DIN934 Weld Nut 10.9 Steel Blackened By Heat Treatment M8 - M24

DIN934 10.9 steel Blackened by heat treatment M8-M24 weld nut for engine parts.

Description

Welding nut is a kind of nut suitable for welding outside the nut. It is generally made of weldable material and is thicker and suitable for welding. Welding is equivalent to turning two separate parts into a whole, melting the metal at high temperature and mixing it. After cooling down together, alloys will be added in the middle, and the interior is the effect of molecular force, and the strength is generally greater than that of the parent body.

Features of heat treatment process operation method:
1. Annealing operation method: After heating the steel to Ac3+30~50 degrees or Ac1+30~50 degrees or the temperature below Ac1 (relevant information can be consulted), it is generally cooled slowly with the furnace temperature.

2. Normalizing operation method: heat the steel to 30~50 degrees above Ac3 or Accm, and cool it at a cooling rate slightly greater than that of annealing after heat preservation.

3. Quenching operation method: heat the steel to above the phase transition temperature Ac3 or Ac1, keep it for a period of time, and then quickly cool it in water, nitrate, oil, or air. Purpose: Quenching is generally to obtain a high hardness martensite structure, and sometimes when quenching some high-alloy steels (such as stainless steel and wear-resistant steel), it is to obtain a single uniform austenite structure to improve wear resistance. and corrosion resistance.

4. Tempering operation method: reheat the quenched steel to a certain temperature below Ac1, and after heat preservation, cool it in air or oil, hot water or water.

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Q1: Can I visit your factory?
A2: Yes! Warmly welcome to visit our factory. It would be Great if you can inform us in advance.

Q2: The quality of your products?
A2: The company has advanced production and testing equipment .Every products will be 100% inspected by our qc department before
shipment.

Q3: How about your price?
A3: High quality products with reasonable price. Please give me a inquire, I will quoted you a price for you refer at once.

About us

Jiaxing Dexun Co., Ltd. was established in 1997, origin from Taiwan, we are professional manufacturer and exporter integrated with design, research & development, manufacturing and sales of OEM/ODM stamping parts,deep drawing parts, standard welding fasteners and non-standard welding fasteners.

* Located in jiaxing city, only about 1 hour's drive from Shanghai, Hangzhou, Ningbo, Suzhou, these important cities, the transportation is very convenient.

* 2 mature mould development workshops with advanced equipment to develop mould for customers.

* 2 International approvals,Verify & certificate in accordance with ISO9001,IATF16949, work with SGS, operate the PPAP Level 3.

* 2 labs of quality inspection,Control products quality strictly; equipped with various quality testing machines including direct-reading spectrometers, tensile testing machines, CMM machine, X-ray flaw detection instrument.

* 2 quenching and tempering heat treatment lines.

* 2 automatic welding lines.

* 4 Powder coating & Painting lines, Plating lines

* 42 people professional R&D team : 30 special technicians and 12 senior engineers.

* 20 years’experience on manufacturering OEM/ODM products

* 100 sets of automatic production machines: Have 10 sets of automatic stamping & deep drawing equipments, 50 cold forming machines; 40 tooth grinding machines ,equipped with Japan, Germany,etc imported machines.

* 175 employees

* 10 millions monthly production capacity

* 35 countries exported to

* Supplying products to GM,John deere,Wal-Mart，etc

* Implement environment protection concept; strictly operate the facilities and processes under environmental requirements.

We use advanced equipment to improve cost and quality at the same time to make sure lowest price and best quality for customers. We have quality control experts & engineers to test every piece product before shipment. We keep on studying to provide professional service.

Our Mission & Vision

We always work hard to be an environment protection model enterprise. We strive for sustainable development. We hope to be a win-win partner of our customers all over the world.

Environment protection mission:

A full series of environment policies are applied to our every manufacturing activities. Firstly, to propagandize environment protection policy to make sure environment-friendly concept is everywhere in our company.
Every new staff will have environment protection training class. All staffs have environment protection knowledge and policy lecture every month. All the operation manual will marked out environment protection requirements.
Secondly, to establish environment protection responsibility policy.
Thirdly, to have basic environment protection management.
Step 1: Have environment monitor every time.
Step 2: Manage the pollutant treatment equipment efficiently.
Step 3: Establish permit system of pollutant discharge.
Step 4: Establish legal audit system.
Fourthly, to build up emergency rescue system.