Tungsten Carbide Roller

Tungsten carbide roller has characteristics of good wear resistance, high temperature red hardness, thermal fatigue resistance and thermal conductivity and high strength , have been widely used in high-speed wire rod, bar, rebar, seamless steel tubes, etc. Domestic production of tungsten carbide roller materials mostly WC- Co, WC- Co- Ni- Cr two series, and the content of Co, Co- Ni - Cr is in the range of 6wt% ~ 30wt%. From the use of perspective, tungsten carbide rollers has good mechanical properties, its flexural strength up to 2200 MPa or more, shock toughness up (4 ~ 6) × 10^6 J/ m^2, Rockwell hardness (HRA) is up to 78 to 90, widely in the high-speed wire rod rolling process, which is much higher than single-slot chilled cast steel or high speed steel rolls.

Tungsten carbide is made of tungsten carbide powder and binder phase (such as drilling, nickel, etc.), and then pressing and sintering, regardless of the conditions under cold rolled or hot rolled has excellent wear resistance, tungsten carbide rollers has been widely used in pre-finishing mill and finishing of high-speed wire rod currently. On the performance of tungsten carbide roller in hot-rolling wire rod , the material must meet the following requirements:

Tungsten Carbide Roller Picture

1. Sufficient anti-fracture strength;

2. Good abrasion resistance;

3. The smooth surface finish;

4. Excellent corrosion resistance, thermal fatigue, thermal cracking performance.

Tungsten carbide roller rings can working in bad conditions , small profile rolling (especially rebar rolling) process conditions is harsher than the high-speed wire rod, and therefore corresponds to the profile rolling ,tungsten carbide rollers recommend using high binder phase carbide.

Tungsten Carbide Roller Material Design

Pre-finishing all vehicles roller should ensure its high toughness, strength, rigidity and thermal conductivity, followed before considering its wear resistance. When designing each vehicles roller, pre-finishing materials should choose carbide grades of Co, Co- Ni- Cr binder content is high (greater than or equal to 25wt%) , requiring an average WC grain size of coarse (5μm ~ 6μm), to obtain a higher shock toughness, proper strength and hardness. For the finishing of the roller movements, particularly the last two rollers of the finish rolling, which suffered load is small, and high relative velocity of the material to be pressed (80 m / min ~ 120 m / min). In this case, the wear resistance of the roller to be the most important requirements, and must ensure the strength , timpact toughness and hardness of a reasonable match, so the binder of Co / Ni content ratio and the average grain WC control of particle size and other factors must have greater control in front of different pre-finishing rolling roll.

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Tungsten Carbide Punch

Tungsten Carbide Punch Picture

Tungsten carbide punch is mounted on metal parts stamping die, used in direct contact the material, and make the material ieformed, cutted. Tungsten carbide punch is a necessary accessorie to stamping die. Tungsten carbide punch depending on the punching material and thickness, to select a different alloy. Under normal circumstances, be thicker stamping products, tungsten carbide is better to choose the lower hardness and toughness of the model; the harder the material, select a slightly lower hardness models, which can effectively avoid the washed missing. When stamping relatively thin sheet metal , or hardness is not high, and hole machining of this product, tungsten steel punch can select higher hardness, thereby increasing the life of tungsten carbide punch. Tungsten carbide punch according to the different needs of the product, to produce different shapes, for example, a batch of drilling, the computer's chassis, there are a lot of top vents, as well as mobile phones, many of the electrical appliances, machinery the hole machining.

Tungsten Carbide Punch Applications

Due to the high punch size requirements, withstand greater impact loads and higher frequency of production, punch commonly is made by a high-speed steel or tungsten carbide material, tungsten carbide has high hardness, high hardness, high wear resistance, high red hardness, etc., generally used in demanding punching mold. Tungsten carbide punch are combined with the punch bar, punch nut, punch mother used together, generally used for punching tower plant uses. When stamping, large punch holes simultaneously processed hundreds takes less than one second, so greatly improves production efficiency. Therefore, tungsten carbide punch widely used in machinery manufacturing, automobile manufacturing, aerospace manufacturing and other fields.

Tungsten Carbide Punch Failure

Tungsten carbide punch is a key part to stamping die, improving tungsten carbide punch life can delay the failure of the mold. Its quality is not only related to the quality and performance of products, but also directly affect production costs and efficiency. Factors that affect the life of the punch are mainly design structure, selection of materials, machining, heat treatment, parts shapes and materials and so on. The daily work process tungsten carbide punch failure basic forms: plastic deformation, wear, fatigue, fracture. When punch working, the surface repeated contact with rough , plastic deformation and pitting of the cutting edge ,under the combined effect of the convex and concave mold adhesion gap, these phenomena with the alternating load and friction press, the temperature rise high and aggravated.

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Tungsten Carbide Flat Spray Nozzle

Tungsten Carbide Flat Spray Nozzle

Tungsten carbide flat spray nozzle is made from hot pressing with straight bore and venture bore type. Due to its hardness, low density and excellent wear and anti-corrosion, Tungsten carbide flat spray nozzle has been widely used in sandblasting and shot penning equipment, offering a long life with optimum air and abrasive use.

Tungsten carbide flat spray nozzle often is used in agricultural irrigation and urban greening. Used in geological prospecting, machinery/tool manufacturing and serves as drill bit in wind drill and electric drills for coal digging Fit for precision lathe are used in nonstop cutting of die-cast iron.

Tungsten carbide flat spray nozzle is for removing rust on the bottom of ship. It is used as types of manufacturing washing machines, coating line in the industries of motorcycles, bicycles, refrigerators and washing machines and cleaning equipments in the tungsten carbide flat spray nozzlemachinery industry. It is also used in humidification device in the light and textile services.

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Tungsten Carbide Sandblasting Nozzle

Tungsten Carbide Sandblasting Nozzle Loses Effectiveness

Tungsten Carbide Sandblasting Nozzle

Erosion is the main failure to tungsten carbide sandblasting nozzle, and it refers to the solid surface with the fluid containing solid particles to make contact with the relative movement, the surface loss of material occurs, the fluid carrying the solid particles may be high-speed airflow, can also be flow, the former produces blast type erosion, the latter known as mud-type erosion. Tungsten carbide sandblasting nozzle wear a low erosion angle (≤15°) of erosive wear. Erosion behavior affect many factors, such as environmental parameters (such as the angle of attack, erosion rate, erosion of time and temperature, etc.), abrasive properties (such as hardness, particle size and shape, etc.), target properties (such as hardness, fracture toughness structure and microstructure.

Tungsten Carbide Sandblasting Nozzle Classification Structure

1. Straight hole tungsten carbide sandblasting nozzle. Its internal structure is only contraction and straight paragraphs, simple structure, easy to manufacture. This form of the inlet end of the nozzle can not overcome the phenomenon of the existence of the vortex, the pressure loss of the abrasive exit velocity less than 100m/s under 0.7MPa pressure conditions. Generally used for small sandblasting equipment.

2. Venturi tungsten carbide sandblasting nozzle. The structure is divided into the venturi nozzle contraction section, straight sections and diffusion segment of three parts, production difficulties. Work efficiency increased by 15% -40% higher than the straight hole nozzle, abrasive consumption reduced by 20%.

3. Dual Venturi tungsten carbide sandblasting nozzle. Constituted by around two nozzles, double Venturi nozzle blasting area than the standard venturi nozzle blasting area is large 35 percent, the exit velocity of about reduced blast media. This nozzle is typically used for surface treatment of large areas of moderate intensity.

4. The angle tungsten carbide sandblasting nozzle. With the direction of movement of the abrasive flow changes, it can be used to clean up the bridges, towers and other steel trusses, the inner surface of the pipe, so that these can clean up the difficult site by a direct blow to the abrasive, achieve the purpose of cleaning up. 

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Tungsten Carbide Plum Button

Tungsten Carbide Plum Button Picture

Tungsten carbide plum button with special working properties, which is widely used in oil drilling and shovel snow, snow plow machines and other equipment. It is also used in coal mining machine drilling tools, mining machinery tools and road cleaning snow removal and road maintenance tools. It is used in quarrying, mining, tunneling, and civil construction.

Advantages

Tungsten carbide plum button has excellent wear resistance and impact toughness, and has higher drilling speed than similar products. The plum button series has a long cycle of passivation, and its non-wear life is about 5-6 times of the grinding life of the same diameter blade head, which is beneficial to save auxiliary working hours, reduce manual labor and speed up engineering.

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Tungsten Carbide Flat Button

Tungsten carbide flat button is made of high-purity tungsten powder with tungsten

Tungsten Carbide Flat Button Picture

content ≥99.95%, which with high strength and hardness, and the downhole drill bit has a longer service life. It has good wear resistance and impact toughness, and has higher drilling speed than similar products. The series of button has a long service life, and its non-wear life is about 5-6 times of the grinding life with the same diameter blade head bit, which is beneficial to save auxiliary working hours, reduce manual labor and speed up engineering. Tungsten carbide flat button molds are available, and can produce various sizes of tungsten carbide flat button according to your requirements.

Applications

Tungsten carbide flat button mainly used in medium and small scale tungsten carbide button, for the insertion of roller drills and impact drills, drilling into soft and medium hard rock formations, and also as alloy sheets for other drills. Tungsten carbide flat button are used for inserting roller drills and impact drills, drilling into soft and medium hard rock formations, and also as alloy sheets for other drills.

Any feedback or inquiry of tungsten carbide products please feel free to contact us:

Email: sales@chinatungsten.com

Tel.: +86 592 512 9696 ; +86 592 512 9595

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Tungsten Carbide Stick Nail

Tungsten Carbide Stick Nail Picture

Tungsten carbide stick nail also called tungsten carbide rod, horizontal bar-type sand mill is the essence of the same model around the broad, with high efficiency, strong contact, less pollution, automatic and reliable, grinding Cavity with high wear-resistant materials, pressure-powered mechanical piston used to change the volume of the grinding chamber, thus regulating the quality of the product, excellent selection, smooth operation. Tungsten carbide sticks are widely used in coatings, fuels, photographic materials, pesticides, paper and cosmetics industries such as high efficiency universal wet ultrafine grinding and dispersing machinery.

Stick nail is the part of the sand mill accessories, tungsten carbide stick nail with high impact resistance, corrosion resistance and high wear resistance, the product is produced by the advanced sintering technology and raw materials. Tungsten carbide nail is mainly used in coatings, inks, pigments, dye inks and other oily water product’s grinding. 

Application Areas

1. Industrial paint, automotive paint, paint, dyes, color paste and so on

2. Printing inks, gravure inks, electronic inks, printing inks, etc.

3. Drugs, cosmetics and other technology satisfied products.

Our tungsten carbide stick nails are all mixed by raw materials, use high-precision molding die suppression, and sintered with raw tungsten carbide. Stick tip is the parts of the frosted machine, which with impact resistance, corrosion resistance and high wear resistance.

Can be customized according to customer requirements, suitable for micron from the nano-level of different viscosity grinding, improve the dispersion grinding effect.

Recommended materials: YG8, YS2T, YG8N, YNi9, YL10.2, which with high wear resistance and corrosion resistance.

Any feedback or inquiry of tungsten carbide products please feel free to contact us:

Email: sales@chinatungsten.com

Tel.: +86 592 512 9696 ; +86 592 512 9595

Fax.: +86 592 512 9797

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