When you plan to purchase Cast Iron products from China, there is a key issue concern to you: how does the Chinese foundry control and check quality of casting parts?According to my experience in China foundry, many Chinese casting foundry don’t have strictly enforce regulate of quality control and inspection methods, also many factors affecte the quality of castings, so you may encounter some quality problem.
I hope the following methods can help you to avoid this situation:
1. The most important thing is to find a qualified supplier
For quality control, you have to rely on a qualified supplier with quality inspection experience and complete quality management system. To tell you the truth, It’s easy to get a certificate in China, if your Chinese supplier says they has ISO 9001 certificate, but this does not mean they have quality control ability. A certificate can’t prove that the foundry can control the quality of the product accordingly.About how to ensure the quality of castings through process control in our foundry, I’ll write it in future.
A qualified supplier can complete all quality control and inspection before shipment, so you can deliver the product directly to customer, no trouble and saving your time and money.If you work with a poor supplier, you maybe waste time, person and financial resources on quality inspection after receive the production, nonconforming products can cause you lose final customer and market.Of course, before cooperation you don’t know who is the qualified supplier, and what makes you confused is everyone say we are the best, we will offer with lowest price and the best quality.Some customers choose the low price suppliers, they will encounter the following two situations:When you choose someone and pay for the pattern, someday if you change anotherone , maybe they do not give you the pattern or ask for a fee. so it’s hard to change suppliers.At the beginning or trial order, supplier control quality well, but with the quantity increases, supplier try to get the work done faster, their quality issues will come out, even if they have remedial measures, You may also have to face huge damages or lose your customers.Generally speaking, choose a responsible supplier is very important. a good supplier offer qualified casting parts and you don’t need to worry about the quality and focus on getting more orders.
2. Require suppliers to provide inspection reports
Some clients require suppliers to provide inspection reports, of course are based on the fact information.A qualified supplier has its own quality inspection system. For example, Dandong Iron Casting foundry casting foundry have quality inspection reports according to drawings, including the dimensions, tolerance, visual and defect inspection. composition test,metallographic test and mechanical property test, material inspection and key quality problems.Finally we send inspection report when delivery goods. A complete quality inspection system can decide if it’s a qualified suppliers or not.Request to send photos of products and packing when the product finished, help to find the visual problems and surface defects, and control the quality problems. Insist to do it will save your time and cost, and I believe a qualified supplier is willing to do that.
3. Quality check before confirmation
When you receive the castings, do some inspection, such as the key dimensions, tolerances, visual inspection of the normal casting defects. If you send it directly to customers without routine checks, such as rusty problems, or obvious surface problems, you may lose your customers.All of these mentioned above are years of experience in our Dandong Iron Casting foundry. This quality control system is very useful for both cast iron and cast steel.Dandong Iron Casting foundry is constantly improving the quality control system and inspection system, sincerely hope to provide better casting products, let us have a long-term cooperation.