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我厂生产的主要产品是名种型号、規格的三通閘閥,在过去一直是用死芯骨造芯的。自从去年大跃进和增产节約运动以来大量的采用了活芯骨,采用这种方法造芯,不但保証了質量和提高了产量,而且节約了大量金属的消耗,从而使鑄件成品率大大提高,使我們今年第一、二季度成品率远远超过了全国鑄鍛沈質高产竞賽中規定的指标(成品率均超过80％以上)。这种方法現在又成功的用在潮型潮芯鑄造上,現在我們把这个經驗介紹出来,供大家参考。一、应用范围和芯骨重量到目前为止,这种造芯方法已应用在口径φ100～1000毫米的各种規格的平行閥、摆止閥、煤气閥以及截门等30余种鑄件上,鑄件輪廓尺寸160×180×188～800×780×900毫米。鑄件重量33～1200公斤。芯骨重量7.5～500公斤。
I plant the main product is a variety of species models, specifications of the three-way valve, in the past has been used to die core-building. Since the Great Leap Forward last year and the campaign to increase production and saving a lot of the use of live bones, using this method of making the core, not only to ensure the quality and increase production, but also saves a lot of metal consumption, so that the casting yield greatly improved , So that the first and second quarter of this year, the finished product rate far exceeds the national castings forging high yield race set the target (finished rate of more than 80%). This method is now successfully used in tidal tide casting, and now we introduce this experience out for your reference. First, the application range and the weight of the bones So far, this core-making method has been used in the caliber φ100 ~ 1000 mm of various specifications of the parallel valve, pendulum valve, gas valve and the cut-off of more than 30 kinds of castings, castings Outline size 160 × 180 × 188 ~ 800 × 780 × 900 mm. Casting weight 33 ~ 1200 kg. Core weight 7.5 to 500 kg.