CN103611879A - Quick manufacturing method of resin casting mold based on SLS (selective laser sintering) resin sand mold - Google Patents
Quick manufacturing method of resin casting mold based on SLS (selective laser sintering) resin sand mold Download PDFInfo
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- CN103611879A CN103611879A CN201310572859.5A CN201310572859A CN103611879A CN 103611879 A CN103611879 A CN 103611879A CN 201310572859 A CN201310572859 A CN 201310572859A CN 103611879 A CN103611879 A CN 103611879A
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Abstract
The invention provides a quick manufacturing method of a resin casting mold based on an SLS (selective laser sintering) resin sand mold. The quick manufacturing method is characterized by comprising the steps of (1) drawing a three-dimensional graph of a concave mold for manufacturing the resin casting mold through a computer according to a casting technical drawing of a casting, and manufacturing the concave mold made from resin sand through SLS quick forming equipment; (2) uniformly coating the inner surface of the concave mold with emulsion paint, and after the paint is dried, polishing and flattening the inner surface of the concave mold through sand paper; and (3) manually coating the inner surface of the concave mold with a surface resin layer with the thickness of 2mm-3mm, then manually coating the inner surface of the concave mold with a back resin layer with the thickness of 20mm-30mm, and after the two resin layers are solidified, removing the concave mold to obtain the resin casting mold. According to the quick manufacturing method disclosed by the invention, the three-dimensional graph of the concave mold for manufacturing the resin casting mold is drawn through the computer, so that the design and modification are facilitated; the SLS quick forming equipment can be used for manufacturing the high-precision concave mold made from resin sand, and the manufacturing period is short.
Description
Technical field
The invention provides a kind of resin casting mould method for fast mfg based on SLS resin bonded sand mould, belong to Materials Processing Engineering technical field.
Background technology
Traditional casting mould manufacture method is broadly divided into two kinds, and a kind of is to manufacture wooden mould, adopts carpenter's technique to manufacture casting mould; Another kind is exactly to adopt metal blank, adopts the methods such as digital control processing, spark machined, car, milling, plane, mill, brill, line cutting processing to manufacture casting mould.Want Design and manufacture and go out a set of qualified mould, need to be by the repeatedly operation correction repeatedly that designs, is worked into mould, therefore traditional mold production process is complicated, fabrication cycle is long, expense is higher and precision is difficult for guaranteeing, sometimes even can cause the waste of mould and material, so traditional mould manufacturing method has some intrinsic shortcoming itself, as high in manufacturing cost, die life is short, the production cycle is long, product improvement is difficult etc.
Summary of the invention
The object of this invention is to provide a kind ofly can overcome above-mentioned defect, technique is simple, crudy good, the cycle the is short resin casting mould method for fast mfg based on SLS resin bonded sand mould.Its technology contents is:
A kind of resin casting mould method for fast mfg based on SLS resin bonded sand mould, it is characterized in that adopting following steps: 1) according to the casting technique drawing of foundry goods, utilize computer drawing to manufacture the graphics of resin casting mould die used, then by SLS rapid forming equipment, made the die of resin sand material; 2) die inner surface is evenly applied with emulsion paint coating, after coating is dry, with sand paper, die inner surface is polished flat; 3) at die inner surface, first pass through manual brushing surface resin layer 2～3mm, and then manual application backing layer resin bed 20～30mm, after two layers of resin layer solidifies, remove die, obtain resin casting mould.
The described resin casting mould method for fast mfg based on SLS resin bonded sand mould, step 3) in, surface resin layer is that the wear-resisting powder of 280～400 object mixes according to the mass ratio of 100:40:15:4:4:210 by epoxy resin, modified multicomponent amine, dibutyl phthalate, γ aminopropyltriethoxy silane, 2-hydroxyl-4-n-octyloxy-benzophenone and granularity, and wherein wear-resisting powder is mixed according to the mass ratio of 2:1 by silicon carbide powder and alumina powder.
The described resin casting mould method for fast mfg based on SLS resin bonded sand mould, step 3), in, the alkali-free glass fibre chopped strand that backing layer resin bed is 3～5mm by epoxy resin, modified multicomponent amine, dibutyl phthalate, γ aminopropyltriethoxy silane and length mixes according to the mass ratio of 100:40:15:4:60.
Compared with prior art, tool has the following advantages in the present invention:
1, utilize computer drawing to manufacture resin casting mould die graphics used, design and modification are convenient;
2, utilize SLS rapid forming equipment, can make the die of high accuracy resin sand material, and the manufacturing cycle is short.
The specific embodiment
Below in conjunction with embodiment, technical solution of the present invention is described further: be the concrete operation step of manufacturing fast resin casting mould below:
Step 1): according to the casting technique drawing of foundry goods, utilize computer drawing to manufacture the graphics of resin casting mould die used, then by SLS rapid forming equipment, made the die of resin sand material;
Step 2): die inner surface is evenly applied with emulsion paint coating, after coating is dry, with sand paper, die inner surface is polished flat;
Step 3): surface resin layer is that the wear-resisting powder of 280～400 object mixes according to the mass ratio of 100:40:15:4:4:210 by epoxy resin, modified multicomponent amine, dibutyl phthalate, γ aminopropyltriethoxy silane, 2-hydroxyl-4-n-octyloxy-benzophenone and granularity, and wherein wear-resisting powder is mixed according to the mass ratio of 2:1 by silicon carbide powder and alumina powder.The alkali-free glass fibre chopped strand that backing layer resin bed is 3～5mm by epoxy resin, modified multicomponent amine, dibutyl phthalate, γ aminopropyltriethoxy silane and length mixes according to the mass ratio of 100:40:15:4:60.While making mould, first at die inner surface, pass through the thick surface resin layer of manual brushing 2.5mm, and then the thick backing layer resin bed of manual application 25mm, after two layers of resin layer solidifies, remove die, obtain resin casting mould.
Claims (3)
1. the resin casting mould method for fast mfg based on SLS resin bonded sand mould, it is characterized in that adopting following steps: 1) according to the casting technique drawing of foundry goods, utilize computer drawing to manufacture the graphics of resin casting mould die used, then by SLS rapid forming equipment, made the die of resin sand material; 2) die inner surface is evenly applied with emulsion paint coating, after coating is dry, with sand paper, die inner surface is polished flat; 3) at die inner surface, first pass through manual brushing surface resin layer 2～3mm, and then manual application backing layer resin bed 20～30mm, after two layers of resin layer solidifies, remove die, obtain resin casting mould.
2. the resin casting mould method for fast mfg based on SLS resin bonded sand mould according to claim 1, it is characterized in that: step 3) in, surface resin layer is that the wear-resisting powder of 280～400 object mixes according to the mass ratio of 100:40:15:4:4:210 by epoxy resin, modified multicomponent amine, dibutyl phthalate, γ aminopropyltriethoxy silane, 2-hydroxyl-4-n-octyloxy-benzophenone and granularity, and wherein wear-resisting powder is mixed according to the mass ratio of 2:1 by silicon carbide powder and alumina powder.
3. the resin casting mould method for fast mfg based on SLS resin bonded sand mould according to claim 1, it is characterized in that: step 3) in, the alkali-free glass fibre chopped strand that backing layer resin bed is 3～5mm by epoxy resin, modified multicomponent amine, dibutyl phthalate, γ aminopropyltriethoxy silane and length mixes according to the mass ratio of 100:40:15:4:60.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310572859.5A CN103611879A (en) | 2013-11-18 | 2013-11-18 | Quick manufacturing method of resin casting mold based on SLS (selective laser sintering) resin sand mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310572859.5A CN103611879A (en) | 2013-11-18 | 2013-11-18 | Quick manufacturing method of resin casting mold based on SLS (selective laser sintering) resin sand mold |
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| CN103611879A true CN103611879A (en) | 2014-03-05 |
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| CN201310572859.5A Pending CN103611879A (en) | 2013-11-18 | 2013-11-18 | Quick manufacturing method of resin casting mold based on SLS (selective laser sintering) resin sand mold |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834357A (en) * | 2016-04-07 | 2016-08-10 | 山东理工大学 | Rapid manufacturing method for resin casting die |
| CN106040962A (en) * | 2016-07-29 | 2016-10-26 | 无锡市三峰仪器设备有限公司 | Instrument casting resin sand enhanced by alkali free glass fibers |
| CN106827524A (en) * | 2017-02-10 | 2017-06-13 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of manufacture method of selective laser sintering polystyrene mould |
| CN107639208A (en) * | 2017-10-12 | 2018-01-30 | 界首市华腾金属铸造有限公司 | A kind of preparation method of alloy evaporative pattern eps foam mould |
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| CN102873276A (en) * | 2012-10-24 | 2013-01-16 | 山东理工大学 | Technology for producing casting core |
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| JPH0780595A (en) * | 1993-09-14 | 1995-03-28 | Achilles Corp | Lost form prototype for casting |
| JPH10249484A (en) * | 1997-03-08 | 1998-09-22 | Yuji Kamimura | Lost foam pattern casting method |
| CN1876581A (en) * | 2005-06-11 | 2006-12-13 | 山东理工大学 | Glass utensil mould production method |
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| CN102658352A (en) * | 2012-03-18 | 2012-09-12 | 山东理工大学 | Method for manufacturing high temperature resistant casting resin-die |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834357A (en) * | 2016-04-07 | 2016-08-10 | 山东理工大学 | Rapid manufacturing method for resin casting die |
| CN106040962A (en) * | 2016-07-29 | 2016-10-26 | 无锡市三峰仪器设备有限公司 | Instrument casting resin sand enhanced by alkali free glass fibers |
| CN106827524A (en) * | 2017-02-10 | 2017-06-13 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of manufacture method of selective laser sintering polystyrene mould |
| CN106827524B (en) * | 2017-02-10 | 2019-09-13 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of manufacturing method of selective laser sintering polystyrene mould |
| CN107639208A (en) * | 2017-10-12 | 2018-01-30 | 界首市华腾金属铸造有限公司 | A kind of preparation method of alloy evaporative pattern eps foam mould |
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