Services
Relink’s service philosophy & vision
Empowering Your Success
Our development strategy is built on delivering tangible value—shorter procurement cycles, reduced costs, and enhanced market competitiveness. By combining technical expertise, comprehensive services, and strict quality control, we empower your business to thrive. Partner with Relink and experience the difference of a team dedicated to your success.
Integrated Manufacturing: Our Systemic Tooling Solutions
Systemic tooling solutions are essential for eliminating the hidden material waste and unexpected machine downtime that often arise from isolated production stages in modern metal processing. To bridge these operational gaps, We engineer an interconnected product ecosystem where every specialized consumable works in perfect harmony—from initial wire processing to final product shaping
Our approach as your strategic procurement consultant goes far beyond supplying individual parts. We deliver a comprehensive, interconnected product ecosystem tailored to your specific machinery and regional feedstock qualities, effectively reducing technical friction across your factory floor to elevate your industrial productivity and local market competitiveness.
To achieve this seamless cross-process synergy and ensure unmatched wear resistance for your production lines, our own manufacturing framework encompasses 11 distinct production stages, each rigorously engineered to guarantee high-quality tungsten carbide products:
Material Selection
Choosing high-quality tungsten carbide raw materials is crucial. We collaborate with top domestic suppliers, and although our prices are higher, RELINK prioritizes stable quality to deliver long-term value.
Wet Grinding Process
We use a ball mill containing 2.4-3 tons of alloy balls, capable of holding 500-600 kg of powder. After 40 hours of continuous grinding, we achieve various particle sizes of the tungsten carbide and cobalt powder mixture.
Spray Drying
We employ a large spray tower to replace traditional drying methods. The resulting powder particles have good roundness and uniform size, resulting in high density after pressing, with no cracks, delamination, or uneven density during sintering.
Blanks Pressing
Depending on the product, we adopt various pressing techniques. Isostatic pressing is the most common method, ensuring that the pressed green bodies have uniform density and no defects, thus enhancing quality.
Low-Pressure Sintering
The pressed green bodies are placed in a low-pressure sintering furnace. Through high temperature and pressure, the carbide particles bond to form a tough and wear-resistant material. Our process includes vacuum sintering to 1350 degrees Celsius and low-pressure sintering to over 1400 degrees Celsius, lasting a total of 18 hours with 7 hours of cooling. The primary function of low-pressure sintering is to reduce micro-porosity, which is one of RELINK’s main goals.
Blanks Testing
For each batch of sintered products, we retain sample blocks to ensure quality tracking from the source. We test the green bodies for hardness, density, flexural strength, and metallography, and only those passing all tests proceed to finishing.
Finishing
Mold processing employs top Japanese CNC machines, Nakamura-Tome, which enable drilling, grinding, electrical discharge machining, and polishing. This ensures precise dimensions, stringent polishing standards for internal cavities, excellent surface roughness, and prolonged product lifespan.
Finished Product Testing
We utilize various testing tools, including calipers, micrometers, roughness testers, and coordinate measuring machines. We provide quality inspection reports per customer requirements, ensuring RELINK products perfectly match client needs.
Packaging
We choose different packaging methods based on product shape. Typically, we use small boxes for filling and then package them in corrugated cardboard boxes. For orders exceeding 20 pieces, we can palletize, and for large custom items, we can use wooden crates. All packaging ensures that products remain undamaged during transport while enhancing their appearance to exceed customer expectations.
Logistics
We support international express shipping via FEDEX/DHL/UPS. For shipments over 40 kg, sea and air freight options are available, and we provide CO to help clients reduce tariffs. Our services include full tracking of logistics progress and assistance with import customs clearance to ensure customers receive their products smoothly.
After-Sales Service
If you have any feedback regarding product quality, please contact us promptly. Our professional sales and technical team will assist in identifying the cause and providing solutions. The first purchase is just the beginning; our goal is to become your lifelong partner.
Relink Products Grade
Tungsten Carbide & Steel Grades
| High Speed steel | Material | HRC | Features | Application | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| JJS | Others | C | Cr | W | Mo | V | Co | |||
| SKH-51 KH- | M2 | 61-64 | 0.85 | 4.15 | 6.5 | 5.3 | 2.05 | Advanced punch, die, screw die, tooth plate, ejector pin wear resistance Excellent impact resistance and toughness | ||
| SKH-55 | 63-66 | 0.9 | 4.2 | 6.5 | 5.3 | 2.05 | 5 | High hardness, excellent wear resistance and high-temperature strength, Alloy high-strength screw mold | ||
| SKH-59 | 64~67 | 1.05 | 3.8 | 1.6 | 9.5 | 1.25 | 8.3 | High speed, high heat resistance, high wear resistance The most resilient stainless steel screw punch, die, and screw mold | ||
| ASP-30 (A8SAB | M42 | 66~68 | 1.27 | 4.2 | 6.4 | 5 | 3.1 | 8.5 | High load cutting die, powder high-speed steel, stainless steel screw ejector pin Hollow nail suppression punch rod | |
| Mould Steel | S45C | 25~64 | High quality carbon structure, reasonable price. | Nuts, screws, general mechanical parts, general scissors, cutting molds, tooth plates | ||||||
| SKD11 | 58-61 | Wearing resistant without deformable and impact resistant | Cold stamping die, cold extrusion die, standard module, first punch set, second punch set | |||||||
| SKD11 | C2MoV(GB) | 58~61 | Wearig resistant chromium steel, under deformation, offer competitive price. | Cold forming molds, cold drawing molds, screw head molds, wire molds, scissors | ||||||
| SKD11 | SLD(HITACH0) | 60-62 | Wearing resistant, stamping resistant, high toughness | High load-bearing capacity, cold forging, deep drawing mold, alloy stainless steel, screw, tooth plate | ||||||
| SKD11 | DC53(DAIDO) | 61-63 | High hardness, high strength, toughness, and excellent wear resistance | |||||||
| SKD61 | 43~53 | Heat shock resistance, heat deformation resistance, heat fatigue resistance, relatively soft hardness | Hot work mold, screw main mold shell | |||||||
| H13 | 59-61 | 59-61 | Exceptional hot hardness and abrasion resistance, general hardness, and toughness. | Used for extrusion dies, forging dies, stamping tools, etc. | ||||||
| GRDDE | COTENT % | DENSITY | HARDNESS | TRS | |
|---|---|---|---|---|---|
| Co | WC | g/cm3 | HRA | MPa | |
| YG6 | 6 | 94 | 14.85～15.05 | ≥89.50 | ≥1800 |
| YG6X | 6 | 93.53 | 14.85～15.05 | ≥91.00 | ≥1700 |
| YG6A | 6 | 92.12 | 14.85～15.05 | ≥91.50 | ≥1600 |
| YG8 | 7.8 | 92.2 | 14.65～14.85 | ≥89.00 | ≥1900 |
| YG10 | 10 | 90 | 14.40～14.60 | ≥88.0 | ≥2300 |
| YG11 | 11 | 89 | 14.30～14.50 | ≥87.00 | ≥2000 |
| YG11C | 11.5 | 88.5 | 14.20～14.40 | ≥86.50 | ≥2400 |
| YG12 | 12 | 88 | 14.21～14.41 | ≥88.0 | ≥2500 |
| YG15 | 14.9 | 85.1 | 13.95～14.15 | ≥86.50 | ≥2220 |
| YG16C | 16 | 84 | 13.80～14.00 | ≥84.00 | ≥2480 |
| YG20 | 20 | 80 | 13.45～13.65 | ≥83.50 | ≥2480 |
| YG20C | 20 | 80 | 13.40～13.60 | ≥82.00 | ≥2480 |
| YS2T | 10 | 88.12 | 14.35～14.55 | ≥91.50 | ≥1960 |
| YL05 | 4 | 94.15 | 14.95～15.11 | 1760～1940 | ≥1130 |
| YL10.2 | 10 | 89.57 | 14.40～14.55 | 1550～1650 | ≥1610 |
| YGH20 | 10.5 | 89.5 | 14.30～14.50 | ≥86.5 | ≥2500 |
| YGH25 | 13 | 87 | 14.10～14.30 | ≥85.5 | ≥2520 |
| YGH30 | 15.2 | 84.8 | 13.90～14.10 | ≥84.0 | ≥2520 |
| YGH40 | 18.2 | 81.8 | 13.60～13.80 | ≥83.5 | ≥2570 |
| YGH45 | 20.05 | 79.95 | 13.45～13.65 | ≥82.5 | ≥2570 |
| YGH50 | 22 | 78 | 13.25～13.45 | ≥82.0 | ≥2570 |
| YGH55 | 26 | 74 | 12.90～13.10 | ≥81.0 | ≥2570 |
| YGR20 | 4.5 | 89.57 | 14.38～14.58 | ≥85.5 | ≥2400 |
| YGR25 | 6.2 | 87.08 | 14.10～14.30 | ≥84.5 | ≥2480 |
| YGR30 | 6.64 | 85.1 | 13.93～14.13 | ≥83.5 | ≥2360 |
| YGR40 | 8 | 82.13 | 13.60～13.80 | ≥82.5 | ≥2400 |
| YGR45 | 9 | 80.13 | 13.45～13.65 | ≥81.0 | ≥2250 |
| YGR55 | 12.67 | 73.79 | 12.90～13.10 | ≥79.5 | ≥2400 |
| YGR60 | 13.2 | 70.2 | 12.58～12.78 | ≥79.0 | ≥2200 |
| KG5 | 88 | 12 | 14.31 | ≥88.3 | ≥3400 |
| KG6 | 86 | 14 | 14.12 | ≥87.3 | ≥3200 |
| EA65 | 82 | 18 | 13.75 | ≥85 | ≥3000 |
| EA90 | 76 | 24 | 13.22 | ≥82.8 | ≥2700 |
| ST6 | 85 | 15 | 13.8 | ≥86 | ≥2700 |
| ST7 | 80 | 20 | 13.58 | ≥85.3 | ≥2700 |
| VA80 | 80 | 20 | 13.58 | ≥84 | ≥2800 |
| VA90 | 78 | 22 | 13.39 | ≥82.5 | ≥2400 |
| VA95 | 75 | 25 | 13.12 | ≥81.15 | ≥2200 |
Providing Factory Services of Superior Quality with Focus on Efficiency.
Pre-Sales Support
Our pre-sales services enable informed decisions
Sales Excellence Experience
During the sales phase, we focus on efficiency and value
After-Sales Commitment
We stand by you long after the sale with
Quality Assurance
- Instrument Testing: Advanced testing equipment verifies product specifications and performance, ensuring compliance with international standards.
- Individual Packaging: Each product is carefully packaged to protect its integrity during transit, tailored to specific customer requirements.
- Final Careful Packing: We conduct meticulous final inspections and packing to guarantee products arrive in perfect condition.
- Quality Control: Rigorous checks at every stage, from production to logistics, uphold our commitment to excellence.
Product Quality Index
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