HRA89 Tungsten Carbide Blades For Crop Cutting Agricultural Machinery

Product Specification

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.

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