February 22, 2025

Common defects in heat treatment: quenching and decarburization

Process: quenching and tempering

Common defects: quenching and decarburization

cause:

1. In the salt bath, the content of water, oxygen and impurities (such as sulfates, carbonates) is too high. The iron oxide scale falls into the furnace. The nitrate salt is brought into the furnace. Poor deoxidation and incomplete slag removal. The quenching fixture has rust 6. Summer air humidity is too high

Preventive measures:

1. Barium chloride must be dried and dehydrated after 300~500?C, 2~4h before use. Before quenching and heating, the salt bath is strictly deoxidized and slag. Always clean the electrode scale. Regularly change the salt 5. Clean the quenching fixture rust and dry

Approach:

1. Severe decarbonization is scrapped. Decarburization depth is less than the amount of retained grinding, and can be used as a qualified product. The decarburization depth is greater than the retained grinding amount. After quenching and tempering, the surface hardness is not lower than 55~60HRC, and it can be remedy by annealing and carburizing.

Flowers Pattern Mosaics

We will check every sheet before shipment to make sure our clients get all the excellent mosaic tiles! Don't hesitate to order,We will be dedicated to serve you, customer satisfaction is our aim.

Here you can find the related products in Strip/Rectangle Shape Glass Mosaics, we are professional manufacturer of Rectangle Shape Glass Mosaics,Strip Shape Glass Mosaics,Mini-Brick Marble Mosaic,Glass Mosaic Wall Decor. We focused on international export product development, production and sales. We have improved quality control processes of Strip/Rectangle Shape Glass Mosaics to ensure each export qualified product.

If you want to know more about the products in Strip/Rectangle Shape Glass Mosaics , please click the product details to view parameters, models, pictures, prices and other information about Rectangle Shape Glass Mosaics,Strip Shape Glass Mosaics,Mini-Brick Marble Mosaic,Glass Mosaic Wall Decor.
Whatever you are a group or individual, we will do our best to provide you with accurate and comprehensive message about Strip/Rectangle Shape Glass Mosaics!

Mosaic Pattern,Interior Wall Mural Mosaic,Flowers Pattern Mosaic Mural,Customized Mosaic Pixel Mural

Gong Loon Jadeite Manufacture Co.,Ltd , https://www.bluebird-mosaic.com