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Linyi Xiaowei Hardware Products Co., Ltd. was established in 2003 and enjoys a high reputation in the industry with many years of export experience. Our main products are: pull rivets pull flower rivets aluminum welding studs. We are located in Linyi City, Shandong Province, with convenient transportation, dedicated to strict quality control and thoughtful customer service, we insist on quality first and fast delivery, and our experienced staff are always available to discuss your requirements to ensure complete customer satisfaction. The company specializes in manufacturing All kinds of precision standard parts and non-standard parts of rivets can be customized according to the samples or drawings provided by customers.
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The products are sold well at home and abroad, with high quality and low price, fast delivery, and professional service, which have won unanimous praise from new and old customers.

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we focus on the one-stop solution of fluid pressure testing problems with quality products,perfect service,competitive price and timely.

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Six points to pay attention to when maintaining rivets_Linyi Xiaowei Hardware Products Co., Ltd.-Export non-standard, Export national standard, National standard

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Six points to pay attention to when maintaining rivets



1. Pollution caused by rinsing


Rivets need to be cleaned after quenching with a silicate cleaner and then rinsed, so be very careful when rinsing to prevent residue.


2. Unreasonable stacking of rivets


The rivet may show signs of discoloration after tempering, and there may be an oily residue after immersion in ether, indicating that the rivet surface is not clean. Analysis showed that the stacking of the rivets was unreasonable when heated, causing the rivets to slightly oxidize in the quenching oil.


3. Surface residues


The white residue on the high-strength screw was analyzed with the instrument and confirmed to be phosphide. This reaction occurs because the pickling machine was not cleaned and the rinse tank was not thoroughly inspected.


Fourth, alkali burns


High-strength screws are quenched with residual heat and have a relatively uniform and flat oil-black outer surface. After analysis, it was determined to be caused by alkali burns. Therefore, in China, steel rivets cannot form alkaline substances by removing some surfaces in quenching oil, so that the surface is burned at high temperatures in our country, and the injury of students is aggravated during different tempering. Thorough cleaning and rinsing of rivets is recommended prior to heat treatment to completely remove alkaline residues that directly cause rivet burns.


5. Improper rinsing


For large size rivets, it is usually quenched with a polymer solution, washed and rinsed with alkaline washers before quenching. After quenching, the inside of the rivet is rusted. So change the rinse water frequently to make sure the rivets don't rust while rinsing.


6. Excessive rust


Some black streaks are often seen on high-strength rivets, which are surface residues, baking and quenching oil, and contamination from gas phase precipitation during quenching. The quenching oil of the rivet manufacturer is over-aged, and it is recommended to add new oil.

we focus on the one-stop solution of fluid pressure testing problems with quality products,perfect service,competitive price and timely.

Copyright © Linyi Xiaowei Hardware Products Co., Ltd | TECHNICAL SUPPORT | YUNSU NETWORK