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公开(公告)号：US5114637A
公开(公告)日：1992-05-19
申请号：US477329
申请日：1990-02-08
CPC分类号： B29C39/42 , B29C39/32 , B29C39/405 , B29K2105/0002 , Y10S264/78 , Y10S425/06
摘要： A method and apparatus for moulding a fluid settable material. The apparatus includes male and female mould halves defining between them a mould cavity having an inlet thereto for the introduction of a fluid settable material; between the male and female mould halves of the cavity a seal can be interposed to seal the mould cavity from the atmosphere. At least one vacuum outlet from a mould half leads via an isolation valve to a vacuum source. The method includes the steps of creating a depression in the mould cavity by withdrawing air therefrom through the vacuum outlet via the isolation valve, introducing a fluid settable material into the thus evacuated mould cavity until the mould cavity is wholly filled by the settable material, closing the isolation valve between the vacuum outlet and the vacuum source, injecting a small additional quantity of fluid settable material under pressure into the mould cavity, closing the inlet through which the fluid material is introduced into the mould cavity and allowing the fluid settable material to solidify.
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公开(公告)号：US4747573A
公开(公告)日：1988-05-31
申请号：US71745
申请日：1987-07-09
申请人： Akira Nagashima
发明人： Akira Nagashima
摘要： An inner mold for molding a cylinder having a bore-forming core for forming a cylinder bore, and a shell core for forming a recess in the cylinder that can serve as, for instance, a scavenging passage. Holes are formed in the bore-forming core for allowing the shell core to fittingly engage with the bore-forming core, and the bottom surfaces of each of the holes are arcuately concaved.
摘要翻译： 一种用于模制具有用于形成缸孔的孔形成芯的圆筒的内模，以及用于在气缸中形成可用作例如扫气通道的凹部的壳芯。 孔形成在孔形成芯部中，以允许壳芯与孔形成芯配合地接合，并且每个孔的底表面是弧形凹陷的。
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公开(公告)号：US4842540A
公开(公告)日：1989-06-27
申请号：US160040
申请日：1988-02-24
申请人： Takayoshi Endo , Satoshi Yamada
发明人： Takayoshi Endo , Satoshi Yamada
CPC分类号： B29C45/1676 , B29C45/1615 , B29K2083/005 , B29L2031/26
摘要： A connector housing assembly having a ring-like packing formed integrally with a resin housing member to provide an improved sealing function at a reduced manufacturing cost. The housing is formed by resin molding using male and female molds. In one embodiment of the invention, the first male mold is removed and replaced with another male mole shaped so as to form a hollow portion corresponding to the desired shape of the packing. Rubber material is poured into the hollow portion through lead-in paths in at least one of the female mold or the second male mold. In another embodiment, the two molds used to form the housing are both removed, and the first male mold is replaced with a second male mold defining the hollow portion used to form the packing.
摘要翻译： 一种连接器壳体组件，其具有与树脂壳体构件一体形成的环状填料，以降低的制造成本提供改进的密封功能。 外壳通过使用阳模和阴模的树脂模塑形成。 在本发明的一个实施例中，移除第一阳模并用另一个公痣形状替换，以形成对应于所需填料形状的中空部分。 橡胶材料通过阴模或第二阳模中的至少一个中的引入路径注入中空部分。 在另一个实施例中，用于形成壳体的两个模具都被移除，并且第一阳模被替换为限定用于形成衬垫的中空部分的第二阳模。
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公开(公告)号：US4693446A
公开(公告)日：1987-09-15
申请号：US778321
申请日：1985-09-20
申请人： Henry Orlosky
发明人： Henry Orlosky
CPC分类号： B29D11/00528 , B29C33/0038 , B29C33/0077 , B29C39/24 , B29C39/32 , B29D11/00019 , B29D11/00413 , B29D11/005 , B29D11/00538 , B29L2011/0033 , Y10S425/808
摘要： A clear, cylindrical, flexible gasket having an annular shoulder located on the interior surface thereof, midway between the ends. The gasket is sized to accept two lens half molds, one on either side of said shoulder to form a lens casting cavity. Each side of the shoulder has first and second annular protrusions extending therefrom for contacting and providing an annular double seal along the edges of each of the half molds. The surface of the shoulder which forms the side of the lens casting cavity is curved in order to reduce stress to a minimum during the shrinkage of the lens casting resin during the cure period. In addition, the casting surface of the shoulder is formed such that the final molded lens will have an outer ridge thereon. One end of the cylindrical gasket has an enlarged edge for additional strength and is provided with index markings thereon which extend beyond the edge and down the outer side of the clear gasket. Two identical fill ports are provided on opposite sides of the gasket. A necked down portion is provided at the point where the filling passage connects with the lens casting surface of the shoulder so that as the plastic resin of the lens being molded cures and shrinks, the plastic in the fill passage is automatically severed from the plastic which forms the final plastic lens product.
摘要翻译： 透明的，圆柱形的柔性衬垫，其具有位于其内表面之间的位于端部之间的环形肩部。 垫片的尺寸适于接收两个镜片半模，一个在所述肩部的任一侧上，以形成透镜铸造腔。 肩部的每一侧具有从其延伸的第一和第二环形突起，用于沿着每个半模的边缘接触和提供环形双重密封。 形成透镜铸造腔侧面的肩部的表面是弯曲的，以便在固化期间在透镜浇铸树脂的收缩期间将应力减小到最小。 此外，肩部的铸造表面形成为使得最终模制的透镜在其上具有外脊。 圆柱形垫圈的一端具有用于附加强度的增大的边缘，并且在其上设置有延伸超过清洁垫圈的边缘和向外的折痕标记。 两个相同的填充口设置在垫圈的相对两侧。 在填充通道与肩部的透镜铸造表面连接的位置处设有颈缩部分，使得随着模制的塑料树脂固化和收缩，填充通道中的塑料自动从塑料切断， 形成最终的塑料镜片产品。
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公开(公告)号：US3978181A
公开(公告)日：1976-08-31
申请号：US475023
申请日：1974-05-31
申请人： Klaus-Heinrich Vahle
发明人： Klaus-Heinrich Vahle
IPC分类号： B29C33/00 , B29C39/10 , B29C39/32 , B29C44/12 , B29C53/04 , B29C70/72 , B29D99/00 , B65G39/09 , F16C13/02 , B29D27/04
CPC分类号： F16C13/02 , B29C33/0044 , B29C39/10 , B29C39/32 , B29C44/12 , B29C70/72 , B29D99/0035 , B65G39/09 , B29L2031/324 , F16H2041/246
摘要： A method of making a unitary structure, such as, a conveyor idler, having a heat-sensitive subassembly with at least one moving part therein, such as, a lifetime lubricated bearing structure, wherein the subassembly is preassembled, the preassembled subassembly is placed in a mold, and a plastic, having a sufficiently low temperature of formation to prevent damage to the heat-sensitive subassembly and, upon hardening, a sufficient compressive strength to hold the subassembly together and form a pressure resistant unitary body, such as, a hard polyurethane foam having a compressive strength of at least about 90 kp/mm.sup.2, is formed about the subassembly. A protective covering, such as, a plastic sleeve, resistant to abrasion, can also be placed in the mold and made to adhere to and surround the outside surface of the unitary plastic body during the formation of the unitary plastic body.
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公开(公告)号：US20180043584A1
公开(公告)日：2018-02-15
申请号：US15554906
申请日：2016-03-18
发明人： Jie Feng , Mark W. Brown , Xue Chen , Pankaj Gupta , Dwight D. Latham , Liangkai Ma , Michael T. Malanga , Rujul M. Mehta , Kamesh R. Vyakaranam , Jeffrey D. Wenzel , Jeffery D. Zawisza
CPC分类号： B29C39/32 , B29C39/10 , B29C45/0001 , B29C45/14622 , B29L2023/225 , F16L59/161 , F16L59/163
摘要： The present invention relates to a process to reduce internal stresses in insulation molded onto complex pipes, preferably complex subsea pipe, to reduce cracking in the molded insulation. Insulation materials applies to complex pipes comprising branches, i.e., valves, and the like, may be susceptible to cracking at, or near where the branch connects to the pipe as the coating of insulation material cures or hardens. The process of the present invention aims to reduce post molded cracking by reducing molded in stress at the branch/pipe junction. This is accomplished by providing a preform at or near a branch/pipe junction prior to applying the coating of insulation material.
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公开(公告)号：US5087015A
公开(公告)日：1992-02-11
申请号：US462166
申请日：1990-01-08
申请人： Geoffrey H. Galley
发明人： Geoffrey H. Galley
CPC分类号： B29C39/40 , B29C39/26 , B29C39/32 , B29D11/00057 , Y10S425/808
摘要： A plastics material mold for casting a contact lens from curable material. Disposable male and female mold members (20,22;50,51) define a mold cavity and each having a curved surface (21,23;52,54) for molding respective optical surface of the contact lens, the male mold member having a shoulder (26,53) which is a slidable fit with a generally cylindrical, e.g. frusto-conical, surface (25,55) on a female mold member to permit relative mold member movement during curing without substantially affecting the optical quality of the molded optical surfaces. The sliding fit shoulder and female surface are relatively simple to mold with accuracy and thus permit the edge (29) of the eventual cast lens to be formed relatively reliably and accurately.
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公开(公告)号：US5047199A
公开(公告)日：1991-09-10
申请号：US265847
申请日：1988-11-25
申请人： Jean-Paul Leca , Jean-Yves Barbin
发明人： Jean-Paul Leca , Jean-Yves Barbin
CPC分类号： B29C47/128 , B29C39/006 , B29C39/32 , B29C47/0019 , B29C47/0021 , B29K2033/04
摘要： Gasket used in a fabrication method, wherein a methylmethacrylate prepolymer or a mixture of unsaturated monomers, whose main constituent is methylmethacrylate, or the unsaturated monomer or monomers themselves is (are) introduced into a mold comprised of two parallel plates separated by said gasket, and the mold is brought to a temperature sufficient to complete or carry out the polymerization. The gasket consists of a core of plasticized poly(vinylchloride), said core being sheathed by a thin layer of thermoplastic polymers chosen from among propylene polymers and saturated polymers, said thermoplastic polymer being capable of retaining its elasticity at temperatures ranging from 20.degree. to 120.degree. C. and having a melting or softening point higher than 115.degree. C.
摘要翻译： PCT No.PCT / FR88 / 00049 Sec。 371日期1988年11月25日第 102（e）1988年11月25日日期PCT提交1988年1月28日PCT公布。 出版物WO88 / 05718 日本1988年8月11日。在制造方法中使用的垫片，其中主要成分为甲基丙烯酸甲酯的甲基丙烯酸甲酯预聚物或不饱和单体的混合物或不饱和单体或单体本身被引入到由两个平行 由所述垫片分离的板，并且使模具达到足以完成或进行聚合的温度。 垫圈由增塑的聚（氯乙烯）芯组成，所述芯由被选自丙烯聚合物和饱和聚合物的热塑性聚合物的薄层包覆，所述热塑性聚合物能够在20至120℃的温度范围内保持其弹性 熔点或软化点高于115℃
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公开(公告)号：US4839125A
公开(公告)日：1989-06-13
申请号：US49776
申请日：1987-05-12
申请人： Kozo Ida
发明人： Kozo Ida
CPC分类号： G02B5/0236 , B29C39/16 , B29D11/00 , C08K3/0033 , G02B5/0268 , G02B5/0278 , B29C2791/008 , B29K2033/04 , B29K2105/0002 , B29K2995/0029
摘要： Light-diffusing methacrylic plates are continuously prepared by casting a polymerizable material composed of methyl methacrylate or a partially polymerized product thereof with 0.2 to 3.0% by weight of a light diffusing material between two belts. The belts are separated by an average distance l but are capable of both compression and expansion relative to this average separation. The method involves applying compression at at least one point in the casting space to reduce the separation distance and then allowing expansion back to a maximum distance wherein the maximum spacing between the belts is from (l+1) mm to (l+0.2) mm and the minimum spacing during compression is from (l-1) mm to (l-0.2) mm.
摘要翻译： 通过将由甲基丙烯酸甲酯或其部分聚合产物组成的可聚合材料浇铸在两个带之间的0.2至3.0重量％的光漫射材料来连续制备光漫射甲基丙烯酸板。 皮带分开平均距离l，但是能够相对于该平均分离压缩和膨胀。 该方法包括在铸造空间中的至少一个点处施加压缩以减小分离距离，然后允许扩展回到最大距离，其中带之间的最大间距为（1 + 1）mm至（1 + 0.2）mm 压缩时的最小间距为（1-1）mm至（1-0.2）mm。
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10.发明授权Process for molding a substantially isotropic isocyanate-based polymer foam bun 失效用于模制基本上各向同性的异氰酸酯基聚合物泡沫块的方法
公开(公告)号：US4104346A
公开(公告)日：1978-08-01
申请号：US709777
申请日：1976-07-29
IPC分类号： B29B7/00 , B29C39/00 , B29C39/26 , B29C39/32 , B29C39/40 , B29C44/58 , B29C67/20 , B29K105/04 , B29D27/04
CPC分类号： B29C44/586 , Y10S264/84
摘要： A mold is described for the molding of substantially isotropic isocyanate-based polymer foam buns. The mold is a box mold which has sidewalls of which at least one pair disposed in parallel relationship is adapted to move outwardly when subjected to pressure exerted by the expanding foam during the molding operation. The outward movement of the sidewalls is controlled by stops provided on the periphery of the mold floor, said sidewalls being free to slide over the surface of the floor. The lid of the mold is supported in sliding engagement with the upper edges of the sidewalls. The mold and the process of fabricating foam buns therewith is particularly suitable for use in situations (e.g. operation in the field) in which it is not possible or practicable to employ continuous bunstock machines. The mold is relatively inexpensive and readily dismantled for transportation to a fabrication site.
摘要翻译： 描述了用于模制基本上各向同性的异氰酸酯基聚合物泡沫小圆面包的模具。 模具是具有侧壁的盒模具，其中至少一对平行关系设置成在模制操作期间受膨胀泡沫施加的压力时向外移动。 侧壁的向外运动由设置在模具地板的周边上的挡块控制，所述侧壁可自由地在地板的表面上滑动。 模具的盖子被支撑成与侧壁的上边缘滑动接合。 模具和其中制造泡沫块的方法特别适用于不可能或可行地使用连续坯料机器的情况（例如在现场操作中）。 模具相对便宜并易于拆卸以便运输到制造现场。
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