Yinfeng Shi

Title: Yinfeng Shi and Advances in Metal Cold-Forming Pretreatment.

Introduction

Yinfeng Shi is an inventor based in Frankfurt am Main, Germany, and is associated with Chemetall GmbH. His patent work addresses pretreatment methods designed to support the cold forming of metallic substrates.

Latest Patents

Shi is named on 1 patent, titled “One-step pretreatment method of metallic substrates for metal cold forming.” The invention describes treating a metallic substrate by contacting at least one of its surfaces with an aqueous lubricant composition. The composition has a pH between 0.1 and 6.0 and contains at least 40 percent water by weight, along with a film-forming polymer, wax, corrosion inhibitor, and oxalate and/or phosphate anions.

The disclosure also covers pretreated substrates made using the method, a cold-forming process that uses those substrates, the aqueous lubricant composition, and a master batch for preparing it. The approach brings several pretreatment components together in a single step before cold forming.

Career Highlights

Shi’s documented patent contribution focuses on materials processing and metal forming. His association with Chemetall GmbH connects this work with a company active in surface treatment and related technologies.

Collaborations

The available information identifies Chemetall GmbH as Shi’s company affiliation and names him in connection with the patent. It does not specify additional collaborators or their respective contributions.

Conclusion

Yinfeng Shi’s patent presents a one-step aqueous pretreatment approach intended to prepare metallic substrates for cold forming, reflecting his contribution to industrial materials processing.