CN101362318A - Method for preparing mono-layer diamond tool - Google Patents
Method for preparing mono-layer diamond tool Download PDFInfo
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- CN101362318A CN101362318A CNA2008102235059A CN200810223505A CN101362318A CN 101362318 A CN101362318 A CN 101362318A CN A2008102235059 A CNA2008102235059 A CN A2008102235059A CN 200810223505 A CN200810223505 A CN 200810223505A CN 101362318 A CN101362318 A CN 101362318A
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Abstract
The invention relates to a preparation method of a single layer diamond tool, in particular to the method for preparing the single layer diamond tool by spraying welding. The preparation method comprises the following steps: the preparation of metal matrices; the spraying of the diamond grain; the preparation of alloy powder colloidal solution; the spray coating of the alloy powder; heating and melting; and finally, the single layer diamond tool is prepared; the preparation method has the advantages that the consumption of the diamond can be greatly reduced, the cost can be reduced, the diamond tool suitable for different processing conditions can be easily manufactured, the composite preparation of the sprayed and coated powder syrup is very convenient, and the service life of the manufactured diamond tool is very long.
Description
Technical field
The present invention relates to a kind of preparation method of mono-layer diamond tool, particularly a kind of method that sprays weldering manufacturing mono-layer diamond tool.
Background technology
Obtain Chinese invention patent [85100286] " diamond surface metallization technology " afterwards from this project technological invention people in 1985, start the multiple metal alloy of research Jin hard rock Biao Mian Tu at home, diamond crystal welding and mono-layer diamond soldering tech upsurge.The above-mentioned all working of general survey, almost all be based upon the interpolation strong carbide forming element that this technological invention people proposes, such as Ti, Zr, Cr, V, Ta, Nb, Hf ... in Cu, Ag base alloy, by alloy and adamantine interfacial reaction, produce corresponding carbide at diamond surface, thereby improved brazing alloy adamantine welding.These work have strengthened greatly that metal matrix has improved the quality of China's diamond tool to adamantine adhesion in the diamond tool, have enlarged the kind of diamond tool.
The present invention is based upon inventor's patent of invention " diamond surface metallization technology " in one's early years just and obtains on state award for inventions " metal alloy is to the adamantine bonding technology " basis, propose one more reasonable, be more suitable for industrialization, have the more MONOCRYSTAL DIAMOND TOOLS manufacturing technology of good quality.
Summary of the invention
The purpose of this invention is to provide a kind of industrialization that is more suitable for, have the more preparation method of the mono-layer diamond tool of good quality.
Above-mentioned purpose of the present invention is achieved through the following technical solutions:
A kind of preparation method of mono-layer diamond tool, its step is as follows:
(1) preparation of metallic matrix
Selected metal matrix material, by the drawing requirement machining moulding of instrument, will need to spray adamantine Surface Machining to surface roughness is Ra1.6～2.0, and cleans out standby;
(2) spraying of diamond particles
The pre-Tu of table face that sprays adamantine metallic matrix at needs applies the inorganic paint of skim, under skin of paint adhesion state, 36 orders～300 purpose abrasive-grade diamonds is sprayed on the surface of the metallic matrix that coating is painted with air-flow; Airing or 100～200 ℃ of oven dry then obtains to be stained with the metallic matrix of diamond particles;
(3) preparation of alloy powder colloidality solution
With granularity is 150 orders～400 purposes, 80～97%wt low-melting-point metal, and the strong carbide forming element of 3～20%wt mixes, and forms mixed powder, and in the gained mixed powder, adding the gasoline rubber weak solution, pulp is after stirring, get the solution powder slurry, airtight stand-by;
(4) spraying of alloy powder
With step (3) gained solution powder slurry, be sprayed at the described top layer that is stained with the metallic matrix of diamond particles of step (2) with air-flow, obtain the diamond spray piece;
(5) heating and melting
Step (4) gained diamond spray piece is placed vacuum 10
-2In the vacuum drying oven of Pa, heating-up temperature is incubated 10 minutes more than the powder fusing point, gets mono-layer diamond tool.
A kind of optimal technical scheme is characterized in that: inorganic paint is phenolic alcohol varnish described in the described step (2).
A kind of optimal technical scheme is characterized in that: 80～97%wt low-melting-point metal described in the described step (3) is one or more among Cu, Ag, Sn, Ni, the Co; The strong carbide forming element of described 3～20%wt is one or more among Ti, Zr, Cr, Ta, Nb, Hf, the V.
A kind of optimal technical scheme is characterized in that: the low-melting-point metal described in the described step (3) is Cu, Sn and the Ni of 90～97%wt, and their weight part ratio is 70～90:5～20:1～3; Described strong carbide forming element is the Ti of 3～10%wt.
A kind of optimal technical scheme is characterized in that: the low-melting-point metal described in the described step (3) is Ag, Cu and the Co of 95～99%wt, and their weight part ratio is 60～80:30～50:0.5～2; Described strong carbide forming element is the Cr of 1～5%wt.
A kind of optimal technical scheme is characterized in that: the sprayed coating thickness of the slurry of solution powder described in the described step (4) is 0.1～1.5mm.
A kind of optimal technical scheme is characterized in that: heating-up temperature is 800～1100 ℃ described in the described step (5).
Beneficial effect
1, spray in advance and be cemented on the metallic matrix based on diamond abrasive grain, diamond abrasive grain will be easy to control at tool surfaces distribution density, avoid diamond abrasive grain to repeat work, reduce adamantine consumption significantly, reduce cost.
2, in the diamond tool diamond abrasive grain go out the sword size, the THICKNESS CONTROL by the alloyed powder slurry of spraying can more easily produce the diamond tool that is suitable for different processing conditions.
3, the preparation of the composition of the alloyed powder slurry of spraying is very convenient, and can select for use has very strong cohesive force to diamond more conveniently, suitable melt temperature is arranged and the alloy adhesive layer of different wearabilities is arranged, and the diamond tool of present technique manufacturing will have very high service life.
The present invention will be further described below by the specific embodiment, but and do not mean that limiting the scope of the invention.
The specific embodiment
Embodiment 1
A kind of preparation method of mono-layer diamond tool, its step is as follows:
(1) preparation of metallic matrix
According to the requirement of the diamond tool of manufacturing, selected 45
#Steel is as metal matrix material, and by the drawing requirement machining moulding of instrument, will need to spray adamantine Surface Machining to surface roughness is Ra1.6, and cleans out standby;
(2) spraying of diamond particles
The Biao Mian Yu Tu that sprays adamantine metallic matrix at needs applies skim phenolic alcohol varnish, under skin of paint adhesion state, abrasive material level 36 order diamonds are sprayed on the surface of the metallic matrix that coating is painted with air-flow, and it is controlled to obtain density, and the mono-layer diamond particle that is evenly distributed is arranged; Airing then, diamond particles will be bonded on the metallic matrix comparatively securely;
(3) preparation of alloy powder colloidality solution
With granularity is 150 purpose low-melting-point metals (Cu, Sn, Ni) and strong carbide forming element (Ti), and proportioning mixes in proportion, and its proportioning is as follows:
The low-melting-point metal of 90%wt is that Cu, Sn, the Ni of 70:20:3 forms by weight part ratio;
The strong carbide forming element of 10%wt is Ti;
And in above-mentioned mixed powder, adding the gasoline rubber weak solution, pulp after stirring, gets the solution powder slurry, and is airtight stand-by;
(4) spraying of alloy powder
With step (3) gained solution powder slurry, be sprayed at the described metallic matrix top layer that is stained with diamond particles of step (2) with air-flow, obtain the diamond spray piece.
At this moment the metal alloy powder slurry that has colloidality will spray in the slit of filling between the diamond particles equably, and very equably bedding whole diamond layer, powder sprayed coating thickness is 1.5mm.
(5) heating and melting
Step (4) gained diamond spray piece is placed vacuum 10
-2In the vacuum drying oven of Pa, 1000 ℃ of heating-up temperatures, be incubated 10 minutes, based on used metal alloy diamond and metallic matrix all there is good wellability, because alloy solution has very strong surface tension, be enough to overcome the gravity of itself, make the alloy-layer that is breeding the mono-layer diamond particle exhibition of assisting equably on complex-shaped matrix surface.
Embodiment 2
A kind of preparation method of mono-layer diamond tool, its step is as follows:
(1) preparation of metallic matrix
According to the requirement of the diamond tool of manufacturing, selected 9CrSi is as metal matrix material, and by the drawing requirement machining moulding of instrument, will need to spray adamantine Surface Machining to surface roughness is Ra2.0, and cleans out standby;
(2) spraying of diamond particles
The Biao Mian Yu Tu that sprays adamantine metallic matrix at needs applies skim phenolic alcohol varnish, under skin of paint adhesion state, abrasive material level 300 order diamonds are sprayed on the surface of the metallic matrix that coating is painted with air-flow, and it is controlled to obtain density, and the mono-layer diamond particle that is evenly distributed is arranged; 100～200 ℃ of oven dry, diamond particles will be bonded on the metallic matrix comparatively securely then;
(3) preparation of alloy powder colloidality solution
With granularity is 400 purpose low-melting-point metals (Cu, Sn, Ni) and strong carbide forming element (Ti), and proportioning mixes in proportion, and its proportioning is as follows:
The low-melting-point metal of 97%wt is that Cu, Sn, the Ni of 90:5:1 forms by weight part ratio;
The strong carbide forming element of 3%wt is Ti;
And in above-mentioned mixed powder, adding the gasoline rubber weak solution, pulp after stirring, gets the solution powder slurry, and is airtight stand-by;
(4) spraying of alloy powder
With step (3) gained solution powder slurry, be sprayed at the described metallic matrix top layer that is stained with diamond particles of step (2) with air-flow, obtain the diamond spray piece.
At this moment the metal alloy powder slurry that has colloidality will spray in the slit of filling between the diamond particles equably, and very equably bedding whole diamond layer, powder sprayed coating thickness is 0.1mm.
(5) heating and melting
Step (4) gained diamond spray piece is placed vacuum 10
-2In the vacuum drying oven of Pa, 1100 ℃ of heating-up temperatures, be incubated 10 minutes, based on used metal alloy diamond and metallic matrix all there is good wellability, because alloy solution has very strong surface tension, be enough to overcome the gravity of itself, make the alloy-layer that is breeding the mono-layer diamond particle exhibition of assisting equably on complex-shaped matrix surface.
Embodiment 3
A kind of preparation method of mono-layer diamond tool, its step is as follows:
(1) preparation of metallic matrix
According to the requirement of the diamond tool of manufacturing, selected 9CrSi is as metal matrix material, and by the drawing requirement machining moulding of instrument, will need to spray adamantine Surface Machining to surface roughness is Ra2.0, and cleans out standby;
(2) spraying of diamond particles
The Biao Mian Yu Tu that sprays adamantine metallic matrix at needs applies skim phenolic alcohol varnish, under skin of paint adhesion state, abrasive material level 300 order diamonds are sprayed on the surface of the metallic matrix that coating is painted with air-flow, and it is controlled to obtain density, and the mono-layer diamond particle that is evenly distributed is arranged; 100～200 ℃ of oven dry, diamond particles will be bonded on the metallic matrix comparatively securely then;
(3) preparation of alloy powder colloidality solution
With granularity is 400 purpose low-melting-point metals (Ag, Cu, Co) and strong carbide forming element (Cr), and proportioning mixes in proportion, and its proportioning is as follows:
The low-melting-point metal of 99%wt is that Ag, Cu, the Co of 80:30:0.5 forms by weight part ratio;
The strong carbide forming element of 1%wt is Cr;
And in above-mentioned mixed powder, adding the gasoline rubber weak solution, pulp after stirring, gets the solution powder slurry, and is airtight stand-by;
(4) spraying of alloy powder
With step (3) gained solution powder slurry, be sprayed at the described metallic matrix top layer that is stained with diamond particles of step (2) with air-flow, obtain the diamond spray piece.
At this moment the metal alloy powder slurry that has colloidality will spray in the slit of filling between the diamond particles equably, and very equably bedding whole diamond layer, powder sprayed coating thickness is 0.1mm.
(5) heating and melting
Step (4) gained diamond spray piece is placed vacuum 10
-2In the vacuum drying oven of Pa, 800 ℃ of heating-up temperatures, be incubated 10 minutes, based on used metal alloy diamond and metallic matrix all there is good wellability, because alloy solution has very strong surface tension, be enough to overcome the gravity of itself, make the alloy-layer that is breeding the mono-layer diamond particle exhibition of assisting equably on complex-shaped matrix surface.
Embodiment 4
A kind of preparation method of mono-layer diamond tool, its step is as follows:
(1) preparation of metallic matrix
According to the requirement of the diamond tool of manufacturing, selected bearing steel is as metal matrix material, and by the drawing requirement machining moulding of instrument, will need to spray adamantine Surface Machining to surface roughness is Ra1.6, and cleans out standby;
(2) spraying of diamond particles
The Biao Mian Yu Tu that sprays adamantine metallic matrix at needs applies skim phenolic alcohol varnish, under skin of paint adhesion state, abrasive material level 36 order diamonds are sprayed on the surface of the metallic matrix that coating is painted with air-flow, and it is controlled to obtain density, and the mono-layer diamond particle that is evenly distributed is arranged; Airing then, diamond particles will be bonded on the metallic matrix comparatively securely;
(3) preparation of alloy powder colloidality solution
With granularity is 150 purpose low-melting-point metals (Ag, Cu, Co) and strong carbide forming element (Cr), and proportioning mixes in proportion, and its proportioning is as follows:
The low-melting-point metal of 95%wt is that Ag, Cu, the Co of 60:50:2 forms by weight part ratio;
The strong carbide forming element of 5%wt is Cr;
And in above-mentioned mixed powder, adding the gasoline rubber weak solution, pulp after stirring, gets the solution powder slurry, and is airtight stand-by;
(4) spraying of alloy powder
With step (3) gained solution powder slurry, be sprayed at the described metallic matrix top layer that is stained with diamond particles of step (2) with air-flow, obtain the diamond spray piece.
At this moment the metal alloy powder slurry that has colloidality will spray in the slit of filling between the diamond particles equably, and very equably bedding whole diamond layer, powder sprayed coating thickness is 1.5mm.
(5) heating and melting
Step (4) gained diamond spray piece is placed vacuum 10
-2In the vacuum drying oven of Pa, 900 ℃ of heating-up temperatures, be incubated 10 minutes, based on used metal alloy diamond and metallic matrix all there is good wellability, because alloy solution has very strong surface tension, be enough to overcome the gravity of itself, make the alloy-layer that is breeding the mono-layer diamond particle exhibition of assisting equably on complex-shaped matrix surface.
Embodiment 5
A kind of preparation method of mono-layer diamond tool, its step is as follows:
(1) preparation of metallic matrix
According to the requirement of the diamond tool of manufacturing, selected 9CrSi is as metal matrix material, and by the drawing requirement machining moulding of instrument, will need to spray adamantine Surface Machining to surface roughness is Ra2.0, and cleans out standby;
(2) spraying of diamond particles
The Biao Mian Yu Tu that sprays adamantine metallic matrix at needs applies skim phenolic alcohol varnish, under skin of paint adhesion state, abrasive material level 300 order diamonds are sprayed on the surface of the metallic matrix that coating is painted with air-flow, and it is controlled to obtain density, and the mono-layer diamond particle that is evenly distributed is arranged; 100～200 ℃ of oven dry, diamond particles will be bonded on the metallic matrix comparatively securely then;
(3) preparation of alloy powder colloidality solution
With granularity is 400 purpose low-melting-point metals (Cu, Sn) and strong carbide forming element (Ti, Cr), and proportioning mixes in proportion, and its proportioning is as follows:
Low-melting-point metal is made up of the Cu of 85%wt and the Sn of 10%wt;
The strong carbide forming element is made up of the Ti of 3%wt and the Cr of 2%wt;
And in above-mentioned mixed powder, adding the gasoline rubber weak solution, pulp after stirring, gets the solution powder slurry, and is airtight stand-by;
(4) spraying of alloy powder
With step (3) gained solution powder slurry, be sprayed at the described metallic matrix top layer that is stained with diamond particles of step (2) with air-flow, obtain the diamond spray piece.
At this moment the metal alloy powder slurry that has colloidality will spray in the slit of filling between the diamond particles equably, and very equably bedding whole diamond layer, powder sprayed coating thickness is 0.5mm.
(5) heating and melting
Step (4) gained diamond spray piece is placed vacuum 10
-2In the vacuum drying oven of Pa, 1000 ℃ of heating-up temperatures, be incubated 10 minutes, based on used metal alloy diamond and metallic matrix all there is good wellability, because alloy solution has very strong surface tension, be enough to overcome the gravity of itself, make the alloy-layer that is breeding the mono-layer diamond particle exhibition of assisting equably on complex-shaped matrix surface.
Embodiment 6
A kind of preparation method of mono-layer diamond tool, its step is as follows:
(1) preparation of metallic matrix
According to the requirement of the diamond tool of manufacturing, selected bearing steel is as metal matrix material, and by the drawing requirement machining moulding of instrument, will need to spray adamantine Surface Machining to surface roughness is Ra1.8, and cleans out standby;
(2) spraying of diamond particles
The Biao Mian Yu Tu that sprays adamantine metallic matrix at needs applies skim phenolic alcohol varnish, under skin of paint adhesion state, abrasive material level 36 order diamonds are sprayed on the surface of the metallic matrix that coating is painted with air-flow, and it is controlled to obtain density, and the mono-layer diamond particle that is evenly distributed is arranged; Airing then, diamond particles will be bonded on the metallic matrix comparatively securely;
(3) preparation of alloy powder colloidality solution
With granularity is 150 purpose low-melting-point metals (Cu) and strong carbide forming element (Ti), and proportioning mixes in proportion, and its proportioning is as follows:
The low-melting-point metal Cu of 95%wt;
The strong carbide forming element Ti of 5%wt;
And in above-mentioned mixed powder, adding the gasoline rubber weak solution, pulp after stirring, gets the solution powder slurry, and is airtight stand-by;
(4) spraying of alloy powder
With step (3) gained solution powder slurry, be sprayed at the described metallic matrix top layer that is stained with diamond particles of step (2) with air-flow, obtain the diamond spray piece.
At this moment the metal alloy powder slurry that has colloidality will spray in the slit of filling between the diamond particles equably, and very equably bedding whole diamond layer, powder sprayed coating thickness is 1mm.
(5) heating and melting
Step (4) gained diamond spray piece is placed vacuum 10
-2In the vacuum drying oven of Pa, 1100 ℃ of heating-up temperatures, be incubated 10 minutes, based on used metal alloy diamond and metallic matrix all there is good wellability, because alloy solution has very strong surface tension, be enough to overcome the gravity of itself, make the alloy-layer that is breeding the mono-layer diamond particle exhibition of assisting equably on complex-shaped matrix surface.
Embodiment 7
A kind of preparation method of mono-layer diamond tool, its step is as follows:
(1) preparation of metallic matrix
According to the requirement of the diamond tool of manufacturing, selected 45
#Steel is as metal matrix material, and by the drawing requirement machining moulding of instrument, will need to spray adamantine Surface Machining to surface roughness is Ra1.6, and cleans out standby;
(2) spraying of diamond particles
The Biao Mian Yu Tu that sprays adamantine metallic matrix at needs applies skim phenolic alcohol varnish, under skin of paint adhesion state, abrasive material level 36 order diamonds are sprayed on the surface of the metallic matrix that coating is painted with air-flow, and it is controlled to obtain density, and the mono-layer diamond particle that is evenly distributed is arranged; Airing then, diamond particles will be bonded on the metallic matrix comparatively securely;
(3) preparation of alloy powder colloidality solution
With granularity is 150 purpose low-melting-point metals (Cu, Sn) and strong carbide forming element (Cr, Zr, Nb), and proportioning mixes in proportion, and its proportioning is as follows:
Low-melting-point metal is made up of the Cu of 70%wt and the Sn of 10%wt;
The strong carbide forming element is made up of the Zr of Cr, the 2%wt of 15%wt and the Nb of 3%wt;
And in above-mentioned mixed powder, adding the gasoline rubber weak solution, pulp after stirring, gets the solution powder slurry, and is airtight stand-by;
(4) spraying of alloy powder
With step (3) gained solution powder slurry, be sprayed at the described metallic matrix top layer that is stained with diamond particles of step (2) with air-flow, obtain the diamond spray piece.
At this moment the metal alloy powder slurry that has colloidality will spray in the slit of filling between the diamond particles equably, and very equably bedding whole diamond layer, powder sprayed coating thickness is 0.1mm.
(5) heating and melting
Step (4) gained diamond spray piece is placed vacuum 10
-2In the vacuum drying oven of Pa, 1100 ℃ of heating-up temperatures, be incubated 10 minutes, based on used metal alloy diamond and metallic matrix all there is good wellability, because alloy solution has very strong surface tension, be enough to overcome the gravity of itself, make the alloy-layer that is breeding the mono-layer diamond particle exhibition of assisting equably on complex-shaped matrix surface.
Embodiment 8
A kind of preparation method of mono-layer diamond tool, its step is as follows:
(1) preparation of metallic matrix
According to the requirement of the diamond tool of manufacturing, selected 9CrSi is as metal matrix material, and by the drawing requirement machining moulding of instrument, will need to spray adamantine Surface Machining to surface roughness is Ra2.0, and cleans out standby;
(2) spraying of diamond particles
The Biao Mian Yu Tu that sprays adamantine metallic matrix at needs applies skim phenolic alcohol varnish, under skin of paint adhesion state, abrasive material level 300 order diamonds are sprayed on the surface of the metallic matrix that coating is painted with air-flow, and it is controlled to obtain density, and the mono-layer diamond particle that is evenly distributed is arranged; 100～200 ℃ of oven dry, diamond particles will be bonded on the metallic matrix comparatively securely then;
(3) preparation of alloy powder colloidality solution
With granularity is 400 purpose low-melting-point metals (Cu, Ni) and strong carbide forming element (Hf, V), and proportioning mixes in proportion, and its proportioning is as follows:
Low-melting-point metal is made up of the Cu of 80%wt and the Ni of 17%wt;
The strong carbide forming element is made up of the Hf of 1%wt and the V of 2%wt;
And in above-mentioned mixed powder, adding the gasoline rubber weak solution, pulp after stirring, gets the solution powder slurry, and is airtight stand-by;
(4) spraying of alloy powder
With step (3) gained solution powder slurry, be sprayed at the described metallic matrix top layer that is stained with diamond particles of step (2) with air-flow, obtain the diamond spray piece.
At this moment the metal alloy powder slurry that has colloidality will spray in the slit of filling between the diamond particles equably, and very equably bedding whole diamond layer, powder sprayed coating thickness is 1.5mm.
(5) heating and melting
Step (4) gained diamond spray piece is placed vacuum 10
-2In the vacuum drying oven of Pa, 800 ℃ of heating-up temperatures, be incubated 10 minutes, based on used metal alloy diamond and metallic matrix all there is good wellability, because alloy solution has very strong surface tension, be enough to overcome the gravity of itself, make the alloy-layer that is breeding the mono-layer diamond particle exhibition of assisting equably on complex-shaped matrix surface.
Embodiment 9
A kind of preparation method of mono-layer diamond tool, its step is as follows:
(1) preparation of metallic matrix
According to the requirement of the diamond tool of manufacturing, selected bearing steel is as metal matrix material, and by the drawing requirement machining moulding of instrument, will need to spray adamantine Surface Machining to surface roughness is Ra1.8, and cleans out standby;
(2) spraying of diamond particles
The Biao Mian Yu Tu that sprays adamantine metallic matrix at needs applies skim phenolic alcohol varnish, under skin of paint adhesion state, abrasive material level 300 order diamonds are sprayed on the surface of the metallic matrix that coating is painted with air-flow, and it is controlled to obtain density, and the mono-layer diamond particle that is evenly distributed is arranged; 100～200 ℃ of oven dry, diamond particles will be bonded on the metallic matrix comparatively securely then;
(3) preparation of alloy powder colloidality solution
With granularity is 400 purpose low-melting-point metals (Cu) and strong carbide forming element (Cr, Ta), and proportioning mixes in proportion, and its proportioning is as follows:
Low-melting-point metal is made up of the Cu of 95%wt;
The strong carbide forming element is made up of the Cr of 4%wt and the Ta of 1%wt;
And in above-mentioned mixed powder, adding the gasoline rubber weak solution, pulp after stirring, gets the solution powder slurry, and is airtight stand-by;
(4) spraying of alloy powder
With step (3) gained solution powder slurry, be sprayed at the described metallic matrix top layer that is stained with diamond particles of step (2) with air-flow, obtain the diamond spray piece.
At this moment the metal alloy powder slurry that has colloidality will spray in the slit of filling between the diamond particles equably, and very equably bedding whole diamond layer, powder sprayed coating thickness is 0.3mm.
(5) heating and melting
Step (4) gained diamond spray piece is placed vacuum 10
-2In the vacuum drying oven of Pa, 900 ℃ of heating-up temperatures, be incubated 10 minutes, based on used metal alloy diamond and metallic matrix all there is good wellability, because alloy solution has very strong surface tension, be enough to overcome the gravity of itself, make the alloy-layer that is breeding the mono-layer diamond particle exhibition of assisting equably on complex-shaped matrix surface.
Result of the test:
Because diamond particles is by powerful soldering, the diamond utilization rate can improve 20～30%.Because diamond particles is evenly distributed, avoid diamond particles to assemble, repeated application can be saved diamond consumption 15～30%, so product cost will significantly reduce, performance obviously improves.
Claims (7)
1, a kind of preparation method of mono-layer diamond tool, its step is as follows:
(1) preparation of metallic matrix
Selected metal matrix material, by the drawing requirement machining moulding of instrument, will need to spray adamantine Surface Machining to surface roughness is Ra1.6～2.0, and cleans out standby;
(2) spraying of diamond particles
The pre-Tu of table face that sprays adamantine metallic matrix at needs applies the inorganic paint of skim, under skin of paint adhesion state, 36 orders～300 purpose abrasive-grade diamonds is sprayed on the surface of the metallic matrix that coating is painted with air-flow; Airing or 100～200 ℃ of oven dry then obtains to be stained with the metallic matrix of diamond particles;
(3) preparation of alloy powder colloidality solution
With granularity is 150 orders～400 purposes, 80～97%wt low-melting-point metal, and the strong carbide forming element of 3～20%wt mixes, and forms mixed powder, and in the gained mixed powder, adding the gasoline rubber weak solution, pulp is after stirring, get the solution powder slurry, airtight stand-by;
(4) spraying of alloy powder
With step (3) gained solution powder slurry, be sprayed at the described top layer that is stained with the metallic matrix of diamond particles of step (2) with air-flow, obtain the diamond spray piece;
(5) heating and melting
Step (4) gained diamond spray piece is placed vacuum 10
-2In the vacuum drying oven of Pa, heating-up temperature is incubated 10 minutes more than the powder fusing point, gets mono-layer diamond tool.
2, the preparation method of mono-layer diamond tool according to claim 1 is characterized in that: inorganic paint is phenolic alcohol varnish described in the described step (2).
3, the preparation method of mono-layer diamond tool according to claim 1 and 2 is characterized in that: 80～97%wt low-melting-point metal described in the described step (3) is one or more among Cu, Ag, Sn, Ni, the Co; The strong carbide forming element of described 3～20%wt is one or more among Ti, Zr, Cr, Ta, Nb, Hf, the V.
4, the preparation method of mono-layer diamond tool according to claim 3 is characterized in that: the low-melting-point metal described in the described step (3) is Cu, Sn and the Ni of 90～97%wt, and their weight part ratio is 70～90:5～20:1～3; Described strong carbide forming element is the Ti of 3～10%wt.
5, the preparation method of mono-layer diamond tool according to claim 3 is characterized in that: the low-melting-point metal described in the described step (3) is Ag, Cu and the Co of 95～99%wt, and their weight part ratio is 60～80:30～50:0.5～2; Described strong carbide forming element is the Cr of 1～5%wt.
6, the preparation method of mono-layer diamond tool according to claim 5 is characterized in that: the sprayed coating thickness of the slurry of solution powder described in the described step (4) is 0.1～1.5mm.
7, the preparation method of mono-layer diamond tool according to claim 6 is characterized in that: heating-up temperature is 800～1100 ℃ described in the described step (5).
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| CN106270894A (en) * | 2016-08-31 | 2017-01-04 | 昆山迈通自动化设备有限公司 | A kind of diamond bit brazing lines |
| CN110370178A (en) * | 2019-07-31 | 2019-10-25 | 冼国强 | A kind of individual particle ordered arrangement electroplating diamond grinding block and preparation method thereof |
| CN111376183A (en) * | 2018-12-27 | 2020-07-07 | 东莞新科技术研究开发有限公司 | Method for treating grinding disc |
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| CN102341347A (en) * | 2009-03-23 | 2012-02-01 | 东洋炭素株式会社 | Carbon material coated with diamond thin film and method for producing same |
| CN102341347B (en) * | 2009-03-23 | 2014-01-08 | 东洋炭素株式会社 | Carbon material coated with diamond thin film and method for producing same |
| CN103464749A (en) * | 2013-09-18 | 2013-12-25 | 彭津 | Processing process of thin-wall diamond engineering drill bit |
| CN103831744A (en) * | 2013-12-30 | 2014-06-04 | 北京市粉末冶金研究所有限责任公司 | Method for manufacturing diamond tools |
| CN106270894A (en) * | 2016-08-31 | 2017-01-04 | 昆山迈通自动化设备有限公司 | A kind of diamond bit brazing lines |
| CN106270894B (en) * | 2016-08-31 | 2018-10-26 | 昆山迈通自动化设备有限公司 | A kind of diamond bit brazing lines |
| CN111376183A (en) * | 2018-12-27 | 2020-07-07 | 东莞新科技术研究开发有限公司 | Method for treating grinding disc |
| CN110370178A (en) * | 2019-07-31 | 2019-10-25 | 冼国强 | A kind of individual particle ordered arrangement electroplating diamond grinding block and preparation method thereof |
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