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    • 68. 发明授权
    • Method for foaming insulations in refrigerators and the like
    • 用于在冰箱等中发泡绝缘的方法
    • US4765935A
    • 1988-08-23
    • US4495
    • 1987-01-20
    • Carlo Fiorentini
    • Carlo Fiorentini
    • B29C39/10B29C39/44B29C44/60B29K75/00B29K105/04B29L31/00F25D23/06F25D23/08B29C45/77B29C45/78B29C67/20
    • F25D23/064B29C44/60B29L2031/7622
    • The invention relates to a method for producing insulations of foamed plastic material, in cabinets and doors of refrigerators, freezers and the like.According to the invention, a metered quantity of a foamable mixture is fed into the gaps between the inner and outer walls of a cabinet or door, placed in a foaming jig; the foaming process is controlled by sensing characteristic parameters, for example, the temperature of the jig, cabinet or door, or the pressure of the foaming plastic material, comparing them with reference parameters or data stored in a data processing unit. A control signal is generated to open the foaming jig and to unmold or remove the cabinet or door when at least one of the processing parameters has reached a pre-established value. The metered quantity of mixture fed in each subsequent foaming operation is corrected each time according to the changes in the peak pressure of the foam with respect to the previous foaming operation.
    • 本发明涉及一种制造发泡塑料材料绝缘体的方法,在冰箱,冷柜等的柜子和门中。 根据本发明,将计量量的可发泡混合物供给到放置在发泡夹具中的橱柜或门的内壁和外壁之间的间隙中; 通过检测特征参数,例如夹具,橱柜或门的温度或发泡塑料的压力,将其与参考参数或存储在数据处理单元中的数据进行比较来控制发泡过程。 产生控制信号以打开发泡夹具,并且当至少一个处理参数已经达到预先建立的值时,开启或拆卸机柜或门。 根据泡沫的峰值压力相对于先前的发泡操作的变化,每次都校正在每次后续的发泡操作中进料的计量量的混合物。