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公开(公告)号：US4447386A
公开(公告)日：1984-05-08
申请号：US433061
申请日：1982-10-06
CPC分类号： B29C45/7337 , B29C45/125 , B29C45/2756 , B29C45/561 , B29C2045/567 , B29K2101/10
摘要： A method and apparatus are described. A thermosetting molding material, suitably a synthetic resin composition such as a phenolic molding composition, is initially heated and plasticized. The plasticized mass is passed as a stream through an injection nozzle which is maintained at a temperature sufficiently high to keep the mass in a plasticized condition but sufficiently low to avoid any substantial curing or setting-up of the mass. The plasticized mass is next passed through a temperature-controlled zone maintained at a temperature sufficiently high to keep the mass in a plasticized condition but sufficiently low to avoid any substantial curing or setting-up of the mass. The plasticized stream is passed into a partially open, heated mold. The mold cavity is maintained at temperatures sufficiently high to cure the thermosetting molding material. When the partially open mold is partially full, the feed steam is interrupted, and the mold is then completely closed to press and cure the enclosed plasticized material. The cured, finished article is removed from the mold and the process repeated.An apparatus for conducting the process of the invention includes a stationary assembly and a movable assembly. The stationary assembly is comprised of a stationary platen which has a heat plate, a temperature-controlled sprue bushing and a mold face positioned thereon. The movable assembly is comprised of a movable platen which has a heat place mounted thereon and a mold face, corresponding to, and adapted to be aligned with, the mold face on the stationary assembly to form a partially open mold cavity. Means are provided to feed a supply of thermosetting molding material through the sprue bushing into the partially open mold cavity. Means are provided to completely close the mold cavity and place the apparatus in a compression stage. Means are also provided for the subsequent retraction of the movable assembly to allow removal of a molded article and access to the mold area.
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公开(公告)号：US4430287A
公开(公告)日：1984-02-07
申请号：US400338
申请日：1982-07-21
申请人： Peter J. Tilgner
发明人： Peter J. Tilgner
CPC分类号： B29B7/7615 , B29B7/82 , B29K2077/00 , B29K2105/16 , Y10S264/61
摘要： Method and apparatus for molding polymeric materials using the reaction injection mixing (RIM) technique of combining two or more chemically reactive components immediately prior to their introduction into a mold. The invention is more particularly adapted to RIM molding of polyamide (nylon) type polymers, but is also useful for urethane polymers. In either case the polymers may be of the unfilled or of the reinforced type. Modification of conventional RIM technique is made to meet higher component temperature conditions required for nylon molding as compared to urethane polymers, for example. A characterizing feature of the invention is the employment of an attempering "oil tracer" system comprising casings and jackets enclosing the flow paths of each of the several reactive components, and the flow therethrough of a temperature-controlled oil or other fluid medium in heat-exchange but non-fluid communication with the reactive components. Arrangement is made for zoning the component flow paths, and selectively controlling the delivery of attempering oil to different zones whereby to provide flexibility of temperature control at different zones.
摘要翻译： 使用反应注入混合（RIM）技术来模制聚合材料的方法和装置，其在将两种或更多种化学反应组分引入模具之前将其组合在一起。 本发明更具体地适用于聚酰胺（尼龙）型聚合物的RIM成型，但也适用于聚氨酯聚合物。 在任一种情况下，聚合物可以是未填充的或增强型的。 与氨基甲酸酯聚合物相比，常规RIM技术的改进是为了满足尼龙模塑所需的更高的组分温度条件。 本发明的特征在于采用一种温和的“油追踪器”系统，其包括围绕几个反应组分中的每一个的流动路径的壳体和夹套，以及通过其中的温度控制的油或其它流体介质的流动， 与活性组分进行交换而非流体连通。 为了使组件流动路径分区，并且选择性地控制回火油输送到不同区域，从而提供不同区域的温度控制的灵活性。
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公开(公告)号：US4426348A
公开(公告)日：1984-01-17
申请号：US402871
申请日：1982-07-29
申请人： Wayne C. Salisbury
发明人： Wayne C. Salisbury
IPC分类号： B29C45/76 , B29B7/00 , B29B7/76 , B29C31/06 , B29C39/00 , B29C39/02 , B29C39/24 , B29C43/00 , B29C45/00 , B29C45/10 , B29C67/24 , C08G18/00 , C08G18/65 , B29G3/00 , B29D27/00
CPC分类号： C08G18/65 , B29B7/7466 , B29B7/748 , B29B7/7615 , B29C31/06 , B29C67/246 , C08G2120/00
摘要： A polyurethane RIM system has at least two molding stations. The reactants are brought to the mixheads as three separate streams. One stream contains the isocyanate, the second stream contains some of the polyol, the chain extender and crosslinker and a third stream contains additional amounts of the polyol, along with what additives might be desired. At each mixhead the proportions of ingredients are controlled to give an isocyanate index of about 100, but the ratio of one polyol stream to the other is regulated to control the flex modulus and other properties of the molded product as may be desired. In this way, one source of supply can be used to feed several molding stations, each of wich may produce a product of different physical properties and thus of different costs.
摘要翻译： 聚氨酯RIM系统至少有两个成型站。 将反应物作为三个独立的流被带到混合头。 一条流含有异氰酸酯，第二条流含有一些多元醇，扩链剂和交联剂，第三条流含有额外量的多元醇，以及可能需要什么添加剂。 在每个混合头处，成分的比例被控制得到约100的异氰酸酯指数，但调节一种多元醇流与另一种多元醇流的比例，以控制可能需要的模制产品的挠曲模量和其它性能。 以这种方式，可以使用一个供应源来喂养多个成型站，每个成型站可以产生具有不同物理性质并因此具有不同成本的产品。
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公开(公告)号：US4419305A
公开(公告)日：1983-12-06
申请号：US329345
申请日：1981-12-10
申请人： William B. Matles
发明人： William B. Matles
CPC分类号： B32B17/10963 , B29C73/025 , B29L2031/778 , Y10S425/06
摘要： A windshield repair device comprising a vacuum cup with a built-in piston and cylinder assembly is characterized by a transverse opening in the cylinder so that when the piston is partly withdrawn, gas bubbles can be drawn out of the repair liquid by the vacuum holding the cup in place against the glass. In operation, after the bubbles are removed from the liquid, the piston is moved toward the glass. The piston closes off fluid communication through the transverse opening in the cylinder and as it moves further toward the glass, it forces repair liquid into the damaged area. One end of the cylinder is provided with a sealing ring which bears against the face of the windshield to provide a seal. The cylinder is used as a reservoir for repair liquid, and allows gas bubbles to be removed from the liquid by the vacuum holding the cup in place. The piston has a pointed projection at its end which bears against a separated cone of glass in the damaged area and breaks the seal between the cylinder and the face of the windshield when pressure in the repair liquid approaches a level such that it is likely to cause permanent damage by delamination of the windshield.
摘要翻译： 一种包括具有内置活塞和气缸组件的真空杯的挡风玻璃修复装置的特征在于气缸中的横向开口，使得当活塞部分地被抽出时，气泡可以通过真空吸入维修液中，保持 杯子在玻璃上的位置。 在操作中，在从液体中除去气泡之后，活塞向玻璃移动。 活塞通过气缸中的横向开口封闭流体连通，并且当其进一步向玻璃移动时，其迫使修复液体进入损坏区域。 气缸的一端设置有密封环，该密封环抵靠挡风玻璃的表面以提供密封。 气缸用作修复液体的储存器，并且通过将杯保持在适当位置的真空使气泡从液体中除去。 活塞在其端部具有尖端的突起，其在损坏的区域中抵靠分开的玻璃锥体，并且在维修液体中的压力接近可能导致的水平时，破坏气缸与挡风玻璃的表面之间的密封 挡风玻璃分层永久性损坏。
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公开(公告)号：US4388265A
公开(公告)日：1983-06-14
申请号：US330699
申请日：1981-12-14
申请人： Kazuo Bandoh
发明人： Kazuo Bandoh
CPC分类号： B29C45/02
摘要： In molding a number of articles of plastics at the same time with use of an upper mold and a lower mold having a multiplicity of cavities in the fitting surfaces thereof, a process for molding plastics by supplying the molding material to a plurality of pots each provided for one pair of cavities in proximity thereto, and injecting the material into the cavities from the pots through gates without passing the material through any runner. An apparatus for practicing the process is also disclosed. The waste of the molding material can be reduced at least by the amount conventionally needed for filling the main and auxiliary runners.
摘要翻译： 在使用上模具和在其装配表面中具有多个空腔的下模具同时模制多个塑料制品的过程中，通过将成型材料供给到多个盆中来模制塑料的方法，每个盆设置 对于靠近其的一对空腔，并且通过门将材料从罐中注入到空腔中，而不将材料通过任何流道。 还公开了一种用于实施该方法的装置。 成型材料的浪费至少可以减少填充主要和辅助流道的常规所需的量。
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公开(公告)号：US4367192A
公开(公告)日：1983-01-04
申请号：US260233
申请日：1981-05-04
申请人： Sigurdur I. Arnason
发明人： Sigurdur I. Arnason
CPC分类号： C09D163/10 , B29C37/0028 , B29C2791/001 , B29C43/00 , B29K2063/00 , B29K2105/0002 , B29K2105/08 , B29K2105/16
摘要： Liquid compositions suitable for hot post-mold coating of cured sheet molding compound (SMC) parts comprise a reaction product of an epoxide and an unsaturated carboxylic acid mixed with a low shrink additive and a filler having a sheet-like structure. These liquid compositions are used to smooth surfaces, fill porosity and other voids and to eliminate or reduce sink marks. Coatings typically are cured in less than two minutes and appear able to provide many features of normal painting without paint facilities except possibly those needed for touch-up.The application method used to date has been to compression mold an SMC part in the usual way, separate the mold halves, inject the liquid composition and reclose the mold for a second cure cycle. A unique feature of the liquid composition is its ability to adhere to an uncleaned SMC molding.
摘要翻译： 适用于固化片状模塑料（SMC）部件的热后模涂层的液体组合物包括与低收缩添加剂和具有片状结构的填料混合的环氧化物和不饱和羧酸的反应产物。 这些液体组合物用于使表面光滑，填充孔隙度和其它空隙并消除或减少凹痕。 涂料通常在不到两分钟的时间内固化，出现能够提供普通涂料的许多特征，而不需要涂漆设备，除了可能需要的涂料。 迄今为止使用的应用方法是以通常的方式压缩模制SMC部件，分离半模，注入液体组合物并重新闭合模具用于第二固化周期。 液体组合物的独特特征是其粘附于未清洁的SMC成型体的能力。
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67.发明授权
公开(公告)号：US4366611A
公开(公告)日：1983-01-04
申请号：US181174
申请日：1980-08-25
申请人： Donald Jenkins
发明人： Donald Jenkins
CPC分类号： E06B3/70 , Y10T29/49796
摘要： Sealed, molded fiberglass doors and the framing members which surround them, such as used on utility trucks and other purposes, are in the present invention molded in a single piece. The door panel, originally formed recessed inwardly from the framing member, is bounded by an outward facing V-groove whose outer wall slopes toward the framing member. The integral molded part is then severed to divide the sloping outer wall into a framing member flange and the outer margin of a V-flange which bounds the door. On fitting the cut edge of this V-flange with a heavily cushioned channel gasket, and presenting the door against the flange of the framing member, a secure seal is effected without any tendency to pull the gasket off the door edge, even when frozen. Forming the parts integrally not only saves mold costs and material costs, but also assures perfect fit.
摘要翻译： 密封的模制玻璃纤维门和围绕它们的框架构件，例如用于公用车辆和其它目的，在本发明中模制成单件。 最初从框架构件向内凹进的门板由外向V形槽限定，外壁朝向框架构件倾斜。 然后切割整体模制件以将倾斜的外壁分成框架构件法兰和限定门的V形法兰的外边缘。 在将V形凸缘的切割边缘装配在高度缓冲的通道垫圈上，并将门呈现在框架构件的凸缘上时，即使在冻结时也不会将垫圈从门边缘拉出，因此可以进行安全的密封。 整体成型不仅节省了模具成本和材料成本，而且保证了完美契合。
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公开(公告)号：US4340562A
公开(公告)日：1982-07-20
申请号：US235462
申请日：1981-02-18
CPC分类号： B29C67/246 , B29C33/0077 , B29C45/0005 , B29C70/48 , B29K2063/00 , B29K2067/06 , B29K2105/12 , B29K2277/10
摘要： This invention concerns a process for fabricating fiber reinforced thermoset resin articles. The process comprises the steps of (a) providing in a distributing zone, an intimate mixture of one or more fibers with a melting point or a glass transition temperature above about 130.degree. C. and a fiber length greater than about 0.5 centimeters, and a liquid resin, said resin having a viscosity of less than about 3000 centipoise at 25.degree. C., (b) injecting said mixture into the cavity of a closed matched metal die mold, thereby filling said cavity with said mixture, (c) heating said mixture so as to cause an exothermic reaction to occur in said mold, and (d) opening said mold and recovering a thermoset fiber reinforced molded article therefrom.
摘要翻译： 本发明涉及制造纤维增强热固性树脂制品的方法。 该方法包括以下步骤：（a）在分配区域中提供熔点或玻璃化转变温度高于约130℃，纤维长度大于约0.5厘米的一种或多种纤维的紧密混合物，以及 所述树脂在25℃下具有小于约3000厘泊的粘度，（b）将所述混合物注入封闭匹配的金属模具的空腔中，由此用所述混合物填充所述空腔，（c）加热所述 混合物以在所述模具中发生放热反应，和（d）打开所述模具并从其中回收热固性纤维增强模制品。
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69.发明授权
公开(公告)号：US4290744A
公开(公告)日：1981-09-22
申请号：US118381
申请日：1980-02-05
CPC分类号： B29C45/2735 , B29C45/561
摘要： An improved molding apparatus for injection-compression molding thermosetting materials is described. The apparatus comprises a stationary platen assembly, a moveable platen assembly and a feed nozzle assembly.The stationary assembly is comprised of a stationary platen member, a heated plate mounted on the support plate and a plurality of mold faces mounted on the heat plate.The movable assembly is comprised of a moveable platen member, a heated plate mounted thereon and a plurality of mold faces mounted on the heat plate aligned with the mold faces on the stationary assembly.The feed, or injection, nozzle assembly is comprised of a cylindrical nozzle member, having an internal temperature controlling means, and a plurality of feed outlets positioned on the periphery. The temperature maintained in the nozzle member is sufficiently high to maintain the thermosetting molding material within the nozzle member in a plasticized state and sufficiently low that no substantial curing or setting-up of the thermosetting molding material within the nozzle member in a plasticized state and sufficiently low that no substantial curing or setting-up of the thermosetting molding material takes place.
摘要翻译： 描述了用于注射压缩模制热固性材料的改进的模制设备。 该装置包括固定的压板组件，可移动的压板组件和进料喷嘴组件。 固定组件包括固定压板构件，安装在支撑板上的加热板和安装在加热板上的多个模具面。 可移动组件包括可移动的压板构件，安装在其上的加热板和安装在热板上的多个模具面，其与固定组件上的模具面对准。 进料或注射喷嘴组件包括具有内部温度控制装置的圆柱形喷嘴构件和位于外围的多个进料出口。 喷嘴构件中保持的温度足够高以将热固性成型材料保持在喷嘴构件内处于塑化状态，并且足够低，使得在增塑状态下热固性成型材料在喷嘴构件内没有显着的固化或固化，并且足够 低，没有发生热固性成型材料的实质固化或安装。
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70.发明授权Method for the manufacture of workpieces in particular fan blades, complete fan rotors and other bodies 失效用于制造特别是风扇叶片，完整风扇转子和其它物体的工件的方法
公开(公告)号：US4248817A
公开(公告)日：1981-02-03
申请号：US82081
申请日：1979-10-05
申请人： Karl Frank
发明人： Karl Frank
IPC分类号： B64C11/24 , B29B15/00 , B29C33/52 , B29C39/08 , B29C57/00 , B29C70/06 , B29C70/36 , B29D99/00 , C08J5/04 , F01D5/28 , B29C1/08 , B29D3/02 , B29G3/00
CPC分类号： B29D99/0028 , B29C33/52 , B29C39/08 , B29C70/36 , F01D5/282 , B29K2105/08 , B29L2031/08 , Y02T50/673
摘要： A method for manufacturing work pieces such as fan blades, complete fan rotors and other bodies wherein a core is wrapped around with reinforcing means and the wound core is inserted in a mould, then liquid synthetic resin mixture is filled into the hollow space of the mould, and whereby after the synthetic resin hardens, the fan blades are removed from the mould.
摘要翻译： 一种用于制造诸如风扇叶片，完整的风扇转子和其他机体的工件的方法，其中芯部用加强装置缠绕，并且将卷绕的芯体插入模具中，然后将液体合成树脂混合物填充到模具的中空空间中 并且由此在合成树脂硬化之后，将风扇叶片从模具中取出。
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