CN103805834A - Cubic boron nitride composite material and screw manufactured by same and manufacturing method - Google Patents
Cubic boron nitride composite material and screw manufactured by same and manufacturing method Download PDFInfo
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- CN103805834A CN103805834A CN201210440180.6A CN201210440180A CN103805834A CN 103805834 A CN103805834 A CN 103805834A CN 201210440180 A CN201210440180 A CN 201210440180A CN 103805834 A CN103805834 A CN 103805834A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/507—Screws characterised by the material or their manufacturing process
- B29C48/509—Materials, coating or lining therefor
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Abstract
The invention discloses a cubic boron nitride composite material, a screw manufactured by the same, and a manufacturing method. The cubic boron nitride composite material is prepared from the following components by weight: 100 parts of stainless steel powder, 10-60 parts of cubic boron nitride powder, 5-20 parts of cementite powder, and 2-10 parts of sintering aids; a screw is manufactured by molding processing of the above cubic boron nitride composite material as a raw material. The screw provided in the invention is harder, and more wear-resistant than common stainless steel screws, has a service life being 5-6 times of that of common stainless steel screws, and can be used for highly-packed material processing for a long time. According to the invention, cementite is compounded with cubic boron nitride to be used as a screw material for the first time, which widens the application fields of cubic boron nitride and cementite.
Description
Technical field
The present invention relates to mechanical manufacturing field, relate in particular to a kind of cubic boron nitride material and screw rod prepared therefrom and manufacture method.
Background technology
Along with the development of modern science and technology, particularly the continuous appearance of high-temperature special engineering plastics and plastic working industry constantly develop, various novel plastic fillers are constantly developed, the hardness of a lot of fillers is very high, very large to the wearing and tearing of common stainless steel screw rod, have a strong impact on work-ing life of screw rod.
The crystalline structure class dimantine of cubic boron nitride, a little less than diamond, (adamantine Mohs' hardness is 10 to hardness, the Mohs' hardness of cubic boron nitride is 9.5), be commonly used for abrasive material and cutter material, for example Chinese patent application CN102416602A discloses a kind of cubic boron nitride abrasive wheel; Chinese patent application CN101712550A discloses a kind of cubic boron nitride superhard cutter, is mainly used in turning cutting tool.But cubic boron nitride is used as screw rod material and there is not yet so far report.
Tri-ferrous carbide has rhombic structure, and hardness is larger, but its application is less at present, and Application Areas is narrow.
Summary of the invention
In order to solve, the current various novel plastic filler hardness existing in prior art is high to be caused the common stainless steel screw rod large problem of wearing and tearing, the first object of the present invention is to provide a kind of screw rod of manufacturing for the manufacture of the cubic boron nitride material of screw rod and by this matrix material, this screw rod than common stainless steel screw rod more firmly, more wear-resisting, be 5 ~ 6 times of common screw work-ing life, the materials processing that can fill for height for a long time.
The second object of the present invention is to provide a kind of screw rod of being manufactured by cubic boron nitride material.
The 3rd object of the present invention is to provide the manufacture method of above-mentioned cubic boron nitride material screw rod.
Object of the present invention is achieved through the following technical solutions:
A kind of cubic boron nitride material, made by the component that comprises following weight part:
100 parts of powder of stainless steel,
10 ~ 60 parts of cubic boron nitride powders,
5 ~ 20 parts, tri-ferrous carbide powder,
2 ~ 10 parts of sintering aids.
Preferably, described powder of stainless steel is selected from one or more in 9Cr18MoV stainless steel, 38CrMoAl stainless steel or SKH-9 rapid steel.
Preferably, the particle diameter of described powder of stainless steel is 500 order ~ 1000 orders;
Described cubic boron nitride powder particle diameter is 1000 ~ 2000 orders;
Described tri-ferrous carbide powder diameter is 1500 order ~ 2500 orders.
Preferably, described sintering aid is selected from one or both in boron micro mist, alumina powder.
Preferably, described boron micro mist and the particle diameter of alumina powder are 1250 ~ 2500 orders, and the purity of preferred described boron micro mist is more than or equal to 99.6%.
The screw rod that a kind of above-mentioned cubic boron nitride material is manufactured.
A manufacture method for above-mentioned cubic boron nitride material screw rod, comprises the following steps:
A is using cubic boron nitride material as raw material, putting into superhard alloy tank according to certain proportioning mixes, wherein, cubic boron nitride material comprises 100 weight part powder of stainless steel, 10 ~ 60 weight part cubic boron nitride powders, 5 ~ 20 weight part tri-ferrous carbide powder, 2 ~ 10 weight part sintering aids;
B puts into superhard alloy combination block synthetic cavity mould by the above-mentioned raw material mixing and seals;
It is screw rod that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 12 ~ 20GPa, and temperature is 1100 ~ 2100 ℃, and the dwell time is 100 ~ 200 seconds;
D by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain cubic boron nitride material screw rod.
Preferably, in described step C, hot press molding pressure is 14 ~ 18 GPa, and temperature is 1300 ~ 1800 ℃, and the dwell time is 120 ~ 180 seconds.
The manufacture method of another kind of above-mentioned cubic boron nitride material screw rod, comprises the following steps:
A, using cubic boron nitride material as raw material, puts into superhard alloy tank according to certain proportioning and mixes, wherein, cubic boron nitride material comprises 100 parts of powder of stainless steel, 10 ~ 60 parts of cubic boron nitride powders, 5 ~ 20 parts, tri-ferrous carbide powder, 2 ~ 10 parts of sintering aids;
B puts into superhard alloy combination block hollow cylinder cavity mold by the above-mentioned raw material mixing and seals;
It is right cylinder cubic boron nitride material that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 12 ~ 20GPa, and temperature is 1100 ~ 2100 ℃, and the dwell time is 100 ~ 200 seconds;
D is screw rod by hot-forming good right cylinder cubic boron nitride material with sharpener machine-shaping;
E by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain cubic boron nitride material screw rod.
Preferably, in described step C, hot press molding pressure is 14 ~ 18 GPa, and temperature is 1300 ~ 1800 ℃, and the dwell time is 120 ~ 180 seconds; In described step D, described sharpener is diamond sharpener.
Compared to existing technology, the invention has the beneficial effects as follows:
1. the present invention adopts cubic boron nitride material as manufacturing the raw material of screw rod, can obviously improve hardness and the wear resistance of screw rod, and making screw rod of the present invention is 5 ~ 6 times of common steel alloy screw rod work-ing life;
2. the present invention, first using compound as screw rod materials'use to tri-ferrous carbide and cubic boron nitride, has widened the Application Areas of tri-ferrous carbide.
Embodiment
Below in conjunction with embodiment, the invention will be further described, and except specified otherwise, in embodiment, each component is weight part.Test event in embodiment is all carried out corresponding national standard, i.e. Rockwell hardness GB/T 230.3-2002, wear resisting property GB/T 12444-2006.
Embodiment 1
In the present embodiment, cubic boron nitride material comprises:
100 parts of order numbers are 500 object 9Cr18MoV powder of stainless steel, 15 parts of order numbers are 1000 object cubic boron nitride powders, 5 parts of order numbers are 2000 object tri-ferrous carbide powder, and 3 parts of order numbers are the boron micro mist that 1250 orders, purity are 99.8%, and 3 parts of order numbers are 1250 object alumina powders.
Adopt respectively following method to manufacture screw rod:
Method 1:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block synthetic cavity mould by the above-mentioned raw material mixing and seals;
It is screw rod that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 15GPa, and temperature is 1500 ℃, and the dwell time is 120 seconds;
D by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 1 is manufactured.
Method 2:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block hollow cylinder cavity mold by the above-mentioned raw material mixing and seals;
It is right cylinder cubic boron nitride material that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 15GPa, and temperature is 1500 ℃, and the dwell time is 120 seconds;
D is screw rod by hot-forming good right cylinder cubic boron nitride material with the machine-shaping of diamond sharpener;
E by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 2 is manufactured.
The hardness of the cubic boron nitride material screw rod of more than manufacturing and wear resistance data are in table 1.
Comparative example 1
Screw rod raw material is that 100 parts of order numbers are 500 object 9Cr18MoV powder of stainless steel.
Method below corresponding employing is manufactured screw rod respectively:
Method 1:
A puts into superhard alloy combination block synthetic cavity mould by above-mentioned screw rod raw material and seals;
It is screw rod that B puts into hot-forming under high temperature by whole mould, and hot press molding pressure is 15GPa, and temperature is 1500 ℃, and the dwell time is 120 seconds;
C by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain the screw rod that this comparative example method 1 is manufactured.
Method 2:
A puts into superhard alloy combination block hollow cylinder cavity mold by above-mentioned screw rod raw material and seals;
It is stainless steel right cylinder that B puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 15GPa, and temperature is 1500 ℃, and the dwell time is 120 seconds;
C is screw rod by hot-forming good stainless steel right cylinder with the machine-shaping of diamond sharpener;
D by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain the screw rod that this comparative example method 2 is manufactured.
The hardness of the screw rod that this comparative example manufactures and wear resistance data are in table 1.
Embodiment 2
In the present embodiment, cubic boron nitride material comprises:
100 parts of order numbers are 500 object 38CrMoAl powder of stainless steel, 20 parts of order numbers are 1000 object cubic boron nitride powders, 10 parts of order numbers are 2000 object tri-ferrous carbide powder, and 5 parts of order numbers are the boron micro mist that 1250 orders, purity are 99.8%, and 3 parts of order numbers are 1250 object alumina powders.
Adopt respectively following method to manufacture screw rod:
Method 1:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block synthetic cavity mould by the above-mentioned raw material mixing and seals;
It is screw rod that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 16GPa, and temperature is 1550 ℃, and the dwell time is 130 seconds;
D by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 1 is manufactured.
Method 2:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block hollow cylinder cavity mold by the above-mentioned raw material mixing and seals;
It is right cylinder cubic boron nitride material that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 16GPa, and temperature is 1550 ℃, and the dwell time is 130 seconds;
D is screw rod by hot-forming good right cylinder cubic boron nitride material with the machine-shaping of diamond sharpener;
E by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 2 is manufactured.
The hardness of the cubic boron nitride material screw rod of more than manufacturing and wear resistance data are in table 1.
Comparative example 2
Screw rod raw material is that 100 parts of order numbers are 500 object 38CrMoAl powder of stainless steel.
Method below corresponding employing is manufactured screw rod respectively:
Method 1:
A puts into superhard alloy combination block synthetic cavity mould by above-mentioned screw rod raw material and seals;
It is screw rod that B puts into hot-forming under high temperature by whole mould, and hot press molding pressure is 16GPa, and temperature is 1550 ℃, and the dwell time is 130 seconds;
C by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain the screw rod that this comparative example method 1 is manufactured.
Method 2:
A puts into superhard alloy combination block hollow cylinder cavity mold by above-mentioned screw rod raw material and seals;
It is stainless steel right cylinder that B puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 16GPa, and temperature is 1550 ℃, and the dwell time is 130 seconds;
C is screw rod by hot-forming good stainless steel right cylinder with the machine-shaping of diamond sharpener;
D by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain the screw rod that this comparative example method 2 is manufactured.
The hardness of the screw rod that this comparative example manufactures and wear resistance data are in table 1.
Table 1 embodiment 1 ~ 2 and comparative example's 1 ~ 2 hardness and wear resistance
Can find out from the test result of table 1, the hardness of cubic boron nitride material screw rod of the present invention and wear resisting property are obviously better than single stainless steel screw rod.
Embodiment 3
In the present embodiment, cubic boron nitride material comprises:
100 parts of order numbers are 800 object SKH-9 High Speed Steel Powders, 15 parts of order numbers are 1000 object cubic boron nitride powders, 10 parts of order numbers are 2000 object tri-ferrous carbide powder, and 5 parts of order numbers are the boron micro mist that 1250 orders, purity are 99.9%, and 5 parts of order numbers are 1250 object alumina powders.
Adopt respectively following method to manufacture screw rod:
Method 1:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block synthetic cavity mould by the above-mentioned raw material mixing and seals;
It is screw rod that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 16GPa, and temperature is 1550 ℃, and the dwell time is 130 seconds;
D by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 1 is manufactured.
Method 2:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block hollow cylinder cavity mold by the above-mentioned raw material mixing and seals;
It is right cylinder cubic boron nitride material that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 16GPa, and temperature is 1550 ℃, and the dwell time is 130 seconds;
D is screw rod by hot-forming good right cylinder cubic boron nitride material with the machine-shaping of diamond sharpener;
E by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 2 is manufactured.
The hardness of the cubic boron nitride material screw rod of more than manufacturing and wear resistance data are in table 2.
Comparative example 3
Screw rod raw material is that 100 parts of order numbers are 800 object SKH-9 High Speed Steel Powders.
Method below corresponding employing is manufactured screw rod respectively:
Method 1:
A puts into superhard alloy combination block synthetic cavity mould by above-mentioned screw rod raw material and seals;
It is screw rod that B puts into hot-forming under high temperature by whole mould, and hot press molding pressure is 16GPa, and temperature is 1550 ℃, and the dwell time is 130 seconds;
C by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain the screw rod that this comparative example method 1 is manufactured.
Method 2:
A puts into superhard alloy combination block hollow cylinder cavity mold by above-mentioned screw rod raw material and seals;
It is stainless steel right cylinder that B puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 16GPa, and temperature is 1550 ℃, and the dwell time is 130 seconds;
C is screw rod by hot-forming good stainless steel right cylinder with the machine-shaping of diamond sharpener;
D by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain the screw rod that this comparative example method 2 is manufactured.
The hardness of the screw rod that this comparative example manufactures and wear resistance data are in table 2.
Embodiment 4
In the present embodiment, cubic boron nitride material comprises:
50 parts of order numbers are that 500 object 9Cr18MoV powder of stainless steel and 50 parts of order numbers are 500 object SKH-9 High Speed Steel Powders, 20 parts of order numbers are 1500 object cubic boron nitride powders, 10 parts of order numbers are 2000 object tri-ferrous carbide powder, 5 parts of order numbers are the boron micro mist that 1250 orders, purity are 99.8%, and 5 parts of order numbers are 1250 object alumina powders.
Adopt respectively following method to manufacture screw rod:
Method 1:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block synthetic cavity mould by the above-mentioned raw material mixing and seals;
It is screw rod that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 17GPa, and temperature is 1650 ℃, and the dwell time is 150 seconds;
D by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 1 is manufactured.
Method 2:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block hollow cylinder cavity mold by the above-mentioned raw material mixing and seals;
It is right cylinder cubic boron nitride material that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 17GPa, and temperature is 1650 ℃, and the dwell time is 150 seconds;
D is screw rod by hot-forming good right cylinder cubic boron nitride material with the machine-shaping of diamond sharpener;
E by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 2 is manufactured.
The hardness of the cubic boron nitride material screw rod of more than manufacturing and wear resistance data are in table 2.
Comparative example 4
Screw rod raw material is that 50 parts of order numbers are that 500 object 9Cr18MoV powder of stainless steel and 50 parts of order numbers are 500 object 38CrMoAl powder of stainless steel.
Method below corresponding employing is manufactured screw rod respectively:
Method 1:
A puts into superhard alloy combination block synthetic cavity mould by above-mentioned screw rod raw material and seals;
It is screw rod that B puts into hot-forming under high temperature by whole mould, and hot press molding pressure is 17GPa, and temperature is 1650 ℃, and the dwell time is 150 seconds;
C by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain the screw rod that this comparative example method 1 is manufactured.
Method 2:
A puts into superhard alloy combination block hollow cylinder cavity mold by above-mentioned screw rod raw material and seals;
It is stainless steel right cylinder that B puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 17GPa, and temperature is 1650 ℃, and the dwell time is 150 seconds;
C is screw rod by hot-forming good stainless steel right cylinder with the machine-shaping of diamond sharpener;
D by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain the screw rod that this comparative example method 2 is manufactured.
The hardness of the screw rod that this comparative example manufactures and wear resistance data are in table 2.
Table 2 embodiment 3 ~ 4 and comparative example's 3 ~ 4 hardness and wear resistance
Can find out from the test result of table 2, the hardness of cubic boron nitride material screw rod of the present invention and wear resisting property are obviously better than single stainless steel screw rod.
Embodiment 5
In the present embodiment, cubic boron nitride material comprises:
50 parts of order numbers are that 1000 object 9Cr18MoV powder of stainless steel and 50 parts of order numbers are 1000 object 38CrMoAl powder of stainless steel, 10 parts of order numbers are 1500 object cubic boron nitride powders, 8 parts of order numbers are 2000 object tri-ferrous carbide powder, 5 parts of order numbers are the boron micro mist that 1250 orders, purity are 99.8%, and 5 parts of order numbers are 1250 object alumina powders.
Adopt respectively following method to manufacture screw rod:
Method 1:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block synthetic cavity mould by the above-mentioned raw material mixing and seals;
It is screw rod that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 16.5GPa, and temperature is 1680 ℃, and the dwell time is 155 seconds;
D by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 1 is manufactured.
Method 2:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block hollow cylinder cavity mold by the above-mentioned raw material mixing and seals;
It is right cylinder cubic boron nitride material that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 16.5GPa, and temperature is 1680 ℃, and the dwell time is 155 seconds;
D is screw rod by hot-forming good right cylinder cubic boron nitride material with the machine-shaping of diamond sharpener;
E by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 2 is manufactured.
The hardness of the cubic boron nitride material screw rod of more than manufacturing and wear resistance data are in table 3.
Embodiment 6
In the present embodiment, cubic boron nitride material comprises:
50 parts of order numbers are that 500 object SKH-9 High Speed Steel Powders and 50 parts of order numbers are 500 object 38CrMoAl powder of stainless steel, 20 parts of order numbers are 1500 object cubic boron nitride powders, 10 parts of order numbers are 2000 object tri-ferrous carbide powder, 3 parts of order numbers are the boron micro mist that 1500 orders, purity are 99.8%, and 5 parts of order numbers are 1500 object alumina powders.
Adopt respectively following method to manufacture screw rod:
Method 1:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block synthetic cavity mould by the above-mentioned raw material mixing and seals;
It is screw rod that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 17.5GPa, and temperature is 1700 ℃, and the dwell time is 165 seconds;
D by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 1 is manufactured.
Method 2:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block hollow cylinder cavity mold by the above-mentioned raw material mixing and seals;
It is right cylinder cubic boron nitride material that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 17.5GPa, and temperature is 1700 ℃, and the dwell time is 165 seconds;
D is screw rod by hot-forming good right cylinder cubic boron nitride material with the machine-shaping of diamond sharpener;
E by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 2 is manufactured.
The hardness of the cubic boron nitride material screw rod of more than manufacturing and wear resistance data are in table 3.
Embodiment 7
In the present embodiment, cubic boron nitride material comprises:
50 parts of order numbers are that 500 object SKH-9 High Speed Steel Powders and 50 parts of order numbers are 500 object 38CrMoAl powder of stainless steel, 25 parts of order numbers are 2000 object cubic boron nitride powders, 10 parts of order numbers are 2000 object tri-ferrous carbide powder, 5 parts of order numbers are the boron micro mist that 2000 orders, purity are 99.8%, and 5 parts of order numbers are 1500 object alumina powders.
Adopt respectively following method to manufacture screw rod:
Method 1:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block synthetic cavity mould by the above-mentioned raw material mixing and seals;
It is screw rod that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 18GPa, and temperature is 1800 ℃, and the dwell time is 165 seconds;
D by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 1 is manufactured.
Method 2:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block hollow cylinder cavity mold by the above-mentioned raw material mixing and seals;
It is right cylinder cubic boron nitride material that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 18GPa, and temperature is 1800 ℃, and the dwell time is 165 seconds;
D is screw rod by hot-forming good right cylinder cubic boron nitride material with the machine-shaping of diamond sharpener;
E by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 2 is manufactured.
The hardness of the cubic boron nitride material screw rod of more than manufacturing and wear resistance data are in table 3.
Embodiment 8
In the present embodiment, cubic boron nitride material comprises:
50 parts of order numbers are that 1000 object SKH-9 High Speed Steel Powders and 50 parts of order numbers are 1000 object 38CrMoAl powder of stainless steel, 20 parts of order numbers are 2000 object cubic boron nitride powders, 10 parts of order numbers are 2000 object tri-ferrous carbide powder, 8 parts of order numbers are the boron micro mist that 2000 orders, purity are 99.9%, and 5 parts of order numbers are 2000 object alumina powders.
Adopt respectively following method to manufacture screw rod:
Method 1:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block synthetic cavity mould by the above-mentioned raw material mixing and seals;
It is screw rod that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 18GPa, and temperature is 1800 ℃, and the dwell time is 175 seconds;
D by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 1 is manufactured.
Method 2:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block hollow cylinder cavity mold by the above-mentioned raw material mixing and seals;
It is right cylinder cubic boron nitride material that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 18GPa, and temperature is 1800 ℃, and the dwell time is 175 seconds;
D is screw rod by hot-forming good right cylinder cubic boron nitride material with the machine-shaping of diamond sharpener;
E by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 2 is manufactured.
The hardness of the cubic boron nitride material screw rod of more than manufacturing and wear resistance data are in table 3.
Table 3 embodiment 5 ~ 8 hardness and wear resistance
From the test result of table 3, can find out that the hardness of cubic boron nitride screw rod of the present invention and wear resisting property are obviously better than single stainless steel screw rod.
Embodiment 9
In the present embodiment, cubic boron nitride material comprises:
50 parts of order numbers are that 800 object SKH-9 High Speed Steel Powders and 50 parts of order numbers are 800 object 38CrMoAl powder of stainless steel, 60 parts of order numbers are 1500 object cubic boron nitride powders, 20 parts of order numbers are 2500 object tri-ferrous carbide powder, and 2 parts of order numbers are the boron micro mist that 2500 orders, purity are 99.6%.
Adopt respectively following method to manufacture screw rod:
Method 1:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block synthetic cavity mould by the above-mentioned raw material mixing and seals;
It is screw rod that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 14GPa, and temperature is 1300 ℃, and the dwell time is 180 seconds;
D by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 1 is manufactured.
Method 2:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block hollow cylinder cavity mold by the above-mentioned raw material mixing and seals;
It is right cylinder cubic boron nitride material that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 14GPa, and temperature is 1300 ℃, and the dwell time is 180 seconds;
D is screw rod by hot-forming good right cylinder cubic boron nitride material with the machine-shaping of diamond sharpener;
E by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 2 is manufactured.
Embodiment 10
In the present embodiment, cubic boron nitride material comprises:
100 parts of order numbers are 600 object SKH-9 High Speed Steel Powders, and 30 parts of order numbers are 1200 object cubic boron nitride powders, and 15 parts of order numbers are 1800 object tri-ferrous carbide powder, and 3 parts of order numbers are the boron micro mist that 2500 orders, purity are 99.7%.
Adopt respectively following method to manufacture screw rod:
Method 1:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block synthetic cavity mould by the above-mentioned raw material mixing and seals;
It is screw rod that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 12GPa, and temperature is 1100 ℃, and the dwell time is 100 seconds;
D by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 1 is manufactured.
Method 2:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block hollow cylinder cavity mold by the above-mentioned raw material mixing and seals;
It is right cylinder cubic boron nitride material that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 12GPa, and temperature is 1100 ℃, and the dwell time is 100 seconds;
D is screw rod by hot-forming good right cylinder cubic boron nitride material with the machine-shaping of diamond sharpener;
E by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 2 is manufactured.
Embodiment 11
In the present embodiment, cubic boron nitride material comprises:
50 parts of order numbers are that 900 object 9Cr18MoV powder of stainless steel and 50 parts of order numbers are 900 object 38CrMoAl powder of stainless steel, 10 parts of order numbers are 1800 object cubic boron nitride powders, 8 parts of order numbers are 2200 object tri-ferrous carbide powder, 5 parts of order numbers are the boron micro mist that 2200 orders, purity are 99.8%, and 5 parts of order numbers are 2500 object alumina powders.
Adopt respectively following method to manufacture screw rod:
Method 1:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block synthetic cavity mould by the above-mentioned raw material mixing and seals;
It is screw rod that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 20GPa, and temperature is 2100 ℃, and the dwell time is 200 seconds;
D by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 1 is manufactured.
Method 2:
A, using above-mentioned cubic boron nitride material as raw material, puts into superhard alloy tank according to said ratio and mixes;
B puts into superhard alloy combination block hollow cylinder cavity mold by the above-mentioned raw material mixing and seals;
It is right cylinder cubic boron nitride material that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 20GPa, and temperature is 2100 ℃, and the dwell time is 200 seconds;
D is screw rod by hot-forming good right cylinder cubic boron nitride material with the machine-shaping of diamond sharpener;
E by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain the cubic boron nitride material screw rod that the present embodiment method 2 is manufactured.
Experimental results show that, screw rod provided by the invention than common stainless steel screw rod more firmly, more wear-resisting, be 5 ~ 6 times of common screw work-ing life, the materials processing that can fill for height for a long time, the present invention simultaneously, also first using compound as screw rod materials'use to tri-ferrous carbide and cubic boron nitride, has widened the Application Areas of cubic boron nitride and tri-ferrous carbide.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various modifications to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not departing from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (10)
1. a cubic boron nitride material, is characterized in that, is made up of the component that comprises following weight part:
100 parts of powder of stainless steel,
10 ~ 60 parts of cubic boron nitride powders,
5 ~ 20 parts, tri-ferrous carbide powder,
2 ~ 10 parts of sintering aids.
2. cubic boron nitride material according to claim 1, is characterized in that, described powder of stainless steel is selected from one or more in 9Cr18MoV stainless steel, 38CrMoAl stainless steel or SKH-9 rapid steel.
3. cubic boron nitride material according to claim 1 and 2, is characterized in that, the particle diameter of described powder of stainless steel is 500 order ~ 1000 orders;
Described cubic boron nitride powder particle diameter is 1000 ~ 2000 orders;
Described tri-ferrous carbide powder diameter is 1500 order ~ 2500 orders.
4. cubic boron nitride material according to claim 1, is characterized in that, described sintering aid is selected from one or both in boron micro mist, alumina powder.
5. cubic boron nitride material according to claim 4, is characterized in that, described boron micro mist and the particle diameter of alumina powder are 1250 ~ 2500 orders, and the purity of described boron micro mist is more than or equal to 99.6%.
6. the screw rod that in a claim 1 ~ 5, the cubic boron nitride material described in any one is manufactured.
7. a manufacture method for the cubic boron nitride material screw rod described in claim 6, is characterized in that, comprises the following steps:
A is using cubic boron nitride material as raw material, putting into superhard alloy tank according to certain proportioning mixes, wherein, cubic boron nitride material comprises 100 weight part powder of stainless steel, 10 ~ 60 weight part cubic boron nitride powders, 5 ~ 20 weight part tri-ferrous carbide powder, 2 ~ 10 weight part sintering aids;
B puts into superhard alloy combination block synthetic cavity mould by the above-mentioned raw material mixing and seals;
It is screw rod that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 12 ~ 20GPa, and temperature is 1100 ~ 2100 ℃, and the dwell time is 100 ~ 200 seconds;
D by hot-forming good screw rod anneal, quenching and surface spraying processing, obtain cubic boron nitride material screw rod.
8. the manufacture method of cubic boron nitride material screw rod according to claim 7, is characterized in that, in described step C, hot press molding pressure is 14 ~ 18 GPa, and temperature is 1300 ~ 1800 ℃, and the dwell time is 120 ~ 180 seconds.
9. a manufacture method for the cubic boron nitride material screw rod described in claim 6, is characterized in that, comprises the following steps:
A, using cubic boron nitride material as raw material, puts into superhard alloy tank according to certain proportioning and mixes, wherein, cubic boron nitride material comprises 100 parts of powder of stainless steel, 10 ~ 60 parts of cubic boron nitride powders, 5 ~ 20 parts, tri-ferrous carbide powder, 2 ~ 10 parts of sintering aids;
B puts into superhard alloy combination block hollow cylinder cavity mold by the above-mentioned raw material mixing and seals;
It is right cylinder cubic boron nitride material that C puts into hot-forming under high temperature by whole mould, and wherein, hot press molding pressure is 12 ~ 20GPa, and temperature is 1100 ~ 2100 ℃, and the dwell time is 100 ~ 200 seconds;
D is screw rod by hot-forming good right cylinder cubic boron nitride material with sharpener machine-shaping;
E by the good screw rod of machine-shaping anneal, quenching and surface spraying processing, obtain cubic boron nitride material screw rod.
10. the manufacture method of cubic boron nitride material screw rod according to claim 9, is characterized in that, in described step C, hot press molding pressure is 14 ~ 18 GPa, and temperature is 1300 ~ 1800 ℃, and the dwell time is 120 ~ 180 seconds;
In described step D, described sharpener is diamond sharpener.
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