CN107604356A - A kind of high rigidity coat of metal wear resistant cutting pick - Google Patents
A kind of high rigidity coat of metal wear resistant cutting pick Download PDFInfo
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- CN107604356A CN107604356A CN201710933837.5A CN201710933837A CN107604356A CN 107604356 A CN107604356 A CN 107604356A CN 201710933837 A CN201710933837 A CN 201710933837A CN 107604356 A CN107604356 A CN 107604356A
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Abstract
The invention discloses a kind of high rigidity coat of metal wear resistant cutting pick, including pick body, and plasma cladding method is used in the pick body head, in the floor height hard metal protective layer of pick head cladding one；Described high rigidity coat of metal, in parts by weight, it is made up of 60 90 parts of diamond, 30 50 parts of recycling wax, 5 15 parts of stearin candle, 5 20 parts of paraffin, 2 10 parts of borax, 8 20 parts of silica flour, 12 parts of iron oxide, 12 parts of calcium oxide.Due to the present invention by diamond, recycling wax, stearin candle reasonable employment; the coat of metal of gained has the characteristics that hardness height, good toughness, wear and shock-resistant; protect pick denticle head well; reduce the head denticle rate of wear; make denticle abrasion synchronous with alloy head; it is optimal cooperation, greatly improves the wearability and service life of pick.
Description
Technical field
The present invention relates to a kind of pick manufacture field, and in particular to a kind of high rigidity coat of metal wear resistant cutting pick.
Background technology
Pick is one of consumable accessory in coal mining and tunnelling machinery, is the main tool of coal breakage and broken coal, its property
Fine or not it can directly affect the performance of coal-cutting machinery production capacity, the consumption of power, work smoothness and other related components
Service life.General structure is tungsten carbide button's cutter head on quenched, temper low-alloy structural steel cutter hub.
At present, although the hard alloy cutting pick head of use has preferable anti-wear performance compared with steel, but can not expire
The requirement of sufficient service life, and because this kind of cutting-gear life is bad, cause frequently to change pick so that the effect of mining machinery
Rate can not be not fully exerted.Simultaneously as cutting pick handle is prepared by materials such as steel alloys so that cutting pick handle pole intolerant to
Mill, make hard alloy cutting pick head is too early to come off, cause whole pick to damage failure in advance, traditionally carried out using to cutting pick handle
It is heat-treated or increases wearability in one layer of wear resistance electrode of cutting pick handle surface overlaying, reaches gauge purpose, DeGrain.
The life-span of the cutting pick handle particularly made in the appearance of diamond compound pick head, its high-wearing feature high life is with greater need for obtaining very
Good guarantee.
The content of the invention
It is an object of the invention to provide a kind of wearability is strong, wear-resisting section of the high rigidity coat of metal of service life length
Tooth.
In order to achieve the above object, a kind of high rigidity coat of metal wear resistant cutting pick of the invention, including pick body,
The pick body head uses plasma cladding method, in the floor height hard metal protective layer of pick head cladding one；Described
High rigidity coat of metal, in parts by weight, it is made up of following raw materials according：
Diamond：60-90 parts, recycling wax：30-50 parts, stearin candle：5-15 parts, paraffin：5-20 parts, borax：2-10 parts, quartz
Powder：8-20 parts, iron oxide：1-2 parts, calcium oxide：1-2 parts.
The cladding method of above-mentioned high rigidity coat of metal, comprises the following steps：
Above-mentioned raw material are mixed and obtain metal composites by a；
Above-mentioned metal composites pressing mold is obtained green compact by b, and 40-60 minutes are toasted at a temperature of 200-350 DEG C；
Green compact after baking are carried out isostatic sintering under oxygen free condition, sintering pressure 100-400MPa by c, and sintering temperature is
1600-2000℃；
Green compact after sintering are ground by d, and granularity is 15-45 μm, then again by metal dust 150 DEG C or so in drying box
Dried；
E by the metal dust after baking and binding agent stir mixing it is proportional be 3:The paste mixture of 1 (mass ratio),
Even to be coated in pick head, precoating powder thickness is 5mm, then inserts less than 80 DEG C drying or natural air drying in drying box；
The pick preset is placed on the lathe of laser by f, carries out Laser Cladding Treatment, and laser cladding technological parameter is：
Power is 1.7-1.8kw, laser scanning speed 200-500mm/s, overlapping rate 30-40%, spot diameter 5mm, institutional framework point
Analysis finds that laser macro morphology cladding layer is smooth, fine and close, zero defect；Microstructure of surface cladding layer interior solid, pore-free and crackle etc.
Defect.
Using argon gas as protective gas during described Laser Cladding Treatment.
In the above-mentioned technical solutions, due to the present invention by diamond, recycling wax, stearin candle reasonable employment, gained
Coat of metal has the characteristics that hardness height, good toughness, wear and shock-resistant, protects pick denticle head well, reduces
The head denticle rate of wear, make denticle abrasion synchronous with alloy head, be optimal cooperation；Meanwhile processing technology of the present invention is easily real
Existing, yields is high, is advantageous to mass mechanized production.
Embodiment
A kind of high rigidity coat of metal wear resistant cutting pick of the present invention is described further with reference to specific implementation；
Implementation column 1：
A kind of high rigidity coat of metal wear resistant cutting pick of the present invention, including pick body, used in the pick body head
Plasma cladding method, in the floor height hard metal protective layer of pick head cladding one；Described high rigidity coat of metal, according to
Parts by weight meter, is made up of following raw materials according：
Diamond：60 parts, recycling wax：30 parts, stearin candle：5 parts, paraffin：5 parts, borax：2 parts, silica flour：8 parts, iron oxide：1
Part, calcium oxide：1 part.
The cladding method of above-mentioned high rigidity coat of metal, comprises the following steps：
Above-mentioned raw material are mixed and obtain metal composites by a；
Above-mentioned metal composites pressing mold is obtained green compact by b, is toasted 40 minutes at a temperature of 200 DEG C；
Green compact after baking are carried out isostatic sintering under oxygen free condition, sintering pressure 100MPa, sintering temperature 1600 by c
℃；
Green compact after sintering are ground by d, and granularity is 15 μm, is then again dried metal dust for 140 DEG C in drying box
It is dry；
E by the metal dust after baking and binding agent stir mixing it is proportional be 3:The paste mixture of 1 (mass ratio),
Even to be coated in pick head, precoating powder thickness is 5mm, then inserts less than 80 DEG C drying in drying box；
The pick preset is placed on the lathe of laser by f, carries out Laser Cladding Treatment, and laser cladding technological parameter is：
Power is 1.7kw, laser scanning speed 200mm/s, overlapping rate 30%, spot diameter 5mm, and contextual analysis of organization finds, laser is grand
Sight pattern cladding layer is smooth, fine and close, zero defect；The defects of microstructure of surface cladding layer interior solid, pore-free and crackle.
Implementation column 2：
A kind of high rigidity coat of metal wear resistant cutting pick of the present invention, including pick body, used in the pick body head
Plasma cladding method, in the floor height hard metal protective layer of pick head cladding one；Described high rigidity coat of metal, according to
Parts by weight meter, is made up of following raw materials according：
Diamond：80 parts, recycling wax：40 parts, stearin candle：10 parts, paraffin：15 parts, borax：8 parts, silica flour：15 parts, oxidation
Iron：2 parts, calcium oxide：2 parts.
The cladding method of above-mentioned high rigidity coat of metal, comprises the following steps：
Above-mentioned raw material are mixed and obtain metal composites by a；
Above-mentioned metal composites pressing mold is obtained green compact by b, is toasted 50 minutes at a temperature of 250 DEG C；
Green compact after baking are carried out isostatic sintering under oxygen free condition, sintering pressure 300MPa, sintering temperature 1800 by c
℃；
Green compact after sintering are ground by d, and granularity is 30 μm, is then again dried metal dust for 150 DEG C in drying box
It is dry；
E by the metal dust after baking and binding agent stir mixing it is proportional be 3:The paste mixture of 1 (mass ratio),
Even to be coated in pick head, precoating powder thickness is 5mm, then inserts 70 DEG C of drying in drying box；
The pick preset is placed on the lathe of laser by f, carries out Laser Cladding Treatment, and laser cladding technological parameter is：
Power is 1.8kw, laser scanning speed 300mm/s, overlapping rate 35%, spot diameter 5mm, and contextual analysis of organization finds, laser
Macro morphology cladding layer is smooth, fine and close, zero defect；The defects of microstructure of surface cladding layer interior solid, pore-free and crackle.
Embodiment 3：
A kind of high rigidity coat of metal wear resistant cutting pick of the present invention, including pick body, used in the pick body head
Plasma cladding method, in the floor height hard metal protective layer of pick head cladding one；Described high rigidity coat of metal, according to
Parts by weight meter, is made up of following raw materials according：
Diamond：90 parts, recycling wax：50 parts, stearin candle：15 parts, paraffin：20 parts, borax：10 parts, silica flour：20 parts,
Iron oxide：2 parts, calcium oxide：2 parts.
The cladding method of above-mentioned high rigidity coat of metal, comprises the following steps：
Above-mentioned raw material are mixed and obtain metal composites by a；
Above-mentioned metal composites pressing mold is obtained green compact by b, is toasted 60 minutes at a temperature of 350 DEG C；
Green compact after baking are carried out isostatic sintering under oxygen free condition, sintering pressure 400MPa by c, and sintering temperature is 2000 DEG C；
Green compact after sintering are ground by d, and granularity is 45 μm, is then again dried metal dust for 160 DEG C in drying box
It is dry；
E by the metal dust after baking and binding agent stir mixing it is proportional be 3:The paste mixture of 1 (mass ratio),
Even to be coated in pick head, precoating powder thickness is 5mm, then inserts 70 DEG C of drying in drying box；
The pick preset is placed on the lathe of laser by f, carries out Laser Cladding Treatment, and laser cladding technological parameter is：
Power is 1.8kw, laser scanning speed 500mm/s, overlapping rate 40%, spot diameter 5mm, and contextual analysis of organization finds, laser is grand
Sight pattern cladding layer is smooth, fine and close, zero defect；The defects of microstructure of surface cladding layer interior solid, pore-free and crackle.
In the various embodiments described above, using argon gas as protective gas during described Laser Cladding Treatment.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention；Appoint
What those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the side of above-mentioned prompting
Method and technology contents make many possible changes and modifications to technical solution of the present invention, or are revised as the equivalent reality of equivalent variations
Apply example.Therefore, every content without departing from technical solution of the present invention, the technical spirit according to the present invention are done to above example
Any simple modification, equivalent substitution, equivalence changes and modification, still fall within the range of technical solution of the present invention protects.
Claims (1)
1. a kind of high rigidity coat of metal wear resistant cutting pick, including pick body, it is characterised in that：In the pick body head
Using plasma cladding method, in the floor height hard metal protective layer of pick head cladding one；Described high rigidity coat of metal,
In parts by weight, it is made up of following raw materials according：
Diamond：60-90 parts, recycling wax：30-50 parts, stearin candle：5-15 parts, paraffin：5-20 parts, borax：2-10 parts, quartz
Powder：8-20 parts, iron oxide：1-2 parts, calcium oxide：1-2 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710933837.5A CN107604356A (en) | 2017-10-10 | 2017-10-10 | A kind of high rigidity coat of metal wear resistant cutting pick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710933837.5A CN107604356A (en) | 2017-10-10 | 2017-10-10 | A kind of high rigidity coat of metal wear resistant cutting pick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107604356A true CN107604356A (en) | 2018-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710933837.5A Pending CN107604356A (en) | 2017-10-10 | 2017-10-10 | A kind of high rigidity coat of metal wear resistant cutting pick |
Country Status (1)
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440487A (en) * | 2007-11-21 | 2009-05-27 | 王玉岫 | Antioxidant spray coating for hot rolling billet |
| CN105201502A (en) * | 2015-09-15 | 2015-12-30 | 安徽澳德矿山机械设备科技股份有限公司 | High-hardness metal ceramic layer wear-resistant cutting tooth |
-
2017
- 2017-10-10 CN CN201710933837.5A patent/CN107604356A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440487A (en) * | 2007-11-21 | 2009-05-27 | 王玉岫 | Antioxidant spray coating for hot rolling billet |
| CN105201502A (en) * | 2015-09-15 | 2015-12-30 | 安徽澳德矿山机械设备科技股份有限公司 | High-hardness metal ceramic layer wear-resistant cutting tooth |
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Application publication date: 20180119 |