Copper is softer than steel or stainless steel and will adhere to the surface. Upon heating and cooling (like welding etc.) the copper will diffuse into the grain boundaries forming low melting point films on the grain boundaries. These films weaken the grain boundaries and will cause cracking.
John du Plessis
Technology Manager
Tel: +27 (11) 298 2100
Tel: +27 (11) 298 2103 (Direct)
Fax: +27 (11) 836 6014
This email and any files transmitted with it are confidential and may be legally privileged. They are intended solely for the use of the individual or entity to whom they are addressed. Access to this e-mail by anyone else is unauthorised, and any disclosure, copying, distribution or other use of this e-mail is prohibited and may be unlawful. We will not under any circumstances have any responsibility or liability arising out of or in connection with any unauthorised use of this e-mail. If you have received this email in error please notify the sender before deleting it.
From:
Sent: 22 September 2010 01:14 PM
To:
Subject: [MW:7145] Copper Slag Abrasive
Hi everyone,
I came across many coating specs which are having one common sentence " Silica sand and copper slag shall not be used for blasting".
What is the issue with using copper slag ? What are the dis advantages of copper slag?
--
- Sreejith Nair-
--
To post to this group, send email to
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
No comments:
Post a Comment