Now the plastic mold which has been more and more to start using beryllium copper mold materials, and an upward trend! Why? The following features on the beryllium copper we talk about a few!

1 sufficient hardness and strength: After many times of experimentation, engineers can identify and beryllium copper powder(FCu) master alloy the precipitation hardening of the best conditions and best working conditions there are the mass properties of beryllium copper (This is beryllium copper alloy products began to use the official prelude to the market); beryllium copper used in plastic mold is needed before the test repeated to end the cycle of the best in line with manufacturing and processing of physical characteristics and chemical composition determined; theory and practice that - beryllium copper hardness HRC36-42 can be achieved when the plastic mold manufacturing requirements for the hardness, strength, high thermal conductivity, metal powder supplier simple and easy machining, mold longevity and reduces development cycle time, etc. .

(2) good thermal conductivity properties: the thermal properties of beryllium copper materials help control the temperature of the mold plastics processing, and easier to control the molding cycle, while ensuring the uniformity of the mold wall temperature; manganese powder if compared with steel, beryllium copper forming cycle to be much smaller, the average temperature of the mold can be reduced by 20%, when the average temperature and touch off the mold wall temperature difference between the average small (for example, can not easily be cooled in the mold parts in the case) the use of beryllium copper mold materials, cooling The time can be reduced by 40%. The mold wall temperature is only reduced by 15%; over beryllium copper mold material properties of this material will bring several benefits to mold manufacturers to shorten cycle time, productivity increase; mold wall temperature uniformity is good, pull the products to improve quality; simplify the structure of the mold, because the cooling pipes to reduce; can increase the material temperature, thus reducing the thickness of products, reduce product costs.

3 die long life: the budget and production tooling costs continuity, boron powder for the manufacturers is the expected life of the mold is very important, in the strength and hardness of beryllium copper to meet the requirements of the situation, beryllium copper mold temperature the insensitivity of stress can greatly improve the life of the mold, the mold material to determine the use of beryllium copper beryllium copper before also taking into account the yield strength, elastic modulus, thermal conductivity and temperature coefficient of expansion. Beryllium copper's resistance to heat stress much stronger than tool steel, beryllium copper, from that point of life is impressive!

4 heat penetration rate: In addition to pull-temperature properties of lead, silicon powder mold thermal transmittance of the impact of plastic products is also important in the use of beryllium copper mold, you can eliminate the traces of overheating, if the heat penetration is low, contact with the mold wall temperature of the remote region will be higher, this would increase the mold temperature, in extreme cases can cause changes in the temperature region from one end of the plastic shrink marks extended to the other side of the heat trace products .

5 excellent surface quality: Beryllium copper is very suitable for surface finishing, nickel powder electroplating process can be, and very good adhesion properties, beryllium copper polishing is also very easy.

In addition, we talk about beryllium copper repair issues;

Beryllium copper welding repairs can be more easily achieved, but higher purity, which welding position, electrode and inert gases have special requirements, if the welding chamber wall thickness greater than 3MM, first preheat the workpiece to be 200
, toxic fumes generated by welding, so to timely evacuation of the smoke, for manual metal arc welding, welding of aluminum and copper materials are generally two kinds of elements, welding head can be used for tungsten inert gas welding process; You can also use metal wire moldings, usually using the AC tungsten inert gas welding process to do, this method can get a better welding effect and can make a good slug and substrate together, rather than adding additional penetrant. Attention is to be mentioned here - not again after the repair parts for hardening heat treatment and solution treatment. Source:www.mhcmp.com