Blades For Agricultural Machinery Such As Crop Cutting
ZhuZhou Gold Sword Cemented Carbide Co., Ltd. Located In Zhuzhou
City, Hunan Province, Which Is The Largest Cemented Carbide
Production And Sales Base In China. Our Main Products Are Carbide
Strips, Carbide STB Bars, Carbide Sand Breaking Strips, Carbide ASA
Brazing Tips, Carbide Cold Heading Dies And Carbide Rods. Our
Professional And Technical Personnel All Have Above 15 Years Of
Cemented Carbide Production Experience, The Rich Experience Can
Provide Our Customers Of High-Quality Products And Thoughtful
Technical Support, And Continuous Improvement To Meet Customer
Needs.
The "stability" and "consistency" of products are the focus of our
quality control.
First of all, we have advanced equipment, such as spray tower,
Solid furnace , isostatic static pressure punching machine.
We select raw material which is exclusive manufacturer.We make sure
we have enough stock,all sizes of strips and types are complete,To
ensure the capacity have a monthly output of 5 tons.The company
uses advanced testing equipment to continuously formulate and
improve the quality control system.
Strictly train a quality control technician with outstanding
skills,
According to the raw material monitoring, process production and
final inspection,
The whole process is strictly monitored in accordance with
international quality control system standards;
All-round inspection of products from chemical composition,
organization structure, physical properties, appearance size, etc.
Adopt dedicated full-time responsibility system to achieve
professional services,when we find problems timely feedback, prompt
delivery and solve processing problems quickly.
We have been rooted in the cemented carbide industry and have
served foreign trade companies in the Zhuzhou industry for many
years. Our customers are mainly metal processing, woodworking and
textile tools, petroleum machinery, etc., and are well received by
customers.
Based on the damands of customers , for different industries,
different materials and different working conditions, provide
customers with accurate service and solutions of products, and
provide high cost-effective products, to keep the promises of our
customers, and Timely provide the professional technical services.
Application scope of tungsten steel Strips:
1. Used to make blanking dies. High-speed die and multi-station
progressive die used for blanking copper, aluminum, stainless
steel, cold-rolled sheet, EI sheet, Q195, SPCC, silicon steel
sheet, hardware, standard parts, upper and lower punches, etc.
2. Used to make knives. Such as woodworking industry knives,
plastic crushing knives and so on.
3. For making high temperature resistant parts, etc. Such as the
guide rail of the machine tool, the anti-theft reinforcement board
of the automatic teller machine, etc.
4. Used to make chemical industry parts.
5. The material properties of cemented carbide sheets for different
purposes are not consistent. When using, a cemented carbide sheet
of suitable material should be selected according to the
application.
Carbide production process:
1: In the stage of removing the forming agent and pre-sintering,
the sintered body changes as follows:
Removal of the molding agent, with the increase of temperature in
the initial stage of sintering, the molding agent gradually
decomposes or vaporizes, and the sintered body is excluded. The
type, quantity and sintering process are different.
The oxides on the surface of the powder are reduced. At the
sintering temperature, hydrogen can reduce the oxides of cobalt and
tungsten. If the forming agent is removed in vacuum and sintered,
the carbon-oxygen reaction is not strong. The contact stress
between powder particles is gradually eliminated, the bonding metal
powder begins to recover and recrystallizes, surface diffusion
begins to occur, and the briquetting strength is improved.
2: Solid phase sintering stage (800℃--eutectic temperature)
At the temperature before the appearance of the liquid phase, in
addition to continuing the process of the previous stage, the
solid-phase reaction and diffusion are intensified, the plastic
flow is enhanced, and the sintered body shrinks significantly.
3: Liquid phase sintering stage (eutectic temperature - sintering
temperature)
When the liquid phase appears in the sintered body, the shrinkage
is completed quickly, followed by crystallographic transformation
to form the basic structure and structure of the alloy.
4: Cooling stage (sintering temperature - room temperature)
At this stage, the structure and phase composition of tungsten
steel have some changes with different cooling conditions. This
feature can be used to heat-trench tungsten steel to improve its
physical and mechanical properties.
Products display
Contact Manager
Tracy Tang
whatapp/wechat:+8615873380794
Web:www.goldswordcarbide.com
Email:tracy@goldswordcarbide.com
