073A (en) * | 2020-08-20 | 2020-12-18 | 湖南申亿五金标准件有限公司 | QPQ treatment process with high toughness |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190301 Termination date: 20210511 |
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| CF01 | Termination of patent right due to non-payment of annual fee |