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Test Methods: Cast Plastic Tooling Materials.

机译:试验方法:铸塑工具材料。

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The physical and working properties of room temperature curing tooling resin systems are affected by the factors listed below: (a) Temperature of materials and molds prior to casting and during curing cycle. (b) Total volume of the catalyzed resin mixture. (c) Capacity and construction of the mixing container. (d) Volume, construction and dimensions of the mold. (e) Volume and dimensions of the casting. (f) Age and date of resin systems. (g) Hardeners stored exposed to moisture. (h) Presence of moisture in plasters against which the tool surfaces will be made. (i) Types of fillers used in casting resin systems. All these may affect properties. It is therefore imperative that these test methods be established. These test methods were developed for the plastics industry and its suppliers to facilitate the exchange of test data and to promote the development of materials and techniques which will advance the use of plastics in tooling applications.

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