CN85100341A - Technology for rolling impact of carbide surface - Google Patents
Technology for rolling impact of carbide surface Download PDFInfo
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- CN85100341A CN85100341A CN 85100341 CN85100341A CN85100341A CN 85100341 A CN85100341 A CN 85100341A CN 85100341 CN85100341 CN 85100341 CN 85100341 A CN85100341 A CN 85100341A CN 85100341 A CN85100341 A CN 85100341A
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Abstract
Technology for rolling impact of carbide surface belongs to post processing field, sintering cemented carbide surface.Under the situation that has suitable polishing matter and polishing agent to exist, adopt hardness greater than the variform granular carbide of 86HRA as impact body, realize the surface densification of alloy in the rolling impact device, 100% alloy surface reaches the fineness of 9 grades of 8- after polishing in 4-5 hour.Surface more than 98% does not exist low power visible pores and crizzle.Sharp rib part is the transition arc of formation γ=0.3 millimeter naturally.Rock drilling ratio in service life does not have surface treated alloy to improve 1.5 times.Adopt about 25 kilograms of said method surface treatment amount/day platform.
Description
The present invention belongs to post processing field, sintering cemented carbide surface.Because carbide alloy material itself is hard and crisp, its Main Ingredients and Appearance tungsten carbide is also harder than used most of abrasive material in the emery wheel, and it is very difficult to carry out the sintered surface post processing.But progressively reduction (9.5～4) the %(weight along with rock drilling carbide alloy cobalt content), surface pore, hole, micro-crack etc. are inevitable, will become the destruction source in the alloy use.Because developing rapidly of heavy hydraulic rock drill requires to bear the rock drilling globular tooth madding with alloyization that large impact energy is used, spherical tooth drill bit also develops rapidly on the other hand.Iron chains tooth technology is developed to cold embedding, hot embedding by welding.Cold embedding and hot embedding technology technology have strict requirement to cooperating between alloy and the steel body, just can guarantee the enough power of holding tightly.Therefore, require alloy to have higher surface quality, its quality index comprises surface smoothness, dimensional tolerance, porosity and micro-crack distribution etc.Still do not have at present a kind of rapid batch and handle the method on sintering cemented carbide surface.In December, 1978, American scholar MAnthony and TWGriffiths were to adopt Carborundum wheel grinding or electric machining earlier in the method that " tungstenic material produce in " proposes sintering cemented carbide surface post processing, with tolerance reduced in size and geometric tolerances, further become a very level and smooth surface to remove the surface damage that roughing causes, to make then with diamond correct grinding.Processing at last comprises the multistage polishing that reaches very high bright degree.The author thinks that this method is very bothersome.
The seventies, the vibration finishing technology is very fast in China's development, and it can process the surface of workpiece such as ferrous metal, non-ferrous metal even plastic products.But this method to hardness greater than 88(HRA) carbide surface handle and all not mention.
The object of the present invention is to provide a kind of method of low cobalt ore of fast, efficiently polishing with carbide surface, to reach defectives such as eliminating alloy surface hole, hole and micro-crack, satisfy the needs of inserted tooth technology to improve surface smoothness, and then improve the service life of carbide alloy.
Characteristics of the present invention are under the situation that has polishing matter, polishing agent to exist, and by means of the carbide alloy impact body polished deposits yields rolling impact are realized the densified of polished thing.The rolling impact device is seen accompanying drawing.Polished goods (1) place in the tourelle garden cylindrical shell (2), and when the garden cylindrical shell drove the generation gyration by motor (3), polished goods were subjected to the continuous impact of carbide alloy impact body (4), finally obtain finishing polish face.Polishing matter is with 200 order chrome green or boron carbides; Polishing agent is an industrial alcohol; The rotating speed of garden cylindrical shell is 50～70 (rev/min), its L/D ratio is 2:1, volume 20～60 liters; Impact body is that hardness is greater than 86 (HRA), substance is less than the cemented carbide body of polished goods, it is shaped as prismatic, taper, 3～4 kilowatts of ellipse garden shape and sphere etc. and collocation is by a certain percentage used.The power of motor is.
To be carbide button that grinding (joining the Carborundum wheel grinding with coreless grinding machine) is good be equipped with impact body with 2: 5 ratio to procedure of the present invention; pack in the tube of garden; be fills up to the garden cylindrical shell long-pending about 2/3; then in the powder slurry injection garden tube of " polishing matter adds polishing agent " assembly; seal, rolling impact is 4 to 5 hours on ball mill, can shut down taking-up; wash, wipe and do oven dry (less than 40 ℃) through alcohol, just obtain qualified polishing product.
Techno-economic effect of the present invention: compare with method of the present invention (calling method 2 in the following text) with above-mentioned method (calling method 1 in the following text):
Can be found out by top artwork: method 1 is more than five processes; Complicated operation; Require exquisite technology; The single treatment amount is few; Mostly be heavy hand labour.2 two procedures of method; Simple to operate; Do not need exquisite technology; No heavy hand labour, 25 kilograms of the single device dailys output or more; Only need cheap equipment, the maintenance of equipment amount is few.The carbide surface of handling by method 2 can reach
8～
9 grades surface smoothness, (preserving light does not for a long time subtract) eliminated 98% above alloy surface hole and micro-crack again.Go back the transition garden arc that nature forms γ=0.3 millimeter simultaneously.Become the spherical tooth drill bit of 48 millimeters of diameters by surface-treated alloy embedding iron chains, in f=14～16 silicon matter packsands, use the heavy hydraulic rock drill of 25 kilogram-metres, than there not being the surface-treated alloy to improve 1.5 times service life.
Embodiment one: with 2 liter stainless steel cylinders, the carbide alloy of 10 * 16 millimeters of 2 kilograms of φ of grinding and substance different hardness such as prismatic, taper, ellipse garden shape and the sphere carbide alloy impact body greater than 86HRA is mixed for 5 kilograms, pack into then in the tube of garden, with long-pending 40～50% being advisable of filling garden cylindrical shell.Inject the powder slurry that polishing matter adds the polishing agent assembly, be advisable for 3～5 millimeters to expose surface in kind.Seal, through polishing in 4～5 hours.100% alloy surface reaches as a result
8～
9 grades of fineness, 98% above alloy does not exist low power visible pores and face crack, goes back the transition garden cambered surface that nature forms γ=0.3 millimeter simultaneously, for inserted tooth provides necessary spigot surface.
Embodiment two: on the basis of embodiment one, handle good high 14 millimeters of grinding, thick 8 millimeters, long 15 millimeters sheet alloy obtains same effect.
Embodiment three: on the basis of embodiment one, adjust the weight ratio of goods and impact body, the surface treatment of the different sheet mine hard alloy of substance has been reached same effect.
Suitably match size and the rotating speed of device and the ratio of goods and impact body of impact body, the surface treatment that above-mentioned technology is used for WC-TiC-Co class alloy can obtain close result.
Claims (5)
1, a kind of carbide surface processing method is to obtain smooth surface by means of Carborundum wheel grinding, diamond finish grind and repeatedly polish, feature of the present invention is to adopt granular carbide to place it in the microscler stainless steel cylinder as impact body, injects the powder slurry of " polishing matter adds polishing agent " assembly then and realizes the densified of polished carbide surface at the percussion mechanism that rolls.
2, according to claim 1, it is characterized in that the stainless steel cylinder is microscler, its length-to-diameter is 2: 1.
3, according to claim 1, it is characterized in that impact body is that substances such as prismatic, taper, ellipse garden shape and sphere are different, hardness is greater than the carbide alloy of 86HRA, its substance should be less than polished thing substance.
4, according to claim 1, it is characterized in that polishing agent is an industrial alcohol, polishing matter is chrome green (200 order) powder or boron carbide (200 order) powder.
5, according to claim 1, it is characterized in that the rolling impact polishing time is 4～5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85100341A CN85100341B (en) | 1985-04-01 | 1985-04-01 | Technology for rolling impact of carbide surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85100341A CN85100341B (en) | 1985-04-01 | 1985-04-01 | Technology for rolling impact of carbide surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85100341A true CN85100341A (en) | 1986-08-20 |
| CN85100341B CN85100341B (en) | 1988-09-07 |
Family
ID=4791078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85100341A Expired CN85100341B (en) | 1985-04-01 | 1985-04-01 | Technology for rolling impact of carbide surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85100341B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393905C (en) * | 2006-04-03 | 2008-06-11 | 自贡硬质合金有限责任公司 | Vacuum heat treatment method for hard alloy for drilling |
| CN101848793B (en) * | 2007-09-13 | 2013-10-23 | 维布莱格拉兹(英国)有限公司 | Deburring medium and process |
| CN107570710A (en) * | 2017-08-18 | 2018-01-12 | 武汉新锐合金工具有限公司 | A kind of method of granulating of extra coarse grain hard alloy |
| CN107932197A (en) * | 2017-11-27 | 2018-04-20 | 宁波中和汽配有限公司 | Needle roller glossing |
| CN108161370A (en) * | 2018-02-06 | 2018-06-15 | 青岛恒鑫传动有限公司 | Chain production technology and the pin shaft fillet processing unit (plant) applied to the technique |
| CN108608304A (en) * | 2016-12-12 | 2018-10-02 | 中国航空工业标准件制造有限责任公司 | A kind of corrosion proof method of raising iron-base superalloy fastener products |
| CN109623623A (en) * | 2019-01-14 | 2019-04-16 | 椿中岛机械(太仓)有限公司 | Optics connection glass marble processing method suitable for IT and communications industry |
| CN110202439A (en) * | 2019-07-04 | 2019-09-06 | 安徽莱恩电泵有限公司 | A kind of arrangement for grinding can be improved impeller channel smoothness |
| CN114589552A (en) * | 2022-03-16 | 2022-06-07 | 株洲肯特硬质合金股份有限公司 | Surface passivation method for hard alloy spherical teeth |
-
1985
- 1985-04-01 CN CN85100341A patent/CN85100341B/en not_active Expired
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393905C (en) * | 2006-04-03 | 2008-06-11 | 自贡硬质合金有限责任公司 | Vacuum heat treatment method for hard alloy for drilling |
| CN101848793B (en) * | 2007-09-13 | 2013-10-23 | 维布莱格拉兹(英国)有限公司 | Deburring medium and process |
| CN108608304A (en) * | 2016-12-12 | 2018-10-02 | 中国航空工业标准件制造有限责任公司 | A kind of corrosion proof method of raising iron-base superalloy fastener products |
| CN107570710A (en) * | 2017-08-18 | 2018-01-12 | 武汉新锐合金工具有限公司 | A kind of method of granulating of extra coarse grain hard alloy |
| CN107570710B (en) * | 2017-08-18 | 2019-06-28 | 武汉新锐合金工具有限公司 | A kind of method of granulating of extra coarse grain hard alloy |
| CN107932197A (en) * | 2017-11-27 | 2018-04-20 | 宁波中和汽配有限公司 | Needle roller glossing |
| CN107932197B (en) * | 2017-11-27 | 2019-09-17 | 宁波中和汽配有限公司 | Needle roller polishing process |
| CN108161370A (en) * | 2018-02-06 | 2018-06-15 | 青岛恒鑫传动有限公司 | Chain production technology and the pin shaft fillet processing unit (plant) applied to the technique |
| CN108161370B (en) * | 2018-02-06 | 2020-05-22 | 青岛恒鑫传动有限公司 | Chain production process and pin shaft fillet machining device applied to same |
| CN109623623A (en) * | 2019-01-14 | 2019-04-16 | 椿中岛机械(太仓)有限公司 | Optics connection glass marble processing method suitable for IT and communications industry |
| CN110202439A (en) * | 2019-07-04 | 2019-09-06 | 安徽莱恩电泵有限公司 | A kind of arrangement for grinding can be improved impeller channel smoothness |
| CN114589552A (en) * | 2022-03-16 | 2022-06-07 | 株洲肯特硬质合金股份有限公司 | Surface passivation method for hard alloy spherical teeth |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85100341B (en) | 1988-09-07 |
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