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Co-Ni-Cr tungsten carbide rolls performance

The hardness of tungsten carbide rolls increases with the increase of TC content; while the toughness increases with the increase of binder phase content.

Tungsten carbide roll has high hardness, and its hardness value changes little with temperature. The hardness value at 700℃ is 4 times that of high-speed steel; and the elastic modulus, compressive strength, bending strength, and thermal conductivity are also high. More than 1 times of tool steel. All these properties ensure that tungsten carbide rolls have much better wear resistance and deformation resistance than tool steel rolls in the working process, thereby ensuring the smoothness and dimensional constancy of the roll grooves, which is essential to ensure the surface quality of the wire rod. And dimensional accuracy is crucial. Due to the high thermal conductivity of the tungsten carbide roll, the heat dissipation effect is good, and the time that the roll surface is at a high temperature is short, so that the high temperature reaction time of the roll with harmful impurities in the cooling water is short. Therefore, tungsten carbide rolls are more resistant to corrosion and thermal fatigue than tool steel rolls.

Tungsten carbide rolls are produced by powder metallurgy using tungsten carbide powder and cobalt powder (a small amount of other hard phases or alloying elements can also be added) as raw materials. The above two powders were wet-milled and mixed with a ball mill. After the materials are uniformly mixed, they are dried and sieved to become the intermediate product-cemented carbide mixture. The mixture is pressed and sintered to become a roll blank. The roll blank is polished or re-grooved to become a production roll.

Density, hardness, bending strength, impurity content, surface roughness, material porosity, WC grain size, total carbon and free carbon content, magnetic saturation strength, coercivity, etc. In addition, there are also the processing accuracy of the rolls and so on. The level of each index reflects the quality of the roll and indicates its performance.


1.What does your factory supply?

We supply complete flux cored wire production line, cooper coated wire production line, welding electrodes production line, etc. We also supply related auxiliary machinery, machine accessories, and kinds of welding wire.

2.Do you manufacture, sell and export directly?

Yes, we do. We offer competitive price with high quality and excellent after-sale service.

3.Which country have your machine been sold to? (In the alphabetic order)

In the past decades, our machines have been sold to Brazil, British, Canada, Germany, India, Iran, Malaysia, Russia, Turkey, USA etc.


1.Advantages of series products. The company independently develops and designs complete production line of kinds of welding wire. Our main products include wire pay-off machine, strip cleaning machine, wire forming machine, wire drawing machine, wire take-up machine, wire rewinding machine, pail packing machine, wire cutting machine, powder mixer, wire-feeding machine, helix powder coating machine,  head-tail grinder machine, eccentricity measuring instrument, hydraulic slug presser etc. The product styles are diverse and the series are complete.

2.Customized function. The company specializes in the welding wire equipment industry for 20 years, constantly researching and developing new products, using the latest manufacturing technology, and launching a variety of series of machines, which can be tailored to companies and factories according to the differences in welding wire type and quality in different regions and local conditions. Create products with functions required by customers.

3.New product research and development advantages. The company attaches great importance to product research and development, constantly developing new product styles, adding new product features, and developing series of products. There are new products on the market every quarter, aiming at the needs of different customers. The richer the product line, the more choices consumers have, and the more opportunities for customers to make money.

4.Product technical advantages. The company has set up a professional R&D team to continuously overcome technical difficulties and develop new products every quarter. The product adopts the latest technology, energy saving and environmental protection, and fully automatic computer control. Ensure that the welding products occupy a leading position in the market's research and development technology field, allowing welding wire production companies to grasp the initiative in the market.

About Three Water

Established in 1998, Tianjin Three Water Machinery is a manufacturer and trader specialized in the research, development and production of welding wire production line. We are professional manufacturer of welding material machine specialized in flux cored wire & solid wire plant project consulting and manufacturing, various types of wire drawing machine used in metal products processing and auxiliary machines in wire production. We are specialized in R&D flux cored wire machine, cooper coated wire machine, welding electrode machine and related auxiliary equipment. With novel design, professional manufacturing and rich machine-operation experience, our machines have been widely recognized and highly appreciated by customers from overseas and domestic. The company is located in Tianjin, with convenient transportation access. It is 60km away from Xingang Port, and 90km away from Beijing Airport. All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.

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