Customized Tungsten Carbide Ring

Description of Customized Tungsten Carbide Ring

Custom tungsten carbide rings are manufactured from virgin WC-Co alloy powder through a four-step process: spray drying, cold isostatic pressing, vacuum sintering, and hot isostatic pressing (HIP). The blanks achieve an HRA hardness of ≥91.5 and a density of 14.8–15.1 g/cm³. After sintering, the outer diameter is rough-ground using a centerless diamond grinder, the inner bore is internally ground, and both end faces are fine-ground using a 1500# diamond grinding wheel. The rings maintain an outer diameter tolerance of ±0.01 mm, an inner diameter tolerance of ±0.015 mm, and end face parallelism of ≤0.005 mm. Surface finishes include mirror polish, sandblasting, matte finish, and PVD black TiCN or TiAlN coating. Chamfers can be machined on a five-axis CNC machine to create 0.3×45° or R0.2 safety chamfers. Ring color varies depending on the process: polished to a bright metallic silver, sandblasted to a fine matte finish, and coated to a deep black or gunmetal gray. The color variation between batches is ΔE ≤ 1.0.

Common size range: outer diameter 8–80 mm, inner diameter 4–70 mm, thickness 1.5–20 mm; special specifications can be customized in 0.5 mm increments. After sintering, each ring undergoes C-Scan ultrasonic testing to ensure the absence of pores or cracks larger than 0.3 mm. The cobalt pool distribution is then inspected under a 200× metallographic microscope, with a porosity of ≤A02, B00, or C00.

Features of Customized Tungsten Carbide Ring

Tungsten carbide brings unmatched hardness to the table and withstands abrasive wear better than anything else in existence-making it a truly decisive barrier against the relentless grinding of slurry mixtures packed with sharp particulate matter. Its compressive strength carries the most demanding loads with no deformation whatsoever; the carbide rings keep their geometrical fidelity even in the presence of the most punishing pressures. The material's resistance to chemically hostile environments is dictated by the selection of the metal binder; tailored formulas impart remarkable immunity to both acidic and alkaline attack, securing reliable service in environments that would degrade lesser alloys.

Applications of Customized Tungsten Carbide Ring

As a stationary or rotating ring, paired with a graphite ring, ceramic ring, or another tungsten carbide ring, they form a sealing surface under high-speed rotation and high pressure, resisting wear and corrosion from the media and ensuring long-term leakage prevention. They are used as bushings, bearings, and sliding sleeves in extremely harsh, abrasive environments (such as mining mud pumps, sand pumps, and oil drilling). Their lifespan far exceeds that of steel parts. In wire and bar mills, tungsten carbide roller rings are used in finishing mill stands. Their high wear resistance ensures precise and stable product dimensions and reduces the number of roll changes.

Specifications of Customized Tungsten Carbide Ring

Precautions for Using Customized Tungsten Carbide Ring

1. Tungsten carbide possesses excellent hardness, yet it can fail catastrophically under shock. Minimize risk by preventing any strikes, drops, or blows, especially against steel. Press-fitting with nylon or copper media is preferred for assembly.

2. Pairing tungsten carbide rings with stainless steel shafts is best done within a 20 to 40°C temperature range, applying a 0.02 to 0.05 mm interference fit. This range confines stresses and mitigates the risk of ring fracture.

3. Do not allow coated rings to reach temperatures above 500°C. Such heat will oxidize and thereby compromise the protective TiCN and TiAlN multilayers, leading to premature wear.

4. For long shelf life, place rings in a dry, ventilated room, controlling relative humidity at or below 60%. Insulate the parts from any vapors of acidic or alkaline nature to guard against environmental attack.

Testing and quality control of Customized Tungsten Carbide Ring

FAQ for Customized Tungsten Carbide Ring

Are you a Customized Tungsten Carbide Ring factory or a Customized Tungsten Carbide Ring manufacturer?
A: Yes, we are a Customized Tungsten Carbide Ring factory but we generally use our trading company to handle the business abroad. It will be more convenient to receive the remittance and arrange the shipment.

What is the delivery method of the Customized Tungsten Carbide Ring?
A: Generally, we send a Customized Tungsten Carbide Ring by UPS, DHL or FedEx. Also, we can send by sea to a seaport or by air to the closest airport.

Why is your Customized Tungsten Carbide Ring so cost-effective?
A: We cut out the middlemen in the end-to-end manufacturing process and we obtain raw material directly from its source.

Do you do spot quality inspection of a Customized Tungsten Carbide Ring or full inspection of a Customized Tungsten Carbide Ring?
A: 100% full inspection for sure. All unqualified Customized Tungsten Carbide Rings are discarded.

How do you ensure your lead time for a Customized Tungsten Carbide Ring?
A: From material preparation to machining and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.

What is the MOQ of a Customized Tungsten Carbide Ring?
A: Depends on the quantity of Customized Tungsten Carbide Ring; generally, no MOQ limit.

How to pay for a Customized Tungsten Carbide Ring?
A: A bank transfer (T/T) will be acceptable.

What is the delivery time of a Customized Tungsten Carbide Ring?
A: Around 7-20 days, which depends on the quantity and production of the Customized Tungsten Carbide Ring.

What kind of package of a Customized Tungsten Carbide Ring is it?
A: Generally, we use a carton case or plywood case with protective material inside to ensure the safety of the Customized Tungsten Carbide Ring.

What is the lead time of a Customized Tungsten Carbide Ring?
A: From the order placed to cargo receiving will take around 10-25 days.

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