DANDONG CITY PENGXIN MACHINERY CO.,LTD.

How to inspect quality of cast iron and cast steel products made in China

 As a purchasing, how to inspect the castings quality of Chinese Casting Foundry? I worked in China casting Foundry factory for many years, for how to inspect quality I have some experience maybe can help you.

1. Inspection Reports

As a foundry that produces castings for foreign customers all year round, the inspection reports is an effective method to control the castings quality for necessary, it also proves that the factory take a normal quality inspection and have responsible for the results.

The inspection report includes mechanical properties and chemical composition, the mechanical properties including mechanical properties, tensile strength, yield strength, hardness, metallography and spheroidization rate etc.

The dimensional reports show size of inspection results, the surface quality and other inspection results.

2. Inspection Tooling

If the castings need to be assembled together with other parts, you’d better consider whether to send these parts to the manufacturer, which is used as a inspection tool to improve the inspection quality. Otherwise, Donggang Foundry will make inspection tools for the key dimensions.

From my practical experience in the foundry, the inspection tools are more useful to control product size than inspection report.

3. Production Photos

Except the above inspection methods, for casting surface quality, spraying and packaging, you can ask China foundry to take some photos. Over the years, We talk about quality issues with many of our clients in the form of photos, which has helped us solve many problems.

Please trust me that it’s very useful.

4. Entrust third party inspection

In the starting of cooperation,  for mass producs, some clients entrust the third party inspection company to take quality inspection.

If you think it is necessary to entrust the third party to inspect for on-site inspection, that’s no problem, Dandong Hengrui Casting Foundry will cooperate fully with the third party inspection company.

Maybe you are also interesting in How to choose a qualified foundry in China

 
 
 

In addition, These years I met many customers who think that suppliers only need drawings, but do not need to know how to use production and application environment. In fact this is the biggest mistake. These information will help your suppliers to understand the key dimensions, surface quality requirements and internal defects. Help your supplier about how to use these castings and send them some assembly drawings or application photos.

Trust me that’s very important. These information is helpful to the quality control, during the quotation, make pattern, casting, machining, inspection quality, even packing, it will avoide some unnecessary mistakes in advance, save your time and money.

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