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一种产品是否能顺利生产,是否能符合多快好省的要求,首先要看工艺编制是否正确和切合实际。现举两个例来说明我厂编制阀门工艺的具体过程: [例1] 石油配件21/2时×210大气压闸门阀(见图1),材料用尢35,技术要求如下: (1)用300大气压试压,无渗漏现象; (2)梯形垫环槽上不允许有气孔或砂眼。由于大量生产,故两只连浇,用型板造型。浇注位置和冒口位置决定后,先在图纸上按标准划出加工余量6毫米和拔模斜度。两只铸件泥芯头相接的
Whether a product can be smoothly produced can meet the requirements of more speed and energy saving. The first thing to look at is whether the process is correct and realistic. Now give two examples to illustrate my factory process of the preparation of the valve process: [Example 1] 21/2 oil fittings 210 × atmospheric pressure gate valve (see Figure 1), the material used especially 35, the technical requirements are as follows: (1) 300 atmospheric pressure test, no leakage phenomenon; (2) trapezoidal gasket groove does not allow stomatal or trachoma. Due to mass production, so two even pouring, with the template shape. Pouring position and riser position decision, the first drawing on the drawings according to the standard draw allowance of 6 mm and draft. Two casting mud core phase of the interface