CN115446306A - Feeding and process preparation method of high-copper-content stainless steel powder metallurgy material - Google Patents
Feeding and process preparation method of high-copper-content stainless steel powder metallurgy material Download PDFInfo
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- CN115446306A CN115446306A CN202211209029.1A CN202211209029A CN115446306A CN 115446306 A CN115446306 A CN 115446306A CN 202211209029 A CN202211209029 A CN 202211209029A CN 115446306 A CN115446306 A CN 115446306A
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- 239000000463 material Substances 0.000 title claims abstract description 84
- 239000010935 stainless steel Substances 0.000 title claims abstract description 76
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000008569 process Effects 0.000 title claims abstract description 29
- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000000843 powder Substances 0.000 claims abstract description 50
- 238000002156 mixing Methods 0.000 claims abstract description 41
- 239000000853 adhesive Substances 0.000 claims abstract description 37
- 230000001070 adhesive effect Effects 0.000 claims abstract description 37
- 239000010949 copper Substances 0.000 claims abstract description 23
- 229910052802 copper Inorganic materials 0.000 claims abstract description 23
- 239000004743 Polypropylene Substances 0.000 claims abstract description 13
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 13
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 13
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 13
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 13
- 229920006324 polyoxymethylene Polymers 0.000 claims abstract description 13
- -1 polypropylene Polymers 0.000 claims abstract description 13
- 229920001155 polypropylene Polymers 0.000 claims abstract description 13
- 229940037312 stearamide Drugs 0.000 claims abstract description 13
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 13
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 13
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 13
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011812 mixed powder Substances 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 11
- 238000005238 degreasing Methods 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 238000001746 injection moulding Methods 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 235000006408 oxalic acid Nutrition 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 238000007493 shaping process Methods 0.000 claims abstract description 4
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 claims description 14
- 238000005192 partition Methods 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims 1
- 238000005245 sintering Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract 1
- 230000000844 anti-bacterial effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 244000052769 pathogen Species 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 241000700605 Viruses Species 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920005596 polymer binder Polymers 0.000 description 3
- 239000002491 polymer binding agent Substances 0.000 description 3
- 230000005180 public health Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 230000000840 anti-viral effect Effects 0.000 description 2
- 230000002779 inactivation Effects 0.000 description 2
- 230000002147 killing effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 241001678559 COVID-19 virus Species 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 241000197306 H1N1 subtype Species 0.000 description 1
- 241001397616 Influenza A virus (H1N1) Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 210000004102 animal cell Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/103—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing an organic binding agent comprising a mixture of, or obtained by reaction of, two or more components other than a solvent or a lubricating agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a feeding and process preparation method of a stainless steel powder metallurgy material with high copper content, which comprises the following preparation steps: mixing stainless steel powder and copper powder to obtain mixed powder; mixing polyformaldehyde, high-density polyethylene, ethylene-vinyl acetate copolymer, vinyl bis-stearamide, polypropylene wax micropowder and zinc stearate to prepare a high-molecular adhesive; carrying out zonal banburying on mixed powder formed by mixing stainless steel powder and copper powder as a main material and a high-molecular adhesive, and crushing and granulating the material after banburying processing is finished; putting the raw material particles into injection molding equipment, and molding by adopting an MIM injection mold in an injection molding manner; degreasing the injection molded product blank by an oxalic acid degreasing process; and sintering after degreasing is finished, and finally shaping the sintered product to obtain a finished product, thus finishing processing.
Description
Technical Field
The invention belongs to the technical field of powder metallurgy materials, and relates to a feeding and process preparation method of a stainless steel powder metallurgy material with high copper content.
Background
The invention is made on the basis of the conventional powder metallurgy feeding process technology, and because the copper content in the powder metallurgy material is generally less than or equal to 3 percent, the existing powder metallurgy stainless steel material has no sterilization and disinfection effects and can only achieve certain antirust effect. With the continuous development and application of stainless steel products in the fields of tableware, public health and furniture, the requirements of sterilization and disinfection on stainless steel products become the current mainstream requirements. Silver and copper, the two most popular inorganic antibacterial elements, have broad-spectrum antibacterial and antiviral abilities well known in the art, and have low toxicity to animal cells, and are common additives for preparing antibacterial materials. It was found that pure copper showed excellent antiviral efficiency against both SARS-CoV-2 and influenza A virus (H1N 1).
However, in the fields of tableware, public health and furniture, the stainless steel products are replaced by pure copper, so that the method has the disadvantages of high cost, low strength and poor corrosion resistance, and is impractical. Another method is to add copper to stainless steel in the form of plating or ion implantation to obtain the antibacterial effect. However, with this method, the deterioration of the surface coating significantly affects the antibacterial properties of the stainless steel, resulting in a limited service life. In order to solve the two limitations, copper powder and stainless steel powder are mixed according to a certain proportion, and a stainless steel test material with high copper content is prepared by using a powder metallurgy process. After continuous experiments, the culture solution containing various pathogens such as escherichia coli, H1N1 virus and the like is dripped on a test material, and the concentration of the residual virus is regularly observed. The experiment observation is carried out for 48 hours totally, and the result shows that the copper, the silver and the stainless steel are mixed according to different proportions, so that the copper-stainless steel mixed material with the mass fraction of 20 percent has ideal inactivation effect on various pathogens, and after the experiment is carried out for 6 hours, the virus is reduced to less than 0.01 percent, so that the inactivation on 99.99 percent of virus is realized.
Background art reference paper address: https:// pubmed.ncbi.nlm.nih.gov/34853550/.
In view of the above situation, the invention provides a stainless steel powder metallurgy material with high copper content and 20% of copper prepared by using a powder metallurgy technology and a preparation production process thereof. The antibacterial performance of the mixed material is effective for a long time, and even if the material is continuously damaged in the using process, the mixed material can also keep the killing effect on various pathogens for a long time, and the antirust capability of a salt spray test of more than 48H is realized. The existing powder metallurgy technology is used for mass production, the cost effect is very high, and the popularization and the use are convenient. The product can be used for disinfecting in the fields of tableware, public health, furniture and the like, and has more advantages and competitiveness.
Disclosure of Invention
In order to solve the technical problems, the invention adopts the following technical scheme:
a feeding and process preparation method of a stainless steel powder metallurgy material with high copper content comprises the following preparation steps:
s1: mixing stainless steel powder and copper powder to obtain mixed powder;
s2: mixing polyformaldehyde, high-density polyethylene, ethylene-vinyl acetate copolymer, vinyl bis-stearamide, polypropylene wax micropowder and zinc stearate to prepare a high-molecular adhesive;
s3, carrying out partition banburying on mixed powder formed by mixing stainless steel powder and copper powder as a main material and a high-molecular adhesive, wherein the banburying time is 2H, and the partition temperatures are respectively as follows: the temperature of the first area is 160 +/-5 ℃, the temperature of the second area is 160 +/-5 ℃, the temperature of the third area is 160 +/-5 ℃, and the temperature of the fourth area is 200-210 ℃; crushing and granulating the materials after banburying processing;
s4: putting the raw material granules into injection molding equipment, and molding and processing in an injection molding mode by adopting an MIM injection mold;
s5: degreasing the injection molded product blank by an oxalic acid degreasing process;
s6: and finally, shaping the sintered pattern product to obtain a finished product, and finishing processing.
As a further scheme of the invention: stainless steel powders include, but are not limited to: one of SUS304, SUS316L, or SUS420 stainless steel powder.
As a further scheme of the invention: the mixing ratio of the stainless steel powder to the copper powder is as follows: 75-80% of stainless steel powder and 20-25% of copper powder.
As a further scheme of the invention: the mixing ratio of the main material of the mixed powder to the high-molecular adhesive is as follows: 91-96% of main material and 4-9% of high molecular adhesive.
As a further scheme of the invention: SUS304 stainless steel powder is adopted as the main material, and the mixing proportion is as follows: 80% SUS304 stainless steel powder and 20% copper powder;
and when SUS304 stainless steel powder is adopted as the main material, the mixing proportion of the polymer adhesive is as follows: 84.95 percent of polyformaldehyde, 8.00 percent of high-density polyethylene, 2.50 percent of ethylene-vinyl acetate copolymer, 2.50 percent of vinyl bis stearamide, 2.50 percent of polypropylene wax micropowder and 1.50 percent of zinc stearate;
the mixing proportion of the main material and the high-molecular adhesive is as follows: 95.758 percent of main material and 4.24 percent of high molecular adhesive.
As a further scheme of the invention: SUS316L stainless steel powder is adopted as the main material, and the mixing proportion is as follows: 80% of SUS316L stainless steel powder and 20% of copper powder;
and when SUS316L stainless steel powder is adopted as the main material, the mixing proportion of the high-molecular adhesive is as follows: 87.00 percent of polyformaldehyde, 8.00 percent of high-density polyethylene, 2.50 percent of ethylene-vinyl acetate copolymer, 2.25 percent of vinyl bis stearamide, 1.50 percent of polypropylene wax micropowder and 0.50 percent of zinc stearate;
the mixing ratio of the main material to the high-molecular adhesive is as follows: 91.346% of main material and 8.65% of macromolecular adhesive.
As a further scheme of the invention: SUS420 stainless steel powder is adopted as the main material, and the mixing proportion is as follows: 80% of SUS420 stainless steel powder and 20% of copper powder;
and when SUS420 stainless steel powder is adopted as the main material, the mixing proportion of the high-molecular adhesive is as follows: 84.95 percent of polyformaldehyde, 8.00 percent of high-density polyethylene, 2.50 percent of ethylene-vinyl acetate copolymer, 2.50 percent of vinyl bis stearamide, 2.50 percent of polypropylene wax micropowder and 1.50 percent of zinc stearate;
the mixing proportion of the main material and the high-molecular adhesive is as follows: 92.563% of main material and 4.24% of high-molecular adhesive.
The invention has the beneficial effects that: the high-copper-content mixed stainless steel material prepared by the preparation process disclosed by the invention has long-term effective antibacterial performance, can keep killing effects on various pathogens for a long time even if the material is continuously damaged in the using process, and also realizes the antirust capacity of a salt spray test of more than 48H. The existing powder metallurgy technology is used for mass production, the cost effect is very high, and the popularization and the use are convenient. The product can be used for disinfection cost in the fields of tableware, public customs sanitation, furniture and the like, and has more advantages and competitiveness. The material and the process method can effectively improve the tableware environment and human environment.
Detailed Description
Technical solutions in the embodiments of the present application are clearly and completely described, and it should be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments, and it should be understood that the present application is not limited to the example embodiments disclosed and described herein. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
In the embodiment of the invention, a feeding and process preparation method of a stainless steel powder metallurgy material with high copper content comprises the following preparation steps:
s1: mixing stainless steel powder and copper powder to obtain mixed powder;
s2: mixing polyformaldehyde, high-density polyethylene, ethylene-vinyl acetate copolymer, vinyl bis-stearamide, polypropylene wax micropowder and zinc stearate to prepare a high-molecular adhesive;
s3, carrying out partition banburying on mixed powder formed by mixing stainless steel powder and copper powder as a main material and a high-molecular adhesive, wherein the banburying time is 2H, and the partition temperatures are respectively as follows: the temperature of the first area is 160 +/-5 ℃, the temperature of the second area is 160 +/-5 ℃, the temperature of the third area is 160 +/-5 ℃, and the temperature of the fourth area is 200-210 ℃; crushing and granulating the materials after banburying processing;
s4: putting the raw material granules into injection molding equipment, and molding and processing in an injection molding mode by adopting an MIM injection mold;
s5: degreasing the injection molded product blank by an oxalic acid degreasing process; the specific degreasing process parameters are as follows:
s6: putting the degreased product material into sintering equipment for sintering to form a pattern product corresponding to the pattern, wherein the specific sintering process parameters are as follows:
and finally, shaping the sintered product to obtain a finished product, and finishing the processing.
Further, the mixing ratio of the stainless steel powder and the copper powder is as follows: 75-80% of stainless steel powder and 20-25% of copper powder.
Further, the mixing ratio of the main material of the mixed powder and the high molecular adhesive is as follows: 91-96% of main material and 4-9% of high molecular adhesive.
The invention also provides three embodiment schemes, which specifically comprise the following steps:
the first embodiment is as follows:
in the embodiment, the stainless steel powder in the main material adopts stainless steel powder with the model of SUS304 as a mixed material of a feeding and process preparation method of a stainless steel powder metallurgy material with high copper content; SUS304 stainless steel powder mixed with copper powder in a ratio of 80% to 20% copper powder;
in this embodiment, when SUS304 stainless steel powder is used as the main material, the polymer binder is mixed in the following ratio: 84.95 percent of polyformaldehyde, 8.00 percent of high-density polyethylene, 2.50 percent of ethylene-vinyl acetate copolymer, 2.50 percent of vinyl bis stearamide, 2.50 percent of polypropylene wax micropowder and 1.50 percent of zinc stearate;
the mixing ratio of the main material to the high-molecular adhesive is as follows: 95.758 percent of main material and 4.24 percent of high molecular adhesive;
the specific formula table is as follows:
the second embodiment: in the embodiment, the stainless steel powder in the main material adopts stainless steel powder with the model of SUS316L as a mixed material of the feeding and process preparation method of the stainless steel powder metallurgy material with high copper content; SUS316L stainless steel powder mixed with copper powder at a ratio of 80% to 20% copper powder;
in this embodiment, when SUS316L stainless steel powder is used as the main material, the mixing ratio of the polymer binder is: 87.00 percent of polyformaldehyde, 8.00 percent of high-density polyethylene, 2.50 percent of ethylene-vinyl acetate copolymer, 2.25 percent of vinyl bis stearamide, 1.50 percent of polypropylene wax micropowder and 0.50 percent of zinc stearate;
the mixing ratio of the main material to the high-molecular adhesive is as follows: 91.346% of main material and 8.65% of macromolecular adhesive.
The specific formula table is as follows:
example two: in the embodiment, the stainless steel powder in the main material adopts stainless steel powder with the model of SUS420 as a mixed material of a feeding and process preparation method of a stainless steel powder metallurgy material with high copper content; SUS420 stainless steel powder with a mixing ratio of 80% to copper powder and 20% to copper powder;
in this embodiment, when SUS420 stainless steel powder is used as the main material, the polymer binder is mixed in the following ratio: 84.95 percent of polyformaldehyde, 8.00 percent of high-density polyethylene, 2.50 percent of ethylene-vinyl acetate copolymer, 2.50 percent of vinyl bis stearamide, 2.50 percent of polypropylene wax micropowder and 1.50 percent of zinc stearate;
the mixing proportion of the main material and the high-molecular adhesive is as follows: 92.563% of main material and 4.24% of high-molecular adhesive.
The specific formula table is as follows:
it is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element described by the phrase "comprising a. -" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A feeding and process preparation method of a stainless steel powder metallurgy material with high copper content is characterized by comprising the following preparation steps:
s1: mixing stainless steel powder and copper powder to obtain mixed powder;
s2: mixing polyformaldehyde, high-density polyethylene, ethylene-vinyl acetate copolymer, vinyl bis-stearamide, polypropylene wax micropowder and zinc stearate to prepare a high-molecular adhesive;
s3, carrying out partition banburying on mixed powder formed by mixing stainless steel powder and copper powder as a main material and a high-molecular adhesive, wherein the banburying time is 2H, and the partition temperatures are respectively as follows: the temperature of the first area is 160 +/-5 ℃, the temperature of the second area is 160 +/-5 ℃, the temperature of the third area is 160 +/-5 ℃, and the temperature of the fourth area is 200-210 ℃; crushing and granulating the materials after banburying processing;
s4: putting the raw material granules into injection molding equipment, and molding and processing in an injection molding mode by adopting an MIM injection mold;
s5: degreasing the injection molded product blank by an oxalic acid degreasing process;
s6: and finally, shaping the sintered pattern product to obtain a finished product, and finishing processing.
2. A method of feeding and preparing a high copper content stainless steel powder metallurgy material as claimed in claim 1 wherein, the stainless steel powder is selected from the group consisting of but not limited to: one of SUS304, SUS316L, or SUS420 stainless steel powder.
3. The feeding and process preparation method of the high copper content stainless steel powder metallurgy material according to claim 1, wherein the mixing ratio of the stainless steel powder and the copper powder is as follows: 75-80% of stainless steel powder and 20-25% of copper powder.
4. A feeding and process preparation method of a high copper content stainless steel powder metallurgy material according to claim 1, wherein the mixing ratio of the main material of the mixed powder and the high molecular binder is as follows: 91-96% of main material and 4-9% of high molecular adhesive.
5. A feeding and process preparation method of a stainless steel powder metallurgy material with high copper content according to claim 2, wherein SUS304 stainless steel powder is adopted as the main material, and the mixing ratio is as follows: 80% SUS304 stainless steel powder and 20% copper powder;
and when SUS304 stainless steel powder is adopted as the main material, the mixing proportion of the polymer adhesive is as follows: 84.95 percent of polyformaldehyde, 8.00 percent of high-density polyethylene, 2.50 percent of ethylene-vinyl acetate copolymer, 2.50 percent of vinyl bis-stearamide, 2.50 percent of polypropylene wax micropowder and 1.50 percent of zinc stearate;
the mixing proportion of the main material and the high-molecular adhesive is as follows: 95.758 percent of main material and 4.24 percent of high molecular adhesive.
6. A feeding and process preparation method of stainless steel powder metallurgy material with high copper content as claimed in claim 2, wherein SUS316L stainless steel powder is adopted as main material, and the mixing ratio is: 80% of SUS316L stainless steel powder and 20% of copper powder;
and when SUS316L stainless steel powder is adopted as the main material, the mixing proportion of the high-molecular adhesive is as follows: 87.00 percent of polyformaldehyde, 8.00 percent of high-density polyethylene, 2.50 percent of ethylene-vinyl acetate copolymer, 2.25 percent of vinyl bis-stearamide, 1.50 percent of polypropylene wax micro powder and 0.50 percent of zinc stearate;
the mixing proportion of the main material and the high-molecular adhesive is as follows: 91.346% of main material and 8.65% of high molecular adhesive.
7. A feeding and process preparation method of a high copper content stainless steel powder metallurgy material according to claim 2, wherein SUS420 stainless steel powder is adopted as the main material, and the mixing ratio is: 80% SUS420 stainless steel powder and 20% copper powder;
and when SUS420 stainless steel powder is adopted as the main material, the mixing proportion of the high-molecular adhesive is as follows: 84.95 percent of polyformaldehyde, 8.00 percent of high-density polyethylene, 2.50 percent of ethylene-vinyl acetate copolymer, 2.50 percent of vinyl bis stearamide, 2.50 percent of polypropylene wax micropowder and 1.50 percent of zinc stearate;
the mixing proportion of the main material and the high-molecular adhesive is as follows: 92.563% of main material and 4.24% of high-molecular adhesive.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211209029.1A CN115446306A (en) | 2022-09-30 | 2022-09-30 | Feeding and process preparation method of high-copper-content stainless steel powder metallurgy material |
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| CN202211209029.1A CN115446306A (en) | 2022-09-30 | 2022-09-30 | Feeding and process preparation method of high-copper-content stainless steel powder metallurgy material |
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| CN112453387A (en) * | 2020-11-27 | 2021-03-09 | 深圳市日东科技发展有限公司 | Powder metallurgy-based high-density stainless steel product formula and process thereof |
| US20210154924A1 (en) * | 2018-08-27 | 2021-05-27 | Hewlett-Packard Development Company, L.P. | Binder agent |
| CN114000066A (en) * | 2020-07-27 | 2022-02-01 | 香港大学 | Antibacterial and antiviral copper-containing stainless steel and preparation and application thereof |
| CN114101657A (en) * | 2021-11-12 | 2022-03-01 | 阳江市天骄家庭用品制造有限公司 | Sterilized stainless steel feeding and cutting tool and preparation method thereof |
| CN114226716A (en) * | 2021-12-24 | 2022-03-25 | 阳江市天骄家庭用品制造有限公司 | Feed for preparing antibacterial stainless steel cutting tool, cutting tool and preparation method thereof |
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- 2022-09-30 CN CN202211209029.1A patent/CN115446306A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210154924A1 (en) * | 2018-08-27 | 2021-05-27 | Hewlett-Packard Development Company, L.P. | Binder agent |
| CN114000066A (en) * | 2020-07-27 | 2022-02-01 | 香港大学 | Antibacterial and antiviral copper-containing stainless steel and preparation and application thereof |
| CN112453387A (en) * | 2020-11-27 | 2021-03-09 | 深圳市日东科技发展有限公司 | Powder metallurgy-based high-density stainless steel product formula and process thereof |
| CN114101657A (en) * | 2021-11-12 | 2022-03-01 | 阳江市天骄家庭用品制造有限公司 | Sterilized stainless steel feeding and cutting tool and preparation method thereof |
| CN114226716A (en) * | 2021-12-24 | 2022-03-25 | 阳江市天骄家庭用品制造有限公司 | Feed for preparing antibacterial stainless steel cutting tool, cutting tool and preparation method thereof |
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