The meaning of injection molding in professional rubber mold
Causes of die casting mold damage: in die casting production
Causes of die casting mold damage: in die casting production, mold damage is the most common way is crack, crack.Stress is the main cause of mold damage.Thermal, mechanical, chemical and operational shocks are all sources of stress, including mechanical stress and thermal stress. Stress occurs when: Rubber mold manufacturer
In the professional rubber mold processing process
1. Quality problem of blank casting.Some molds produce only a few hundred pieces before the cracks appear, and the cracks develop quickly.It is possible that the casting only ensures the appearance of the scale, and the steel dendritic crystal, dopant carbide, shrinkage, bubbles and other loose defects along the processing method is extended, forming a streamline, this streamline on the future quenching deformation, cracking, use of the process of embrittlement, failure tendency has a great impact.
2. The cutting stress occurred during the final machining such as turning, milling and planing, which can be eliminated by central annealing.
3. Grinding stress, friction heat, softening layer and decarburization layer occurred during grinding of hardened steel, which reduced thermal fatigue strength and simply caused thermal crack and early crack.After finishing grinding, h13 steel can be heated to 510-570℃, and the stress relief annealing can be carried out every 25mm of thickness.
4, edm stress.On the surface of the mold, a white bright layer of enriched electrode elements and dielectric elements occurs, which is hard and brittle. This layer will have cracks and stresses.High frequency should be selected in edm to minimize the white bright layer, it is necessary to polish the method to remove, and tempering treatment, tempering at three tempering temperature.
Improper thermal treatment in the process of professional rubber mold disposal will lead to mold cracking and premature waste, especially only choose the quenching, not quenching, nitriding technology for the appearance, in the die casting thousands of times will appear the appearance of cracking and cracking.The stress occurred during the quenching of steel is the superposition result of the thermal stress during the cooling process and the stress during the phase transition.
Professional rubber mold die casting production process 1, mold temperature mold should be preheated to a certain temperature before the production, or when the high temperature liquid metal filling occurs cold, resulting in increased temperature gradient inside and outside the mold layer, forming thermal stress, mold appearance crack, and even crack.In the production process, the mold temperature is constantly rising, when the mold temperature is overheated, the simple occurrence of adhesive mold, moving parts failure and mold appearance damage.Cooling temperature control system should be set to ensure that the working temperature of the mold is within a certain range.
Causes of die casting mold damage: in die casting production, mold damage is the most common way is crack, crack.Stress is the main cause of mold damage.Thermal, mechanical, chemical and operational shocks are all sources of stress, including mechanical stress and thermal stress. Stress occurs when: Rubber mold manufacturer
In the professional rubber mold processing process
1. Quality problem of blank casting.Some molds produce only a few hundred pieces before the cracks appear, and the cracks develop quickly.It is possible that the casting only ensures the appearance of the scale, and the steel dendritic crystal, dopant carbide, shrinkage, bubbles and other loose defects along the processing method is extended, forming a streamline, this streamline on the future quenching deformation, cracking, use of the process of embrittlement, failure tendency has a great impact.
2. The cutting stress occurred during the final machining such as turning, milling and planing, which can be eliminated by central annealing.
3. Grinding stress, friction heat, softening layer and decarburization layer occurred during grinding of hardened steel, which reduced thermal fatigue strength and simply caused thermal crack and early crack.After finishing grinding, h13 steel can be heated to 510-570℃, and the stress relief annealing can be carried out every 25mm of thickness.
4, edm stress.On the surface of the mold, a white bright layer of enriched electrode elements and dielectric elements occurs, which is hard and brittle. This layer will have cracks and stresses.High frequency should be selected in edm to minimize the white bright layer, it is necessary to polish the method to remove, and tempering treatment, tempering at three tempering temperature.
Improper thermal treatment in the process of professional rubber mold disposal will lead to mold cracking and premature waste, especially only choose the quenching, not quenching, nitriding technology for the appearance, in the die casting thousands of times will appear the appearance of cracking and cracking.The stress occurred during the quenching of steel is the superposition result of the thermal stress during the cooling process and the stress during the phase transition.
Professional rubber mold die casting production process 1, mold temperature mold should be preheated to a certain temperature before the production, or when the high temperature liquid metal filling occurs cold, resulting in increased temperature gradient inside and outside the mold layer, forming thermal stress, mold appearance crack, and even crack.In the production process, the mold temperature is constantly rising, when the mold temperature is overheated, the simple occurrence of adhesive mold, moving parts failure and mold appearance damage.Cooling temperature control system should be set to ensure that the working temperature of the mold is within a certain range.
