CN1319668C - Cast powder for casting high melting point metal and its usage - Google Patents
Cast powder for casting high melting point metal and its usage Download PDFInfo
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- CN1319668C CN1319668C CNB2005100194440A CN200510019444A CN1319668C CN 1319668 C CN1319668 C CN 1319668C CN B2005100194440 A CNB2005100194440 A CN B2005100194440A CN 200510019444 A CN200510019444 A CN 200510019444A CN 1319668 C CN1319668 C CN 1319668C
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- 239000000843 powder Substances 0.000 title claims abstract description 92
- 238000005266 casting Methods 0.000 title claims abstract description 46
- 238000002844 melting Methods 0.000 title claims abstract description 14
- 230000008018 melting Effects 0.000 title claims description 7
- 239000002184 metal Substances 0.000 title 1
- 239000007788 liquid Substances 0.000 claims abstract description 62
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000010453 quartz Substances 0.000 claims abstract description 45
- 239000002274 desiccant Substances 0.000 claims abstract description 37
- 239000007787 solid Substances 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 238000005058 metal casting Methods 0.000 claims abstract description 12
- 239000011230 binding agent Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000004094 surface-active agent Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000002002 slurry Substances 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 8
- 229910000077 silane Inorganic materials 0.000 claims description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- 239000006004 Quartz sand Substances 0.000 claims description 6
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 6
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 5
- 235000019353 potassium silicate Nutrition 0.000 claims description 5
- 235000011187 glycerol Nutrition 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 238000005495 investment casting Methods 0.000 abstract description 15
- 238000003756 stirring Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 36
- 238000004140 cleaning Methods 0.000 description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 8
- 229910052602 gypsum Inorganic materials 0.000 description 4
- 239000010440 gypsum Substances 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- -1 aluminum trihydrogen phosphate Chemical compound 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 description 2
- 239000013543 active substance Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
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Abstract
本发明涉及一种失蜡精密铸造用材料，尤其涉及一种用于高熔点金属铸造的铸粉及其使用方法，由固体粉末和液体快干剂组成，所述固体粉末由石英粉和高温石英组成，液体快干剂的组成为粘结剂、液体表面活性剂和水混合而成，将固体粉末和液体快干剂均匀混合强力搅拌、真空除气泡、固化、焙烧、取出浇铸，最后进行清洗即得所要铸件。本发明的有益效果是：所述的铸粉质量稳定，性能优异，生产成本低，其所制得的型壳机械强度好，焙烧不开裂、不变形，具有优异的复印性和良好的低温溃散性，浇铸出来的铸件表面十分光滑，无毛边，无飞翅，尺寸精度高，基本无废品。The invention relates to a material for lost wax precision casting, in particular to a casting powder for high-melting point metal casting and its use method, which is composed of solid powder and liquid quick-drying agent, and the solid powder is composed of quartz powder and high-temperature quartz Composition, the composition of the liquid quick-drying agent is a mixture of binder, liquid surfactant and water, uniformly mix the solid powder and liquid quick-drying agent, vigorously stir, vacuum remove air bubbles, solidify, roast, take out and cast, and finally clean Get the casting you want. The beneficial effects of the present invention are: the casting powder has stable quality, excellent performance and low production cost; the molded shell produced by it has good mechanical strength, no cracking or deformation during roasting, excellent copyability and good low-temperature collapse The casting surface is very smooth, no burrs, no fins, high dimensional accuracy, and basically no waste.
Description
技术领域technical field
本发明涉及一种失蜡精密铸造用材料，尤其涉及一种用于高熔点金属铸造的铸粉及其使用方法。The invention relates to a material for lost wax precision casting, in particular to a casting powder for high-melting point metal casting and its application method.
背景技术Background technique
失蜡法精密铸造也称熔模铸造，是一种少切削或无切削的精密铸造工艺，是精密铸造行业中的一项优异的工艺技术，其应用非常广泛。它不仅适用于各种类型、各种合金的精密铸造，而且生产出的铸件尺寸精度、表面质量比其它精密铸造方法要高，甚至其它精密铸造方法难于铸得的复杂、耐高温、不易于加工的铸件，均可采用熔模铸造铸得。熔模精密铸造最大的优点就是由于熔模铸件有着很高的尺寸精度和表面光洁度。Lost wax precision casting, also known as investment casting, is a precision casting process with little or no cutting. It is an excellent technology in the precision casting industry and its application is very wide. It is not only suitable for precision casting of various types and alloys, but also produces castings with higher dimensional accuracy and surface quality than other precision casting methods, even complex, high temperature resistant, and difficult to process. All castings can be cast by investment casting. The biggest advantage of investment casting is that investment castings have high dimensional accuracy and surface finish.
熔模铸造所用铸粉根据其工艺要求又分为多种，其中用于铸造铂、铱、钯、铑等高熔点贵金属首饰的铂金铸粉，由于铸件的特殊性，质量要求最高。但目前我国市场上的铂金铸粉主要都是国外产品，价格十分高昂。少量国内生产的铂金铸粉又普遍存在质量不稳定、性能较差的问题，无法满足实际生产的需要。The casting powder used in investment casting is divided into various types according to its process requirements. Among them, the platinum casting powder used for casting platinum, iridium, palladium, rhodium and other high-melting point precious metal jewelry has the highest quality requirements due to the particularity of the casting. But at present, the platinum casting powder on the Chinese market is mainly foreign products, and the price is very high. A small amount of domestically produced platinum casting powder generally has the problems of unstable quality and poor performance, which cannot meet the needs of actual production.
目前在精密铸造业中使用较多的是石膏粉，在中国专利ZL97108121、ZL94107410、ZL00119619中所公开到的铸造粉均为石膏粉，其主要成分由石膏和石英组成。由于石膏粉的主要组分均为固体粉末，浇注后型壳强度略差，铸件表面欠光滑，精密度不高，不能更好地满足高精度的铸造要求。Gypsum powder is currently used more in the precision casting industry. The casting powder disclosed in Chinese patents ZL97108121, ZL94107410, and ZL00119619 is gypsum powder, and its main components are composed of gypsum and quartz. Since the main components of gypsum powder are solid powder, the strength of the mold shell is slightly worse after pouring, the surface of the casting is not smooth, and the precision is not high, which cannot better meet the requirements of high-precision casting.
发明内容Contents of the invention
本发明所要解决的问题是针对上述现有技术而提出一种用于高熔点金属铸造的铸粉，其使最终铸造的铸件表面光滑，精密度高，能很好地满足高精度的铸造要求。The problem to be solved by the present invention is to propose a casting powder for high-melting point metal casting in view of the above-mentioned prior art, which makes the surface of the final casting smooth and has high precision, and can well meet the high-precision casting requirements.
本发明的另一个目的是提供该高熔点金属铸造的铸粉的使用方法。Another object of the present invention is to provide a method of using the casting powder for casting of refractory metals.
本发明为解决上述提出的问题所采用解决方案为：一种用于高熔点金属铸造的铸粉，其特征在于由固体粉末和液体快干剂组成，其中固体粉末98～98.5重量份，液体快干剂1.5～2重量份，所述固体粉末由石英粉和高温石英组成，高温石英占固体粉末的3～30％(重量)，所述的高温石英是利用高纯度石英砂经1450℃～1750℃高温煅烧后，再机械粉碎研磨而成，液体快干剂的组成及其重量百分含量为粘结剂23％～92.3％、液体表面活性剂0～38.5％和水077％经混合而成。The solution adopted by the present invention to solve the above-mentioned problems is: a casting powder for high-melting point metal casting, which is characterized in that it is composed of solid powder and liquid quick-drying agent, wherein the solid powder is 98-98.5 parts by weight, and the liquid quick-drying agent is 98-98.5 parts by weight. 1.5-2 parts by weight of dry agent, the solid powder is composed of quartz powder and high-temperature quartz, high-temperature quartz accounts for 3-30% (weight) of the solid powder, and the high-temperature quartz is made of high-purity quartz sand through 1450 ° C ~ 1750 After calcining at ℃ high temperature, it is mechanically crushed and ground. The composition and weight percentage of the liquid quick-drying agent are 23%-92.3% of binder, 0-38.5% of liquid surfactant and 0.77% of water. .
按上述方案，所述的粘结剂为液体磷酸盐或液体硅溶胶或水解硅酸乙酯液体或水玻璃任意一种；According to the above scheme, the binder is any one of liquid phosphate or liquid silica sol or hydrolyzed ethyl silicate liquid or water glass;
按上述方案，所述的液体表面活性剂为甘油或硅烷或低分子量聚丙烯酸盐任意一种，According to the above scheme, the liquid surfactant is any one of glycerin or silane or low molecular weight polyacrylate,
按上述方案，所述的固体粉末平均粒度为8～10μm。According to the above scheme, the average particle size of the solid powder is 8-10 μm.
本发明用于高熔点金属铸造的铸粉使用方法的技术方案为：The technical scheme of the method for using casting powder for high melting point metal casting in the present invention is:
首先取料，称取98～98.5份的固体粉末，加入35～40份水和1.5～2份的液体快干剂，固体粉末的由石英粉和高温石英组成，高温石英占固体粉末的3～30％(重量)，所述的高温石英是利用高纯度石英砂经1450℃～1750℃高温煅烧后，再机械粉碎研磨而成，液体快干剂的组成及其重量百分含量为粘结剂23％～92.3％、液体表面活性剂0～38.5％和水0～77％经混合而成，将它们均匀混合强力搅拌10min，真空除气泡3min，将浆体灌入钢筒，再真空除气泡2min，置于吸水粉上固化4h，进炉焙烧8h，取出浇铸，最后进行清洗即得所要铸件。First take the material, weigh 98-98.5 parts of solid powder, add 35-40 parts of water and 1.5-2 parts of liquid quick-drying agent, the solid powder is composed of quartz powder and high-temperature quartz, and high-temperature quartz accounts for 3-3 parts of the solid powder. 30% (weight), the high-temperature quartz is made of high-purity quartz sand after being calcined at a high temperature of 1450 ° C to 1750 ° C, and then mechanically crushed and ground. The composition and weight percentage of the liquid quick-drying agent are binder 23%～92.3%, liquid surfactant 0～38.5% and water 0～77% are mixed. Mix them evenly and vigorously stir for 10 minutes, vacuum remove air bubbles for 3 minutes, pour the slurry into a steel cylinder, and vacuum remove air bubbles 2 minutes, put it on the water-absorbing powder to solidify for 4 hours, put it into the furnace and roast for 8 hours, take it out and cast it, and finally wash it to get the casting you want.
本发明的有益效果是：所述的铸粉质量稳定，性能优异，生产成本低，其所制得的型壳机械强度好，焙烧不开裂、不变形，具有优异的复印性和良好的低温溃散性，浇铸出来的铸件表面十分光滑，无毛边，无飞翅，尺寸精度高，基本无废品。The beneficial effects of the present invention are: the casting powder has stable quality, excellent performance and low production cost; the molded shell produced by it has good mechanical strength, no cracking or deformation during roasting, excellent copyability and good low-temperature collapse The casting surface is very smooth, no burrs, no fins, high dimensional accuracy, and basically no waste.
具体实施方式Detailed ways
一、用于高熔点金属铸造的铸粉的组分1. Composition of casting powder for high melting point metal casting
本发明所设计的用于高熔点金属铸造的铸粉是由固体粉末和液体快干剂两部分组成。The casting powder for high-melting point metal casting designed by the present invention is composed of solid powder and liquid quick-drying agent.
(1)固体粉末 由石英粉和高温石英组成。石英粉是利用SiO2含量大于99.6％的石英砂经分离、提纯和粉碎后精制而成高纯石英粉。高温石英是利用高纯度石英砂经1450℃～1750℃高温煅烧后，再机械粉碎研磨而成。将石英粉和高温石英均匀混合即得到铸粉的固体粉末部分。上述固体粉末的平均粒径为8～10μm之间。(1) Solid powder is composed of quartz powder and high-temperature quartz. Quartz powder is a high-purity quartz powder refined by using quartz sand with a SiO2 content greater than 99.6% after separation, purification and crushing. High-temperature quartz is made of high-purity quartz sand calcined at a high temperature of 1450 ° C to 1750 ° C, and then mechanically crushed and ground. The solid powder part of the casting powder is obtained by uniformly mixing the quartz powder and high-temperature quartz. The average particle diameter of the solid powder is between 8 and 10 μm.
(2)液体快干剂 液体快干剂是铸粉的重要组成部分，它直接影响着产品的操作性能和铸件质量，本发明所用的液体快干剂主要组分为粘结剂，粘结剂可以为液体磷酸二氢铝、液体磷酸三氢铝、液体硅溶胶、硅酸乙酯、水玻璃中的任意一种。所述的液体快干剂中还可以添加液体表面活性剂，液体表面活性剂为水溶性活性剂，包括硅烷、甘油、低分子量聚丙烯酸盐。上述固体粉末和液体快干剂可以配合使用。(2) Liquid quick-drying agent Liquid quick-drying agent is an important part of casting powder, which directly affects the operational performance and casting quality of the product. The main components of the liquid quick-drying agent used in the present invention are binder, binder It can be any one of liquid aluminum dihydrogen phosphate, liquid aluminum trihydrogen phosphate, liquid silica sol, ethyl silicate, and water glass. A liquid surfactant can also be added to the liquid quick-drying agent, and the liquid surfactant is a water-soluble active agent, including silane, glycerin, and low molecular weight polyacrylate. The above-mentioned solid powder and liquid quick-drying agent can be used in conjunction.
二、铸粉的使用方法2. How to use casting powder
首先取料，称取98～98.5份的固体粉末，加入35～40份水和1.5～2份的液体快干剂，固体粉末的由石英粉和高温石英组成，高温石英占固体粉末的3～30％(重量)，液体快干剂的组成及其重量百分含量为粘结剂23％～92.3％、液体表面活性剂0～38.5％和水0～77％经混合而成，将它们均匀混合强力搅拌10min，真空除气泡3min，将浆体灌入钢筒，再真空除气泡2min，置于吸水粉上固化4h，进炉焙烧8h，取出浇铸，最后进行清洗即得所要铸件。First take the material, weigh 98-98.5 parts of solid powder, add 35-40 parts of water and 1.5-2 parts of liquid quick-drying agent, the solid powder is composed of quartz powder and high-temperature quartz, and high-temperature quartz accounts for 3-3 parts of the solid powder. 30% (weight), the composition of the liquid quick-drying agent and its weight percentage are 23% to 92.3% of the binder, 0 to 38.5% of the liquid surfactant and 0 to 77% of the water. Mix vigorously for 10 minutes, remove air bubbles by vacuum for 3 minutes, pour the slurry into a steel cylinder, remove air bubbles by vacuum for 2 minutes, place on water-absorbing powder for curing for 4 hours, bake in the furnace for 8 hours, take out and cast, and finally wash to obtain the desired casting.
下面用非限定性实施例对本发明进一步说明。The present invention is further illustrated below with non-limiting examples.
实施例1Example 1
液体快干剂(硅烷∶液体磷酸三氢铝∶水＝1∶5∶7)13份Liquid quick-drying agent (silane: liquid aluminum trihydrogen phosphate: water = 1:5:7) 13 parts
石英粉 630份Quartz powder 630 parts
高温石英 70份High-temperature quartz 70 parts
水 250份(以上均为重量份)250 parts of water (the above are parts by weight)
按上述比例取250份水、13份液体快干剂混合后，加入700份固体粉末，强力搅拌10min；真空除气泡3min，将浆体灌入钢筒，再真空除气泡2min，置于吸水粉上固化4h，进炉焙烧8h，取出浇铸PT950。清洗完毕后，铸件表面十分光滑，无毛边，尺寸精确，合格率100％。After mixing 250 parts of water and 13 parts of liquid quick-drying agent according to the above ratio, add 700 parts of solid powder, stir vigorously for 10 minutes; vacuum remove air bubbles for 3 minutes, pour the slurry into a steel cylinder, vacuum remove air bubbles for 2 minutes, and place in water-absorbing powder Cured on the top for 4 hours, baked in the furnace for 8 hours, took out and cast PT950. After cleaning, the surface of the casting is very smooth, without burrs, accurate in size, and the pass rate is 100%.
实施例2Example 2
液体快干剂(液体硅溶胶∶水＝3∶10) 13份Liquid quick-drying agent (liquid silica sol: water = 3:10) 13 parts
石英粉 630份Quartz powder 630 parts
高温石英 70份High-temperature quartz 70 parts
水 250份(以上均为重量份)250 parts of water (the above are parts by weight)
按上述比例取250份水、13份液体快干剂混合后，加入700份固体粉末，强力搅拌10min；真空除气泡3min，将浆体灌入钢筒，再真空除气泡2min，置于吸水粉上固化4h，进炉焙烧8h，取出浇铸PT950。清洗完毕后，铸件表面十分光滑，无毛边，尺寸精确，合格率99.2％。After mixing 250 parts of water and 13 parts of liquid quick-drying agent according to the above ratio, add 700 parts of solid powder, stir vigorously for 10 minutes; vacuum remove air bubbles for 3 minutes, pour the slurry into a steel cylinder, vacuum remove air bubbles for 2 minutes, and place in water-absorbing powder Cured on the top for 4 hours, baked in the furnace for 8 hours, took out and cast PT950. After cleaning, the surface of the casting is very smooth, without burrs, and the size is accurate, with a pass rate of 99.2%.
实施例3Example 3
液体快干剂(硅烷∶硅酸乙酯∶水＝5∶5∶3) 13份Liquid quick-drying agent (silane: ethyl silicate: water = 5:5:3) 13 parts
石英粉 630份Quartz powder 630 parts
高温石英 70份High-temperature quartz 70 parts
水 250份(以上均为重量份)250 parts of water (the above are parts by weight)
按上述比例取250份水、13份液体快干剂混合后，加入700份固体粉末，强力搅拌10min；真空除气泡3min，将浆体灌入钢筒，再真空除气泡2min，置于吸水粉上固化4h，进炉焙烧8h，取出浇铸PT950。清洗完毕后，铸件表面十分光滑，无毛边，尺寸精确，合格率99.5％。After mixing 250 parts of water and 13 parts of liquid quick-drying agent according to the above ratio, add 700 parts of solid powder, stir vigorously for 10 minutes; vacuum remove air bubbles for 3 minutes, pour the slurry into a steel cylinder, vacuum remove air bubbles for 2 minutes, and place in water-absorbing powder Cured on the top for 4 hours, baked in the furnace for 8 hours, took out and cast PT950. After cleaning, the surface of the casting is very smooth, free of burrs, accurate in size, and the qualified rate is 99.5%.
实施例4Example 4
液体快干剂(硅酸乙酯∶水＝10∶3) 13份Liquid quick-drying agent (ethyl silicate: water = 10:3) 13 parts
石英粉 630份Quartz powder 630 parts
高温石英 70份High-temperature quartz 70 parts
水 250份(以上均为重量份)250 parts of water (the above are parts by weight)
按上述比例取250份水、13份液体快干剂混合后，加入700份固体粉末，强力搅拌10min；真空除气泡3min，将浆体灌入钢筒，再真空除气泡2min，置于吸水粉上固化4h，进炉焙烧8h，取出浇铸PT950。清洗完毕后，铸件表面十分光滑，无毛边，尺寸精确，合格率99.4％。After mixing 250 parts of water and 13 parts of liquid quick-drying agent according to the above ratio, add 700 parts of solid powder, stir vigorously for 10 minutes; vacuum remove air bubbles for 3 minutes, pour the slurry into a steel cylinder, vacuum remove air bubbles for 2 minutes, and place in water-absorbing powder Cured on the top for 4 hours, baked in the furnace for 8 hours, took out and cast PT950. After cleaning, the surface of the casting is very smooth, without burrs, accurate in size, and the qualified rate is 99.4%.
实施例5Example 5
液体快干剂(低分子聚丙烯酸钠∶液体硅溶胶∶水＝2∶6∶5)13份Liquid quick-drying agent (low molecular weight sodium polyacrylate: liquid silica sol: water = 2:6:5) 13 parts
石英粉 630份Quartz powder 630 parts
高温石英 70份High-temperature quartz 70 parts
水 250份(以上均为重量份)250 parts of water (the above are parts by weight)
按上述比例取250份水、13份液体快干剂混合后，加入700份固体粉末，强力搅拌10min；真空除气泡3min，将浆体灌入钢筒，再真空除气泡2min，置于吸水粉上固化4h，进炉焙烧8h，取出浇铸PT950。清洗完毕后，铸件表面十分光滑，无毛边，尺寸精确，合格率99.5％。After mixing 250 parts of water and 13 parts of liquid quick-drying agent according to the above ratio, add 700 parts of solid powder, stir vigorously for 10 minutes; vacuum remove air bubbles for 3 minutes, pour the slurry into a steel cylinder, vacuum remove air bubbles for 2 minutes, and place in water-absorbing powder Cured on the top for 4 hours, baked in the furnace for 8 hours, took out and cast PT950. After cleaning, the surface of the casting is very smooth, free of burrs, accurate in size, and the qualified rate is 99.5%.
实施例6Example 6
液体快干剂(硅烷∶液体硅溶胶∶水＝2∶6∶5) 13份Liquid quick-drying agent (silane: liquid silica sol: water = 2:6:5) 13 parts
石英粉 600份Quartz powder 600 copies
高温石英 100份High temperature quartz 100 copies
水 250份(以上均为重量份)250 parts of water (the above are parts by weight)
按上述比例取250份水、13份液体快干剂混合后，加入700份固体粉末，强力搅拌10min；真空除气泡3min，将浆体灌入钢筒，再真空除气泡2min，置于吸水粉上固化4h，进炉焙烧8h，取出浇铸PT950。清洗完毕后，铸件表面十分光滑，无毛边，尺寸精确，合格率100％。After mixing 250 parts of water and 13 parts of liquid quick-drying agent according to the above ratio, add 700 parts of solid powder, stir vigorously for 10 minutes; vacuum remove air bubbles for 3 minutes, pour the slurry into a steel cylinder, vacuum remove air bubbles for 2 minutes, and place in water-absorbing powder Cured on the top for 4 hours, baked in the furnace for 8 hours, took out and cast PT950. After cleaning, the surface of the casting is very smooth, without burrs, accurate in size, and the pass rate is 100%.
实施例7Example 7
液体快干剂(硅烷∶液体磷酸三氢铝∶水＝5∶6∶2)13份Liquid quick-drying agent (silane: liquid aluminum trihydrogen phosphate: water = 5:6:2) 13 parts
石英粉 500份Quartz powder 500 parts
高温石英 200份High temperature quartz 200 parts
水 250份(以上均为重量份)250 parts of water (the above are parts by weight)
按上述比例取250份水、13份液体快干剂混合后，加入700份固体粉末，强力搅拌10min；真空除气泡3min，将浆体灌入钢筒，再真空除气泡2min，置于吸水粉上固化4h，进炉焙烧8h，取出浇铸PT950。清洗完毕后，铸件表面十分光滑，无毛边，尺寸精确，合格率100％。After mixing 250 parts of water and 13 parts of liquid quick-drying agent according to the above ratio, add 700 parts of solid powder, stir vigorously for 10 minutes; vacuum remove air bubbles for 3 minutes, pour the slurry into a steel cylinder, vacuum remove air bubbles for 2 minutes, and place in water-absorbing powder Cured on the top for 4 hours, baked in the furnace for 8 hours, took out and cast PT950. After cleaning, the surface of the casting is very smooth, without burrs, accurate in size, and the pass rate is 100%.
实施例8Example 8
液体快干剂(硅烷∶液体磷酸二氢铝＝5∶ 8) 13份Liquid quick-drying agent (silane: liquid aluminum dihydrogen phosphate = 5: 8) 13 parts
石英粉 650份Quartz powder 650 parts
高温石英 50份High temperature quartz 50 copies
水 260份(以上均为重量份)Water 260 parts (the above are parts by weight)
按上述比例取260份水、13份液体快干剂混合后，加入700份固体粉末，强力搅拌10min；真空除气泡3min，将浆体灌入钢筒，再真空除气泡2min，置于吸水粉上固化4h，进炉焙烧8h，取出浇铸PT950。清洗完毕后，铸件表面十分光滑，无毛边，尺寸精确，合格率100％。After mixing 260 parts of water and 13 parts of liquid quick-drying agent according to the above ratio, add 700 parts of solid powder and stir vigorously for 10 minutes; vacuum remove air bubbles for 3 minutes, pour the slurry into a steel cylinder, vacuum remove air bubbles for 2 minutes, and place in water-absorbing powder Cured on the top for 4 hours, baked in the furnace for 8 hours, took out and cast PT950. After cleaning, the surface of the casting is very smooth, without burrs, accurate in size, and the pass rate is 100%.
Claims (5)
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| FR3071423B1 (en) * | 2017-09-22 | 2019-10-18 | Safran | FOUNDRY BARBOTINE |
| CN112275993A (en) * | 2020-10-29 | 2021-01-29 | 兰州理工大学 | A kind of low temperature gel casting material and preparation method thereof |
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|---|---|---|---|---|
| SU610604A1 (en) * | 1975-04-10 | 1978-06-15 | Харьковский Ордена Ленина Политехнический Институт Им.В.И.Ленина | Current-conducting coating for making ceramic casting moulds |
| CN1043897A (en) * | 1989-01-03 | 1990-07-18 | 冯圣贤 | A kind of compound method of pattern casting superficial layer coating |
| CN1077912A (en) * | 1992-04-20 | 1993-11-03 | 太原洗涤剂厂 | Special surfactant for precision-investment casting |
| CN1106321A (en) * | 1994-07-14 | 1995-08-09 | 苏贝蒂 | Mould cast powder for precision found |
| JPH09141387A (en) * | 1995-11-17 | 1997-06-03 | G C:Kk | Phosphate-based investment compound composition for dental purpose |
| CN1173406A (en) * | 1997-06-30 | 1998-02-18 | 浙江大学 | Simple casing tech by lost wax casting |
| CN1203128A (en) * | 1997-06-24 | 1998-12-30 | 戴端维 | Practical precision investment casting powder and its forming technique |
| US6779590B2 (en) * | 2000-03-06 | 2004-08-24 | Den-Mat Corporation | Phosphate investment compositions and methods of use thereof |
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- 2005-09-16 CN CNB2005100194440A patent/CN1319668C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU610604A1 (en) * | 1975-04-10 | 1978-06-15 | Харьковский Ордена Ленина Политехнический Институт Им.В.И.Ленина | Current-conducting coating for making ceramic casting moulds |
| CN1043897A (en) * | 1989-01-03 | 1990-07-18 | 冯圣贤 | A kind of compound method of pattern casting superficial layer coating |
| CN1077912A (en) * | 1992-04-20 | 1993-11-03 | 太原洗涤剂厂 | Special surfactant for precision-investment casting |
| CN1106321A (en) * | 1994-07-14 | 1995-08-09 | 苏贝蒂 | Mould cast powder for precision found |
| JPH09141387A (en) * | 1995-11-17 | 1997-06-03 | G C:Kk | Phosphate-based investment compound composition for dental purpose |
| CN1203128A (en) * | 1997-06-24 | 1998-12-30 | 戴端维 | Practical precision investment casting powder and its forming technique |
| CN1173406A (en) * | 1997-06-30 | 1998-02-18 | 浙江大学 | Simple casing tech by lost wax casting |
| US6779590B2 (en) * | 2000-03-06 | 2004-08-24 | Den-Mat Corporation | Phosphate investment compositions and methods of use thereof |
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