Application of precious metals such as gold, silver and platinum group
In order to reduce the risk of metal damage and corrosion during processing,
many jewelers have added nitrogen generators in their manufacturing process
to form a barrier between the metal and the environment.
Application of hydrogen in metal injection molding/sintering process
Ammonia cracking units are used to crack ammonia into nitrogen and hydrogen, and XITE is involved in the design, manufacture and export of ammonia crackers and ammonia purifiers.
Metal Injection Molding (MIM) is a metalworking process in which fine powdered metal is mixed with a binder material to form a "raw material" that is then molded and cured with injection molding. This molding process allows large quantities of complex parts to be molded in a single step. After molding, the parts are subjected to conditioning operations to remove the binder (debonding) and harden the powder. The finished product is a small part used in many industries and applications.
MIM includes different steps involving metal powders and adhesives
Mixing the two components to obtain a homogeneous raw material
Extruding the raw material to obtain spheres
Melting the pellets in an extruder
Injection of the melt into a die to obtain a green body
Drain the melt and remove the binder from the green body to obtain a brown body
Sintering the brown body to achieve a density of 95% of the current theoretical density, or even higher.
The following factors are recognized as typical process control factors for furnaces in order to achieve good reproducible quality of sintered parts
Measurement of sintering temperature
Measurement of dew point
Measurement of oxygen content with oxygen sensors
Furnace temperature profile
Cooling rate of the furnace
Furnace atmosphere capacity and composition
Position and orientation of the atmosphere layer
The sintering process is divided into three steps -
First step. Dewaxing between 300 °C - 800 °C to remove the green part of the lubricant
Second step. Sintering at 1120 to 1250 °C to form solid bridges or necks between individual powder particles
Third step. Cooling or rapid cooling to obtain microstructure and mechanical properties
For more information, please consult our professionals for the best solution. Tel: +86 18112526805
【Please indicate the source for reprint: www.xitegas.com】
- Petrochemical
- Food preservation, packaging
- Coal Mining
- Steel smelting
- Medical&Nursing
- Electronics
- Food processing
- Aquaculture
- Autoclave
- Tires
- Water Treatment
- Plastic moulding
- Laboratory high-purity gases
- Metal Processing
- Alcoholic Beverages
- Electric energy
- Microbial fermentation
- Metal welding
- Laser&plasma
- Blown Glass
- Aerospace industry
- Other Industries
- HVAC Industry
- Cement and building materials industry