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你知道是什么影响铸铁质量的吗?

来源:http://www.kpp647.com添加时间:2018-11-20 14:13:44

影响铸铁质量的原因

Causes of affecting cast iron quality

铸铁件的规划工艺性。进行规划时,除了要依据工作条件和金属资料性能来确定铸铁件几许形状、尺度大小外,还   从铸造合金和铸造工艺特性的视点来考虑规划的合理性,即显着的尺度效应和凝结、收缩、应力等问题,以防止或削减铸铁件的成分偏析、变形、开裂等缺点的产生。

Planning and manufacturability of iron castings. In planning, besides determining the shape and size of iron castings according to the working conditions and the properties of metal data, the rationality of planning should be considered from the viewpoint of casting alloy and casting process characteristics, i.e. remarkable scale effect and problems of condensation, shrinkage and stress, in order to prevent or reduce the composition of iron castings. Segregation, deformation, cracking and other defects.

要有合理的铸造工艺。即依据铸铁件结构、分量和尺度大小,铸造合金特性和生产条件,挑选适宜的分型面和造型、造芯方法,合理设置铸造筋、冷铁、冒口和浇注系统等。以确保获得   铸铁件。

There must be a reasonable casting process。 That is to say, according to the structure, component and size of cast iron, casting alloy characteristics and production conditions, suitable parting surface, moulding and core-making methods are selected, and casting bars, chills, risers and gating systems are reasonably set up。 To ensure that iron castings are obtained。

铸造用原资料的质量。金属炉料、耐火资料、燃料、熔剂、变质剂以及铸造砂、型砂粘结剂、涂料等资料的质量不合标准,会使铸铁件产生气孔、针孔、夹渣、粘砂等缺点,影响铸铁件外观质量和内部质量,严重时会使铸铁件作废。

The quality of raw materials used for casting. The substandard quality of metal burden, refractory material, fuel, flux, modifier, casting sand, moulding sand binder, paint and other materials will lead to defects such as porosity, pinholes, slag inclusion and sand sticking, which will affect the appearance and internal quality of cast iron castings, and will cause cast iron castings to be scrapped in serious cases.

工艺操作,要拟定合理的工艺操作规程,提高工人的技能水平,使工艺规程得到正确实施。制造生产中,要对铸件的质量进行操控与查验。   先要拟定从原资料、辅助资料到每种具体产品的操控和查验的工艺守则与技能条件。

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In process operation, it is necessary to draw up reasonable process operation rules, improve the skill level of workers, and make the process rules correctly implemented. In manufacturing, the quality of castings must be controlled and inspected. Firstly, we need to formulate the process codes and technical conditions from the original materials and auxiliary materials to the control and inspection of each specific product.

对每道工序都严格按工艺守则和技能条件进行操控和查验。   后对制品铸件作质量查验。要装备合理的检测方法和适宜的检测人员。

Each process is strictly controlled and inspected according to the codes and skills. The quality of the casting is checked. It is necessary to equip reasonable inspection methods and suitable testing personnel.

一般对铸铁件的外观质量,可用比较样块来判断铸件外表粗糙度;外表的纤细裂纹可用着色法、磁粉法检查。

Generally, for the appearance quality of professional iron castings, the surface roughness of castings can be judged by comparing the sample blocks, and the fine cracks on the surface can be checked by coloring method and magnetic powder method.

以上信息是由我们山东铸铁护栏整理发布的我们公司以的水准赢得了广大群众的一致好评,欢迎大家来电咨询洽谈合作,我们的网站是http://www.kpp647.com

The above information is collected and released by our Shandong cast iron guardrail。 Our company has won the unanimous praise of the masses with its professional level。 Welcome to call us for consultation and cooperation。 Our website is http://www。jnwszy。com!



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