Cooperative enterprise: an extruded pipe manufacturer in Weifang, Shandong

Problems encountered by enterprises:

Extruded pipe manufacturers can produce different products according to customer requirements. The pipe that encounters the problem is an extruded automobile air-conditioning pipe, which has no composite layer, and is pickled and annealed after extrusion. After the pipe is annealed, because it is not cleaned, oily carbonization and aluminum oxide appear on the inner wall of the pipe cavity, resulting in yellowing and blackening. The company hopes that chemical treatment can solve or improve this problem, avoid the scrap of this batch of products, and reduce economic losses and impact on customers.

The technical solution proposed by our company:

After the company sent the sample of the problematic product to our company, we first learned the details of the raw material model of the batch of pipelines, the composition of the grease used, the processing process and other details with the person in charge of the production of the other party. . Through a detailed understanding of the pipeline conditions and the company's requirements after treatment, we use our company's product LT-IV aluminum products degreasing and whitening liquid to deal with the problematic parts in the laboratory. We have tried various cleaning solutions of different concentrations, different temperatures, and different soaking times for many times, which solved the yellowing and blackening caused by the annealing of the inner wall of the lumen to the greatest extent. Finally, we cooperated with the company to formulate a batch cleaning process to solve this batch of problematic products, and the company supplies customers as scheduled, avoiding the economic loss of the company's scrapped products.

(This picture shows the carbonization and yellowing of the inner wall of the lumen)

(This picture is the appearance of the treated pipe)