公开(公告)号：US4798615A

公开(公告)日：1989-01-17

申请号：US919962

申请日：1986-10-17

申请人： Shigemi Fukuta ,  Toshinari Amakasu ,  Ken Ugata ,  Shoichi Yoshino

发明人： Shigemi Fukuta ,  Toshinari Amakasu ,  Ken Ugata ,  Shoichi Yoshino

IPC分类号： B01D39/08 ,  B22C9/08 ,  D03D15/00 ,  B01D29/36 ,  D03D15/04

CPC分类号： B01D39/086 ,  B22C9/086 ,  D03D15/0011 ,  B01D2239/0457 ,  B01D2239/0471 ,  B01D2239/0654

摘要： A filter for molten metal having a high melting point is in the form of a net woven of glass yarns formed by twisting a multiplicity of glass fibers together. The glass fibers contain at least 75 wt. % of SiO.sub.2 and are thermally cured at a thermal shrinkage of 2.5 to 15%. The thermal shrinkage is expressed by (l-l')/.times.100 % wherein l is the length of the fiber before the thermal cure, and l' is the length of the fiber as thermally cured.

摘要翻译： 用于具有高熔点的熔融金属的过滤器是通过将多个玻璃纤维扭曲在一起而形成的玻璃丝的网状织物的形式。 玻璃纤维含有至少75wt。 ％的SiO 2，并且在2.5-15％的热收缩率下热固化。 热收缩率由（1-l'）/ x100％表示，其中l是热固化之前纤维的长度，l'是热固化的纤维的长度。

公开(公告)号：US4078035A

公开(公告)日：1978-03-07

申请号：US712067

申请日：1976-08-05

申请人： Ken Ugata ,  Yasuji Morita ,  Yasuharu Mine ,  Hiroshi Izaki

发明人： Ken Ugata ,  Yasuji Morita ,  Yasuharu Mine ,  Hiroshi Izaki

IPC分类号： B22C7/02 ,  B29C1/08 ,  B29C5/00

CPC分类号： B22C7/02

摘要： A method for making a disposable model for a precision investment casting, which comprises casting a naphthalene or para-dichlorobenzene-containing modeling material into a pattern mold at a temperature of 150.degree. C or less, preferably 80 to 150.degree. C and further preferably at a casting speed of 5 to 0.1 kg/second; the modeling material being optionally admixed with a resin selected from the group consisting of polystyrene, polyethylene, polyvinyl acetate and a mixture thereof as a reinforcing material or comprising a mixture of naphthalene or paradichlorobenzene (preferably 80 to 30% by weight), a wax (preferably 20 to 70% by weight) and the resin as mentioned above (preferably 0.5 to 15% by weight on the basis of the whole weight of the modeling material).

摘要翻译： 一种用于制造精密熔模铸造的一次性模型的方法，其包括在150℃或更低，优选80至150℃的温度下将含有萘或对二氯苯的模塑材料浇铸到图案模具中，并且进一步优选在 铸造速度为5〜0.1kg /秒; 建模材料任选地与选自聚苯乙烯，聚乙烯，聚乙酸乙烯酯及其混合物的树脂作为增强材料混合，或者包含萘或对二氯苯的混合物（优选为80至30重量％），蜡（ 优选为20〜70重量％）和上述树脂（优选为0.5〜15重量％，基于造型材料的整体重量）。

公开(公告)号：US3996991A

公开(公告)日：1976-12-14

申请号：US521533

申请日：1974-11-06

申请人： Ken Ugata ,  Yasuji Morita ,  Yasuharu Mine

发明人： Ken Ugata ,  Yasuji Morita ,  Yasuharu Mine

IPC分类号： B22C7/02 ,  B22C9/04 ,  B22D25/02

CPC分类号： B22C9/04 ,  B22C7/02 ,  B22D25/026

摘要： An investment casting method for making a desired casting of a relatively large size by the use of a mold of one-piece construction within close dimensions, which comprises preparing a thermally fusible pattern which is a replica of the desired casting, forming a refractory investment enveloping the thermally fusible pattern, melting the thermally fusible pattern out of the investment leaving a cavity in the refractory investment, and heating the investment to provide a rigid ceramic mold of one-piece construction. Melting of the thermally fusible pattern out of the investment is carried out in contact with a vaporized organic solvent without causing the thermally fusible pattern to thermally expand which may otherwise result in formation of cracks in the refractory, investment, that is, mold.

摘要翻译： 一种熔融铸造方法，用于通过在紧密尺寸内使用一体结构的模具来制造相当大尺寸的所需铸件，其包括制备作为所需铸件的复制品的热熔图案，形成难熔投资包封 热熔图案，将热熔图案熔融在投资中留下空腔，并加热投资以提供一体式结构的刚性陶瓷模具。 投入热熔融图案的熔化是在与蒸发的有机溶剂接触的情况下进行的，而不会导致热熔图案热膨胀，否则可能导致在耐火材料，投资，即模具中形成裂纹。