CN105057659A - Molding method of copper base alloy powder ultrathin part - Google Patents
Molding method of copper base alloy powder ultrathin part Download PDFInfo
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- CN105057659A CN105057659A CN201510501705.6A CN201510501705A CN105057659A CN 105057659 A CN105057659 A CN 105057659A CN 201510501705 A CN201510501705 A CN 201510501705A CN 105057659 A CN105057659 A CN 105057659A
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Abstract
The invention discloses a molding method of a copper base alloy powder ultrathin part. Copper base alloy powder and metal mineral powder pellet adhesive are mixed by 10 minutes; a level stainless steel plate with a thickness of 1.5 mm is uniformly punched at intervals of 1.5 mm; the diameters of holes comprise three specifications of 1.5 mm, 2 mm and 2.5 mm; the powder is filled in small holes of the stainless steel plate by a volumetric method, and is leveled by a ruler; a powder filling plate is taken off; the powder is uniformly distributed in a mold cavity; the powder filling height is guaranteed at 0.4 mm; the mold closing, the pressing, the demolding and the treatment are performed by conventional processes; a pressed blank is thermally pressed by a conventional hot pressing method; the double-surface finish grinding is performed to finally guarantee the thickness at 0.10 mm; the molding method adopts the metal mineral powder pellet adhesive and the powder filling mode to mold a part of 0.15 mm through calculation; the compression ratio is 2.5; the powder filling height is 0.4 mm; and the blank molding requirements are satisfied.
Description
Technical field
The present invention relates to the production Technology of the ultra-thin part of a kind of powder metallurgy, particularly the forming method of the ultra-thin part of a kind of copper-base alloy powder, is the forming method of the ultra-thin copper-base alloy powder part of a kind of below size 0.15mm.
Background technology
Ultra-thin copper-base alloy powder part is mainly used in monocrystalline silicon saw blade manufacturing, at present general shaping, hot pressing routinely, fine grinding technology are produced, and its saw blade finally ensures that thickness is at more than 0.30mm, and there is subject matter is that percent defective is higher, quality stability is poor, and waste of raw materials is larger.Realize 0.15mm saw blade once sintered shaping, existing production technology is an insurmountable difficult problem.
Summary of the invention
In order to overcome the defect of above-mentioned prior art, the object of the present invention is to provide the forming method of the ultra-thin part of a kind of copper-base alloy powder, adopt industrial metal breeze pelletizing binder, and by changing shaping cloth powder mode, it is disposable that to realize 0.15mm shaping, finished product thickness is controlled within 0.10mm, and meet the particular/special requirement of blades machining, steady quality is reliable; This technique has the features such as simple to operate, cost is low, to suppress ultra-thin part process stable, with low cost, be applicable to mass production.
To achieve these goals, the technical solution adopted in the present invention is:
A forming method for the ultra-thin part of copper-base alloy powder, comprises the following steps
First step powder is compounding: will containing copper-base alloy powder and metal mining powder pelletizing binder in mass ratio (99-98.5): (1-1.5), carries out mixing 10 minutes; Described copper-base alloy powder copper fiduciary point more than 50%, alloy powder comprises bortz powder, copper powder, tungsten powder or glass putty, and described metal mining powder pelletizing binder comprises industrial fiber element or inorganic aqueous solvent; Industrial fiber element is hydroxypropyl hydroxypropyl methylcellulose, and inorganic aqueous solvent is waterglass;
Second step cloth powder is shaping: employing thickness is the smooth corrosion resistant plate of 1.5mm, evenly punch by interval 1.5mm, the diameter in hole comprises 1.5mm, 2mm, 2.5mm tri-specifications, and by volume powder is contained in corrosion resistant plate aperture place by method, strike off with ruler, take down dress powder plate, powder is evenly distributed in die cavity, ensures that dress powder height is at 0.4mm, then technique carries out matched moulds routinely, compacting, the demoulding, pending;
3rd step follow-up hot pressing fine grinding process: adopt conventional hot press method, the blank of compacting is carried out hot pressing, then carries out two-sided fine grinding, final guarantee thickness is at 0.10mm.
The present invention uses metal mining powder pelletizing binder, special powder distribution device, forming hydraulic press, hot press, through overmolding, fine grinding process, reaches required thin saw blade part.The present invention adopts metal mining powder pelletizing binder and powder dress powder mode, and as calculated, shaping 0.15mm part, compression ratio 2.5, dress powder height 0.4mm, meets blank forming requirements.
Detailed description of the invention
Embodiment one
The production technology of the present embodiment is achieved in that
First step powder is compounding: by copper base diamond alloy powder and metal mining powder pelletizing binder 99:1 in mass ratio, carry out mixing 10 minutes;
Second step cloth powder is shaping: employing thickness is the smooth corrosion resistant plate of 1.5mm, the aperture that diameter is 1.5mm is evenly beaten by interval 1.5mm, by volume powder is contained in corrosion resistant plate aperture place by method, strikes off with ruler, takes down dress powder plate, powder is evenly distributed in die cavity, ensure that dress powder height is at 0.4mm, then technique carries out matched moulds routinely, compacting, the demoulding, pending;
3rd step follow-up hot pressing fine grinding process: adopt conventional hot press method, the blank of compacting is carried out hot pressing, then carries out two-sided fine grinding, final guarantee thickness is at 0.10mm.
The employing metal mining powder pelletizing binder that the present invention adopts and powder dress powder mode, part thickness reaches 0.15mm, meets blank forming requirements.But production efficiency is lower.
Embodiment two
The production technology of this example is achieved in that
First step powder is compounding: by copper base tungsten powder alloy powder and metal mining powder pelletizing binder 98.5%:1.5 in mass ratio, carry out mixing 10 minutes;
Second step cloth powder is shaping: employing thickness is the smooth corrosion resistant plate of 1.5mm, the aperture of diameter 2.5mm is evenly beaten by interval 1.5mm, by volume powder is contained in corrosion resistant plate aperture place by method, strikes off with ruler, takes down dress powder plate, powder is evenly distributed in die cavity, ensure that dress powder height is at 0.4mm, then technique carries out matched moulds routinely, compacting, the demoulding, pending;
3rd step follow-up hot pressing fine grinding process: adopt conventional hot press method, the blank of compacting is carried out hot pressing, then carries out two-sided fine grinding, final guarantee thickness is at 0.10mm.
The employing metal mining powder pelletizing binder that the present invention adopts and powder dress powder mode, part thickness reaches 0.15mm, meets blank forming requirements.But production efficiency is lower, waste product is high.
Embodiment three
The production technology of this example is achieved in that
First step powder is compounding: by copper base glass putty alloy powder and metal mining powder pelletizing binder 99:1 in mass ratio, carry out mixing 10 minutes;
Second step cloth powder is shaping: employing thickness is the smooth corrosion resistant plate of 1.5mm, the aperture that diameter is 2mm is evenly beaten by interval 1.5mm, by volume powder is contained in corrosion resistant plate aperture place by method, strike off with ruler, take down dress powder plate, powder is evenly distributed in die cavity, ensure dress powder height 0.4mm then routinely technique carry out matched moulds, compacting, the demoulding, pending;
3rd step follow-up hot pressing fine grinding process: adopt conventional hot press method, the blank of compacting is carried out hot pressing, then carries out two-sided fine grinding, final guarantee thickness is at 0.10mm.
The employing metal mining powder pelletizing binder that the present invention adopts and powder dress powder mode, part thickness reaches 0.15mm, meets blank forming requirements.Production efficiency is high.
Overall merit three sample results, all can meet product technology requirement.But actually to consider from integrated performance index and producing, the third example approach best results.
Claims (4)
1. a forming method for the ultra-thin part of copper-base alloy powder, is characterized in that, comprise the following steps:
First step powder is compounding: will containing copper-base alloy powder and metal mining powder pelletizing binder in mass ratio (99-98.5): (1-1.5), carries out mixing 10 minutes; Described copper-base alloy powder copper fiduciary point more than 50%, alloy powder comprises bortz powder, copper powder, tungsten powder or glass putty, and described metal mining powder pelletizing binder comprises industrial fiber element or inorganic aqueous solvent; Industrial fiber element is hydroxypropyl hydroxypropyl methylcellulose, and inorganic aqueous solvent is waterglass;
Second step cloth powder is shaping: employing thickness is the smooth corrosion resistant plate of 1.5mm, evenly punch by interval 1.5mm, the diameter in hole comprises 1.5mm, 2mm, 2.5mm tri-specifications, and by volume powder is contained in corrosion resistant plate aperture place by method, strikes off with ruler, take down dress powder plate, powder is evenly distributed in die cavity, ensure dress powder height 0.4mm then routinely technique carry out matched moulds, compacting, the demoulding, pending;
3rd step follow-up hot pressing fine grinding process: adopt conventional hot press method, the blank of compacting is carried out hot pressing, then carries out two-sided fine grinding, final guarantee thickness is at 0.10mm.
2. the forming method of the ultra-thin part of a kind of copper-base alloy powder according to claim 1, is characterized in that,
First step powder is compounding: by copper base diamond alloy powder and metal mining powder pelletizing binder 99:1 in mass ratio, carry out mixing 10 minutes;
Second step cloth powder is shaping: employing thickness is the smooth corrosion resistant plate of 1.5mm, the aperture that diameter is 1.5mm is evenly beaten by interval 1.5mm, by volume powder is contained in corrosion resistant plate aperture place by method, strikes off with ruler, takes down dress powder plate, powder is evenly distributed in die cavity, ensure that dress powder height is at 0.4mm, then technique carries out matched moulds routinely, compacting, the demoulding, pending;
3rd step follow-up hot pressing fine grinding process: adopt conventional hot press method, the blank of compacting is carried out hot pressing, then carries out two-sided fine grinding, final guarantee thickness is at 0.10mm.
3. the forming method of the ultra-thin part of a kind of copper-base alloy powder according to claim 1, is characterized in that,
First step powder is compounding: by copper base tungsten powder alloy powder and metal mining powder pelletizing binder 98.5%:1.5 in mass ratio, carry out mixing 10 minutes;
Second step cloth powder is shaping: employing thickness is the smooth corrosion resistant plate of 1.5mm, the aperture that diameter is 2.5mm is evenly beaten by interval 1.5mm, by volume powder is contained in corrosion resistant plate aperture place by method, strike off with ruler, take down dress powder plate, powder is evenly distributed in die cavity, ensure dress powder height 0.4mm then routinely technique carry out matched moulds, compacting, the demoulding, pending;
3rd step follow-up hot pressing fine grinding process: adopt conventional hot press method, the blank of compacting is carried out hot pressing, then carries out two-sided fine grinding, final guarantee thickness is at 0.10mm.
4. the forming method of the ultra-thin part of a kind of copper-base alloy powder according to claim 1, is characterized in that,
First step powder is compounding: by copper base glass putty alloy powder and metal mining powder pelletizing binder 99:1 in mass ratio, carry out mixing 10 minutes;
Second step cloth powder is shaping: employing thickness is the smooth corrosion resistant plate of 1.5mm, the aperture that diameter is 2mm is evenly beaten by interval 1.5mm, by volume powder is contained in corrosion resistant plate aperture place by method, strikes off with ruler, takes down dress powder plate, powder is evenly distributed in die cavity, ensure that dress powder height is at 0.4mm, then technique carries out matched moulds routinely, compacting, the demoulding, pending;
3rd step follow-up hot pressing fine grinding process: adopt conventional hot press method, the blank of compacting is carried out hot pressing, then carries out two-sided fine grinding, final guarantee thickness is at 0.10mm.
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| CN201510501705.6A CN105057659B (en) | 2015-08-14 | 2015-08-14 | Molding method of copper base alloy powder ultrathin part |
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| CN201510501705.6A CN105057659B (en) | 2015-08-14 | 2015-08-14 | Molding method of copper base alloy powder ultrathin part |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4982720A (en) * | 1988-04-14 | 1991-01-08 | Sanwa Diamond Industrial Co., Ltd. | Cutting saw blade |
| CN101168230A (en) * | 2006-10-27 | 2008-04-30 | 河南富耐克超硬材料有限公司 | Method for manufacturing ultra-hard composite blade |
| CN102211196A (en) * | 2011-06-07 | 2011-10-12 | 南通高欣金属陶瓷复合材料有限公司 | Ceramic reinforced metal matrix abrasion-resisting compound material and preparation method |
| CN104148642A (en) * | 2014-07-24 | 2014-11-19 | 华侨大学 | Ultra-thin diamond saw blade made of rare-earth modified tungsten-base binding agent and manufacturing method of ultra-thin diamond saw blade |
-
2015
- 2015-08-14 CN CN201510501705.6A patent/CN105057659B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4982720A (en) * | 1988-04-14 | 1991-01-08 | Sanwa Diamond Industrial Co., Ltd. | Cutting saw blade |
| CN101168230A (en) * | 2006-10-27 | 2008-04-30 | 河南富耐克超硬材料有限公司 | Method for manufacturing ultra-hard composite blade |
| CN102211196A (en) * | 2011-06-07 | 2011-10-12 | 南通高欣金属陶瓷复合材料有限公司 | Ceramic reinforced metal matrix abrasion-resisting compound material and preparation method |
| CN104148642A (en) * | 2014-07-24 | 2014-11-19 | 华侨大学 | Ultra-thin diamond saw blade made of rare-earth modified tungsten-base binding agent and manufacturing method of ultra-thin diamond saw blade |
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