Analysis of the quality objection of [Rubber head]
A customer purchased a batch of stainless steel plates, and after pulling it back, it was found that there were very serious rust spots on the heads of 5 steel plates. This batch of flat plates is made of 5 steel coils. The 5 rusty plates are the first flat plates of each coil. The customer felt that the rusty steel plate affected the use, so he raised a quality objection.
After the on-site inspection by the supplier’s technicians, the rust spots appeared in the middle of the steel plate, which was longitudinally distributed and banded. The rust spots were serious, but they could be scraped off with a tool.
It can be seen from the Kaiping records of the processing plant that the rust spots are the marks left by the steel strips used for packaging during uncoiling. Because this batch of steel coils has been exposed to rain and has been stored for a long time, the packaging stainless steel strips have rusted and affected the steel coils. In addition, the rainwater has also wetted the packaging paper and aggravated the degree of corrosion.
Because the material of this batch of steel coils is 304 and the thickness is 8mm, the price is relatively high. If the rusty plate head is removed and scrapped, the loss will be very large. The supplier decides whether to cut the plate head into a finished plate and send it to the customer.
Because this batch of steel plates is severely corroded, it can no longer be used directly. Finally, it is agreed to use pickling cream to remove rust spots.
This quality objection once again told us that the storage of stainless steel coils should be protected from rain, and in addition, try to avoid direct contact with iron objects.