Specifications

1 tungsten carbide cold forgings/ die casting
2.10 years of stable relationship with our customers
3.The most advanced tools

About ZZ MINGRI

Zhuzhou Mingri Cemented Carbide Co., Ltd has lead the manufacturer of  tungsten carbide cold forging die casting since 2003.

Our advantage is as follows:

 

1. Zhuzhou Mingri has the richest molds stock of cold forging dies
2. 10 years of stable relationship with our customers
3. The most advanced tooling house
4. The largest production capacity and fastest delivery
5. The most reliable testing machines for all specifications
6. The best and reliable after service

 

 

1. About raw materials and powder:

Soon after the order is confirmed, our production will start to prepare the RTP powder as per customer’s requirement with our wet-grinding machine.

 

 

 

2. About pressing:

1).How do Mingri start a production? How do we check?

Before mass production, we need to do a trial pressing and sintering using every mould, and we check the appearances and the sizes of the samples with micrometer, projectors etc. to ensure that the requirements of the drawings can be met before batch production;

 

3. About Furnace:

1).How many furnaces?

10 sets of vacuum sintering furnace and 1set of HIP

10 sets of sintering furnace and one set of HIP in the factory ensure the best quality and production capacity.

4. About cleaning/tumbling :

1). cleaning/tumbling is to make the products look more beautiful.

2).The goods can be ground according to customers’ order to a tolerance of +/-0.05

 

5 About laboratory:

1.How do you produce samples for control?

We sample each batch RTP into pressing and sintering, only when certificated by the laboratory, the RTP can be put into mass production.

 

6. About Packing :

The cargo can be packed with internal paper boxes and then external cartons or metal buckets. The packing can also be as per your order.

 

TIPS for your references:

1).how to choose the suitable grade( grade information)

As cold forging dies can be widely used in all industry, several grades are designed to perfectly meet all needs.

 

 

Grade				Performance & application recommended
	Density	T.R.S	Hardness
	g/cm3	MPα	HRA
A	13.5	3000	83.5	Good wea ristance and high bending strength. Primariy for nut forming dies and high impact resistance forging dies.
YM11	14.4	2420	88.5	Forming or stamping dies for metal powders and nonmetal powders.
YM15	14.0	2500	87.5	For fabricating drawing dies of stain tubes and rods under High compressibility ratio;punching,stamping ,froging tools under large stress.
YM20	13.5	2800	85.5	For fabricating of stamping dies for watch parts, spring plates of musical instruments, batters jars, small sized steel balls, screws, screw caps.
ML32	13.9	2750	85.5	Impact resistance forging dies
ML35	13.7	2800	84.5	Impact resistance forging dies, hot-press forging dies and rollers.
ML40	13.5	2850	83.5	Dies for resistant or impact resistant application.
ML50	13.3	2900	83.0	Nut forming dies and high impact resistance forging dies.
ML60	13.1	2950	82.5	Stainless bolt header dies and rollers.
ML90	13.3	3200	82.0	Screw cap forming dies with high impact resistance ( Highest impact resistance forging dies).
Other grades may be offered by customers' requirements