Patent ID: 11951556
Assignee: DTECH PRECISION INDUSTRIES CO., LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B  F  H | IPC B  F  H

Claim 0:
1. A method for retaining fastening element solder, comprising a fastening element, the fastening element having a solderable surface and a fastening portion and a hole portion, wherein an end of the hole portion has a retaining portion which solder flows into or enters during a soldering heating process to cool down and solidifies, and the retaining portion in the fastening element is segmented relative to the fastening portion, and the retaining portion is a stepped portion having an inner longitudinal surface and an inner transverse surface; where solidified solder is attached to the inner longitudinal surface and the inner transverse surface and retained in the retaining portion, therefore preventing liquid solder from flowing into the fastening portion or the hole portion to cool down and solidify.