1. Introduction: Explore Rleey Tungsten Carbide Factory

Many overseas buyers want to know the real production status before placing bulk carbide orders. Our factory tour gives clients a clear view of our tungsten carbide production workshop and end-to-end quality control workflow. Unlike traders, Rleey owns complete powder metallurgy production lines and independent testing lab. Every carbide component, from raw powder input to finished shipment, is managed by standardized SOP to keep batch stability, reduce hidden defects and shorten lead times.

2. Main Workshop Zones & Production Layout

Our factory is divided into separated functional zones to avoid cross-contamination and manage production priority:

• Powder Processing Workshop: Raw material receiving, WC powder mixing, granulation and formula preparation. Strict dust control and batch number tracking for all powder lots.
• Compression Pressing Workshop: Hydraulic presses for blank forming, including standard shapes and custom near-net-shape preforms.
• Sintering & HIP Workshop: Vacuum sintering furnaces and HIP equipment to densify carbide blanks, eliminating internal pores for high toughness grades.
• Precision Machining Workshop: Grinding, EDM, polishing and surface finishing for sintered carbide blanks to meet tight dimensional tolerances.
• QC & Inspection Lab: Independent testing area for mechanical tests, metallographic analysis and document preparation.
• Packing & Warehouse: Finished goods storage, protective packaging and shipment preparation for international orders.

3. Full Production Step-by-Step Workflow

1. Raw Material Incoming Check: Inspect virgin WC powder and cobalt binder, verify powder purity and particle size before warehousing.
2. Formula Mixing & Granulation: Mix powder according to customer grade requirements, mill and granulate for good pressing performance.
3. Die Pressing: Press powder into carbide blanks with controlled pressure to guarantee uniform green density.
4. Vacuum Sintering: High-temperature sintering inside vacuum furnace to form dense cemented carbide matrix.
5. HIP Post-Treatment (Optional): Hot isostatic pressing for high-performance parts to close residual micro-pores.
6. Rough & Precision Machining: Grind, wire cut and polish sintered blanks to reach drawing tolerance and surface finish.
7. Final Batch Inspection: Complete dimension measurement, mechanical property sampling and record COA documents.
8. Packing & Delivery: Anti-collision packaging for carbide parts and arrange shipment.

4. Multi-Stage Quality Control System

5. In-House QC Laboratory Capabilities

Our on-site QC lab is the core support for the whole quality control workflow. We can carry out a full set of carbide tests without sending samples to third-party labs, shortening testing cycles. Available tests include hardness (HRA/HV), density measurement, transverse rupture strength (TRS), metallographic microstructure inspection, grain size measurement, porosity and phase evaluation. All test data is recorded and archived, and COA certificates can be provided for every shipment batch.

6. What Our Workshop & QC System Bring to Buyers

Integrated workshop and full-chain QC bring tangible advantages for global carbide purchasers:

• Full batch traceability from powder lot to finished products for quality audit
• Reduce risk of inconsistent material performance between different orders
• Flexible support both standard carbide stock items and highly custom parts
• Fast sampling and failure analysis if any quality issue appears
• Provide complete inspection documents including dimension reports and COA

7. FAQ