CN114247957A - Welding process for corner post diamond pen - Google Patents
Welding process for corner post diamond pen Download PDFInfo
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- CN114247957A CN114247957A CN202111634199.XA CN202111634199A CN114247957A CN 114247957 A CN114247957 A CN 114247957A CN 202111634199 A CN202111634199 A CN 202111634199A CN 114247957 A CN114247957 A CN 114247957A
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- 239000010432 diamond Substances 0.000 title claims abstract description 141
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 135
- 238000003466 welding Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 68
- 150000003839 salts Chemical class 0.000 claims abstract description 42
- 239000002245 particle Substances 0.000 claims abstract description 37
- 229910052742 iron Inorganic materials 0.000 claims abstract description 34
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 238000000576 coating method Methods 0.000 claims abstract description 18
- 239000000956 alloy Substances 0.000 claims abstract description 16
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 16
- 239000011159 matrix material Substances 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 239000010936 titanium Substances 0.000 claims abstract description 7
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 7
- LNSPFAOULBTYBI-UHFFFAOYSA-N [O].C#C Chemical group [O].C#C LNSPFAOULBTYBI-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 6
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000008367 deionised water Substances 0.000 claims abstract description 5
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 5
- 238000004506 ultrasonic cleaning Methods 0.000 claims abstract description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052796 boron Inorganic materials 0.000 claims abstract description 3
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 3
- 239000010941 cobalt Substances 0.000 claims abstract description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 3
- 239000010703 silicon Substances 0.000 claims abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims description 51
- 239000002184 metal Substances 0.000 claims description 51
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 19
- -1 titanium hydride Chemical compound 0.000 claims description 15
- 229910000048 titanium hydride Inorganic materials 0.000 claims description 15
- 238000000227 grinding Methods 0.000 claims description 13
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 11
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 claims description 11
- 229910001626 barium chloride Inorganic materials 0.000 claims description 11
- 239000000460 chlorine Substances 0.000 claims description 11
- 229910052801 chlorine Inorganic materials 0.000 claims description 11
- 239000011780 sodium chloride Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- 229910052987 metal hydride Inorganic materials 0.000 claims description 8
- 150000004681 metal hydrides Chemical class 0.000 claims description 8
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 7
- 239000005011 phenolic resin Substances 0.000 claims description 7
- 229920001568 phenolic resin Polymers 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 5
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims description 5
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 4
- 230000004913 activation Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 claims description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 2
- 238000003723 Smelting Methods 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims description 2
- 238000009835 boiling Methods 0.000 claims description 2
- 239000001110 calcium chloride Substances 0.000 claims description 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 2
- 150000001805 chlorine compounds Chemical group 0.000 claims description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 2
- NNNSKJSUQWKSAM-UHFFFAOYSA-L magnesium;dichlorate Chemical compound [Mg+2].[O-]Cl(=O)=O.[O-]Cl(=O)=O NNNSKJSUQWKSAM-UHFFFAOYSA-L 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims description 2
- 239000001103 potassium chloride Substances 0.000 claims description 2
- 235000011164 potassium chloride Nutrition 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 239000012856 weighed raw material Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims 1
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005219 brazing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 238000007734 materials engineering Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K5/00—Gas flame welding
- B23K5/006—Gas flame welding specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K5/00—Gas flame welding
- B23K5/12—Gas flame welding taking account of the properties of the material to be welded
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K5/00—Gas flame welding
- B23K5/22—Auxiliary equipment, e.g. backings, guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention relates to the technical field of angle column diamond pen forming, in particular to an angle column diamond pen welding process, which comprises the following steps: diamond treatment: taking diamond particles, cleaning the diamond particles by ultrasonic cleaning, then cleaning the diamond particles by deionized water, and drying the diamond particles; coarsening the diamond particles by using dilute hydrochloric acid; diamond coating step: in the diamond coating step, a salt bath titanizing method is adopted; placing the diamond subjected to salt bath infiltration in a vacuum furnace, vacuumizing the vacuum furnace, heating to 900 ℃, and preserving heat for 55-65min to prepare a matrix alloy, wherein the matrix alloy comprises the following raw materials in parts by mass: 5 parts of metallic nickel, 5 parts of metallic cobalt, 3 parts of metallic titanium, 0.5 part of boron and 0.5 part of silicon; a welding step: covering an organic insulating agent layer on the surface of the metallized diamond, sticking the diamond on the welding layer of the iron rod by adopting water glass, and welding by using oxygen-acetylene gas. The welding process has the advantage of firm welding between the diamond and the iron column.
Description
Technical Field
The invention relates to the technical field of angle column diamond pen forming, in particular to an angle column diamond pen welding process.
Background
The diamond grinding wheel dressing pen is a novel tool for dressing grinding wheels. The diamond pen is like the pen in the industry because of the appearance. It and the grinding wheel cutter are the most widely used grinding wheel dressing tools.
The angle post diamond pen among the prior art has adopted diamond and iron prop welded mode to carry out the shaping, has adopted the mode of brazing among the prior art to weld, but the diamond surface can not soak with metal, has leaded to the iron prop to holding power weak to the diamond for diamond is worn and torn easily in the use of diamond pen, consequently, needs to develop a neotype welding process and can solve foretell problem.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a novel welding process of a corner post diamond pen, which can solve the technical problems in the background art.
The concept of the invention adopts the metal layer to permeate on the surface of the diamond, adopts the metal titanium which is easy to react with the carbon in the diamond and can not cause the graphitization of the diamond, the metal titanium and the carbon in the diamond react to form titanium carbide which is evenly permeated on the surface of the diamond, and the metal padding layer is sprayed on the metal iron column, can permeate and infiltrate with the metal iron column and can infiltrate with the carbonized metal layer on the diamond, so that the holding force of the iron column on the diamond can be effectively increased.
The invention is realized by adopting the following technical scheme: a welding process of a corner post diamond pen comprises the following steps:
diamond treatment: taking diamond particles, putting the diamond particles into an acetone solution, adopting an ultrasonic cleaning mode, cleaning the diamond particles by deionized water, and drying the diamond particles;
coarsening the diamond particles by using dilute hydrochloric acid, and cleaning and drying the diamond particles by using deionized water after the coarsening treatment;
carrying out activation treatment on the diamond after coarsening and ultrasonic cleaning, wherein the activation treatment is to place the diamond in a palladium chloride solution for at least 5min, and the concentration of the palladium chloride solution is 0.2 g/L;
diamond coating step: in the diamond coating step, a salt bath titanizing method is adopted, diamond particles, titanium powder and metal salt are weighed, the metal salt is chloride and comprises any combination of barium chloride, sodium chloride and calcium chloride, the diamond particles and the titanium powder metal salt are uniformly mixed and poured into a crucible, a box-type resistance furnace is adopted for heating, the mixture is heated to the melting point of 100-120 ℃ of the mixed salt and then put into the crucible, the crucible is taken out after heat preservation is carried out for 50-65min, and the diamond attached with titanium carbide can be obtained after the attached metal salt is removed;
placing the diamond infiltrated and coated by the salt bath into a vacuum furnace, vacuumizing the vacuum furnace, heating to 900 ℃, preserving heat for 55-65min, slowly cooling to room temperature after heating, and taking out diamond particles;
iron rod preparation: preferably selecting a low-carbon metal iron rod, pretreating the iron rod to be welded with the diamond, and removing oil, stains and cleaning the iron rod in an acetone cleaning mode;
preparing a matrix alloy, wherein the matrix alloy comprises the following raw materials in parts by mass: 5 parts of metallic nickel, 5 parts of metallic cobalt, 3 parts of metallic titanium, 0.5 part of boron and 0.5 part of silicon, smelting and cooling the raw materials to obtain an alloy, atomizing the alloy into matrix alloy powder, spray-welding the alloy powder to the surface of a low-carbon metal iron rod by using a spray welding gun, grinding a spray welding layer, and cleaning;
a welding step: covering an organic insulating agent layer on the surface of the metallized diamond, adhering the diamond on a welding layer of an iron rod by adopting water glass, placing the iron rod adhered with the diamond in a reducing atmosphere, welding by using oxygen-acetylene gas, and obtaining the required corner post diamond pen after the gas welding is finished.
In a preferred embodiment of the present invention, in the diamond coating step, the crucible further includes a chlorine-based mixed salt, where the chlorine-based mixed salt is 25% of magnesium chloride, 25% of potassium chloride, 25% of sodium chlorate and 25% of magnesium chlorate, and the chlorine-based mixed salt is ground and mixed uniformly, and then 2 parts by mass of the raw materials are weighed and laid on the surface of the mixture of diamond and metal salt.
The preferred embodiment of the present invention is that the diamond particles, the titanium powder and the metal salt are 7 to 8 parts by mass, 0.5 to 1.3 parts by mass and 7 to 8 parts by mass, respectively.
The preferred embodiment of the invention is that the metal salt adopts sodium chloride and barium chloride, wherein the purity of the sodium chloride and the barium chloride is more than 99 percent, and the sodium chloride and the barium chloride are added into the crucible in equal mass ratio;
and mixing the diamond, the metal salt and the titanium powder by adopting a grinding mode, and grinding the weighed raw materials for at least 5 min.
In a preferred embodiment of the present invention, after the crucible is maintained at a temperature during the diamond coating step, the diamond particles and the attached metal salt in the crucible are placed in boiling hot water while stirring the water, the attached metal salt is dissolved to obtain diamond coated with metal titanium, and the collected diamond is washed with water and dried.
A preferred embodiment of the present invention is that the organic insulating agent layer is a metal hydride material;
the mass ratio of the metal hydride material to the diamond is 1:100-120, and the metal hydride is uniformly coated on the surface of the diamond particles.
The preferred embodiment of the invention is that the metal hydride adopts titanium hydride powder, and the titanium hydride powder is coated on the surface of the diamond particles;
and meanwhile, the high-temperature-resistant thermosetting phenolic resin serving as a binder is also added, the phenolic resin is uniformly coated on the surface of the titanium hydride powder and is coated with a thin layer, and the moisture is dried after the coating is finished.
Compared with the prior art, the surface of the diamond is coated with the titanium carbide layer, the matrix alloy is sprayed and welded on the metal iron column, and then gas welding is carried out, so that the matrix alloy can be effectively infiltrated with the titanium carbide layer and the metal iron column, the welding effect of the diamond is improved, and the problem of diamond falling off in the using process is solved.
Detailed Description
The present invention is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.
Three groups of examples and one group of comparative examples are preferred in this embodiment, the embodiments of which are as follows:
in the embodiment, the welding process of the diamond and the iron column refers to the process of the invention, only the variables are refined in the embodiment, and the influence of the variables on the welding result is researched through reference comparison of multiple groups of variables.
Example 1
Taking 7 parts of diamond particles, 0.5-part of titanium powder and 7 parts of a mixture of sodium chloride and barium chloride which is compounded in equal mass proportion, uniformly grinding the raw materials, putting the raw materials into a crucible, uniformly paving a layer of chlorine-based mixed salt on the surface of the diamond mixture, wherein the mass part of the chlorine-based mixed salt is 2 parts, preparing the infiltrated diamond by adopting a salt bath method, and then heating and preserving heat in vacuum to prepare the metal diamond;
coating a layer of organic insulating titanium hydride powder on the surface of the prepared diamond, wherein the mass ratio of the titanium hydride powder to the diamond particles is 1:100, and coating phenolic resin on the titanium hydride powder for covering;
preparing a metal matrix material, spray-welding the metal matrix material on a metal iron column, bonding diamonds on a welding surface of the metal iron column by adopting water glass, placing an iron rod bonded with the diamonds in a reducing atmosphere, and performing oxygen-acetylene gas welding to obtain the required corner post diamond pen.
Example 2
Taking 7.5 parts of diamond particles, 0.9 part of titanium powder and 7.5 parts of a mixture of sodium chloride and barium chloride which is compounded in equal mass proportion, uniformly grinding the raw materials, putting the raw materials into a crucible, uniformly paving a layer of chlorine-based mixed salt on the surface of the diamond mixture, wherein the mass part of the chlorine-based mixed salt is 2 parts, preparing infiltrated diamond by adopting a salt bath method, and then performing vacuum heating and heat preservation to prepare the metal diamond;
coating a layer of organic insulating titanium hydride powder on the surface of the prepared diamond, wherein the mass ratio of the titanium hydride powder to the diamond particles is 1:110, and coating phenolic resin on the titanium hydride powder for covering;
preparing a metal matrix material, spray-welding the metal matrix material on a metal iron column, bonding diamonds on a welding surface of the metal iron column by adopting water glass, placing an iron rod bonded with the diamonds in a reducing atmosphere, and performing oxygen-acetylene gas welding to obtain the required corner post diamond pen.
Example 3
Taking 8 parts of diamond particles, 1.3 parts of titanium powder and 8 parts of a mixture of sodium chloride and barium chloride which is compounded in equal mass proportion, uniformly grinding the raw materials, putting the raw materials into a crucible, uniformly paving a layer of chlorine-based mixed salt on the surface of the diamond mixture, wherein the mass part of the chlorine-based mixed salt is 2 parts, preparing the infiltrated diamond by adopting a salt bath method, and then carrying out vacuum heating and heat preservation to prepare the metal diamond;
coating a layer of organic insulating titanium hydride powder on the surface of the prepared diamond, wherein the mass ratio of the titanium hydride powder to the diamond particles is 1:120, and coating phenolic resin on the titanium hydride powder for covering;
preparing a metal matrix material, spray-welding the metal matrix material on a metal iron column, bonding diamonds on a welding surface of the metal iron column by adopting water glass, placing an iron rod bonded with the diamonds in a reducing atmosphere, and performing oxygen-acetylene gas welding to obtain the required corner post diamond pen.
Comparative example
The comparative example adopts a brazing mode for welding, and brazing is the prior art, and is not repeated, so that reference can be made to a prior art document published in superhard materials engineering, vol 2, No. 22 and month 4 2010.
The wear resistance test of the angle cylinder diamond pen is carried out on the products obtained in the three groups of examples and the group of comparative examples, and the following test data are obtained:
by combining the comparative examples, the welding process adopted in the invention can effectively reduce the abrasion loss of the diamond, effectively reduce the falling probability of the diamond and increase the welding firmness of the diamond and the iron column.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (7)
1. A welding process of a corner post diamond pen is characterized in that: the method comprises the following steps:
diamond treatment: taking diamond particles, putting the diamond particles into an acetone solution, adopting an ultrasonic cleaning mode, cleaning the diamond particles by deionized water, and drying the diamond particles;
coarsening the diamond particles by using dilute hydrochloric acid, and cleaning and drying the diamond particles by using deionized water after the coarsening treatment;
carrying out activation treatment on the diamond after coarsening and ultrasonic cleaning, wherein the activation treatment is to place the diamond in a palladium chloride solution for at least 5min, and the concentration of the palladium chloride solution is 0.2 g/L;
diamond coating step: in the diamond coating step, a salt bath titanizing method is adopted, diamond particles, titanium powder and metal salt are weighed, the metal salt is chloride and comprises any combination of barium chloride, sodium chloride and calcium chloride, the diamond particles and the titanium powder metal salt are uniformly mixed and poured into a crucible, a box-type resistance furnace is adopted for heating, the mixture is heated to the melting point of 100-120 ℃ of the mixed salt and then put into the crucible, the crucible is taken out after heat preservation is carried out for 50-65min, and the diamond attached with titanium carbide can be obtained after the attached metal salt is removed;
placing the diamond infiltrated and coated by the salt bath into a vacuum furnace, vacuumizing the vacuum furnace, heating to 900 ℃, preserving heat for 55-65min, slowly cooling to room temperature after heating, and taking out diamond particles;
iron rod preparation: preferably selecting a low-carbon metal iron rod, pretreating the iron rod to be welded with the diamond, and removing oil, stains and cleaning the iron rod in an acetone cleaning mode;
preparing a matrix alloy, wherein the matrix alloy comprises the following raw materials in parts by mass: 5 parts of metallic nickel, 5 parts of metallic cobalt, 3 parts of metallic titanium, 0.5 part of boron and 0.5 part of silicon, smelting and cooling the raw materials to obtain an alloy, atomizing the alloy into matrix alloy powder, spray-welding the alloy powder to the surface of a low-carbon metal iron rod by using a spray welding gun, grinding a spray welding layer, and cleaning;
a welding step: covering an organic insulating agent layer on the surface of the metallized diamond, adhering the diamond on a welding layer of an iron rod by adopting water glass, placing the iron rod adhered with the diamond in a reducing atmosphere, welding by using oxygen-acetylene gas, and obtaining the required corner post diamond pen after the gas welding is finished.
2. The angle post diamond pen welding process according to claim 1, characterized in that: and in the diamond coating step, the crucible also comprises chlorine-based mixed salt, wherein the chlorine-based mixed salt is 25% of magnesium chloride, 25% of potassium chloride, 25% of sodium chlorate and 25% of magnesium chlorate, and the raw materials are weighed and uniformly mixed after being ground, and 2 parts by mass of the raw materials are paved on the surface of the mixture of the diamond and the metal salt.
3. The angle post diamond pen welding process according to claim 1, characterized in that: the mass parts of the diamond particles, the titanium powder and the metal salt are 7-8 parts, 0.5-1.3 parts and 7-8 parts respectively.
4. The angle post diamond pen welding process according to claim 1, characterized in that: the metal salt adopts sodium chloride and barium chloride, wherein the purity of the sodium chloride and the purity of the barium chloride are both more than 99%, and the sodium chloride and the barium chloride are added into the crucible in equal mass ratio;
and mixing the diamond, the metal salt and the titanium powder by adopting a grinding mode, and grinding the weighed raw materials for at least 5 min.
5. The angle post diamond pen welding process according to claim 1, characterized in that: after the heat preservation of the crucible is finished in the diamond coating step, placing diamond particles and attached metal salt in the crucible in boiling hot water, stirring the water, dissolving the attached metal salt to obtain diamond plated with metal titanium, washing the collected diamond with water, and drying.
6. The angle post diamond pen welding process according to claim 1, characterized in that: the organic insulating agent layer is made of metal hydride material;
the mass ratio of the metal hydride material to the diamond is 1:100-120, and the metal hydride is uniformly coated on the surface of the diamond particles.
7. The angle post diamond pen welding process according to claim 1, characterized in that: the metal hydride adopts titanium hydride powder, and the titanium hydride powder is coated on the surfaces of the diamond particles;
and meanwhile, the high-temperature-resistant thermosetting phenolic resin serving as a binder is also added, the phenolic resin is uniformly coated on the surface of the titanium hydride powder and is coated with a thin layer, and the moisture is dried after the coating is finished.
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| CN202111634199.XA CN114247957A (en) | 2021-12-29 | 2021-12-29 | Welding process for corner post diamond pen |
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| CN202111634199.XA CN114247957A (en) | 2021-12-29 | 2021-12-29 | Welding process for corner post diamond pen |
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| JP5127007B1 (en) * | 2012-02-28 | 2013-01-23 | 嘉五郎 小倉 | Method for non-peeling metal coating on diamond surface by chemical reaction |
| CN107914019A (en) * | 2017-10-24 | 2018-04-17 | 广东工业大学 | A kind of iron nickel Al-based agent diamond tool and preparation method thereof |
| CN109930149A (en) * | 2019-04-15 | 2019-06-25 | 东南大学 | A kind of method of diamond particle surfaces salt bath titanizing |
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2021
- 2021-12-29 CN CN202111634199.XA patent/CN114247957A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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