In manufacturing, quality control is a process that ensures customers receive products free from defects and meet their needs. When done the wrong way, it can put consumers at risk. 

For every business, quality assurance is different. However, ISO 9001 works for businesses both large and small and can be adapted for most any need. It provides the means for creating a lasting quality assurance program, ensuring that everything, from raw materials to inspection procedures are of the highest quality.

We use the powder metallurgy process which plays a significant role in the quality of the finished product. From accurately weighing raw materials and applying exacting temperatures at different stages, to precise machining and extensive quality control systems, attention to detail is key to ensuring finished tungsten alloy components meet the standards required by our customers:

Powder mixing – Raw tungsten powder is mixed with other lower melting point metal powders such as nickel, copper or iron to achieve the desired grade, something which is determined by weight, application and industry standards.

Pressing – The powder mixture is pressed to bind it into a solid block. Various shapes and sizes are produced at this stage in line with the finished item requirements.

Forming – Basic machining known as forming is carried out to cut the compacted powder into pre-sintered shapes. This reduces the amount of material to be machined off after sintering, minimising material usage, costs and machining time.

Sintering – Formed parts are sintered in a furnace which converts the pressed powder into the solid composite metal alloy. Parts shrink by around 15% but no mass is lost, which increases the density of the material

Machining – The sintered alloy is machined into the final parts using CNC machining centres, millers and lathes.

Quality control – Prior to dispatch, all parts are inspected for dimensional tolerances, traceability and density.

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Company:Shanxi Xinheng Rare Metal Co.,Ltd.
Tel:0086-29-62345866
Add: No. 18, Weiyang Road, Lianhu District,
Xi'an, Shaanxi Province, China.
E-mail:sales@sxxinheng.com
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