Brass rivet surface treatment and extraction method
Brass rivets are usually surface treated when manufactured, which extends the life of brass rivets. Let me talk about the surface treatment method and extraction method of brass rivets. I hope to help everyone.
Brass rivet surface treatment
1. Electroplating: The stainless steel brass rivet member to be plated is immersed in an aqueous solution containing a deposited metal compound, and the metal to be plated is deposited by a current through the plating solution and deposited on the member. Generally, zinc, copper, nickel, chromium, copper and nickel alloys are electroplated, and sometimes black (blue), phosphating, and the like are also included.
2. Hot dip galvanizing: immersed in a molten zinc plating bath at about 510 ° C by carbon steel parts. As a result, the iron-zinc alloy on the surface of the steel sheet gradually becomes passivated zinc on the outer surface of the product. Hot dip aluminizing is a similar process.
During plating, the plated metal is unevenly deposited on the edges, resulting in a thicker coating at the corners. In the threaded portion of the fastener, a thicker coating is placed on top of the thread, tapering down along the thread side, depositing a thinner coating on the bottom of the tooth. Instead, a thicker coating is deposited on the inner rotation angle and bottom of the thread. The mechanical coating has the same tendency to deposit as the hot dip coating, but is smoother and is at the bottom of the tooth.
Brass rivet extraction method
1. Directly use the corresponding size of the drill to open the brass rivet against the hole;
2. Grind the brass rivet with a small grinding wheel and then pry it out with pliers;
3. Insert the metal piece into the gap between the brass rivet and the object, then insert the metal piece between the metal piece and the brass rivet with a flat-blade screwdriver, twist it with force, gently apply it, and get up a few times, so that it will not hurt. article.
The above is about the surface treatment method and extraction method of brass rivets. I hope everyone can understand the surface treatment methods and extraction methods of brass rivets.
