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Mould processing - changshu What's the cause of the effect double color mould cooling rate
by：CSSSLD
2021-01-23
What affect the double color mould cooling rate
double color mould injection molding processing, how to determine the cooling time, not only relates to the quality of the products, but also affect the cost of production and products. From the injection mold cavity plastic melt convey the necessary quantity of heat, make its from melt to solid, to take out from the mold and not the starting point of the deformation is considered. Therefore, correctly estimate the cooldown also became the first injection tooling should determine the main technological parameters. Influence the cause of the double color mould cooling rate is about what? A, mould materials and their cooling way. When it comes to mould material, including mold core, mold material and the die set has much effect on the cooling rate. The higher the heat transfer coefficient, double color mould material per unit time transfer heat from the plastic and the effect is better, cooling time is shorter. Second, the plastic products design. Mainly plastic products wall thickness. The greater the thickness of double color mould products, and its cooling time is longer. Three, choice of plastic. Here refers to refers to the plastic will be the direction of heat from the hot to cold place conduction velocity measurement. Plastic heat conduction coefficient is higher, on behalf of the heat transfer effect is better, or plastic heat low, temperature change easily, so easy to heat dissipation, the heat transfer effect is better, the required cooling time is shorter. Four, cooling water pipe configuration mode. Cooling water pipe near the cavity, the greater the diameter, the number is, the more the cooling effect is better also, cooling time is shorter, coolant flow rate. The cooling water flow rate, the greater the effect of the cooling water to take away heat convection way is, the better. Fifth, the nature of the cooling fluid. Cooling fluid viscosity and thermal conductivity coefficient can also affect the heat conduction effect of double color mould injection. Cooling fluid viscosity is lower, the higher the heat transfer coefficient, the lower the temperature, the cooling effect is better.
what two-color injection molding technology advantage
as people for the pursuit of product appearance and the increase of market demand, double color products increasingly favored by merchants, with the double color mould injection molding process is also known by more people, but, what are the advantages for double color injection molding process believe that many people are not very clear, today small make up will give you specific description. Compared to conventional injection molding technology, the double color injection molding technology advantage lies in: 1, standing in the perspective of environmental protection, double color mould the core of the product can use recycling secondary material. 2, double color injection mould core material can use low viscosity of the material to reduce the injection pressure. 3, double color injection mold using low quality of core materials to reduce costs. 4, according to the use of different features, such as the cortex thickness unit is expected to use the soft material, core core use hard material or material can use foamed plastics to reduce weight. 5, double color mould of the cortex and core material cooperation can reduce residual stress and improve the mechanical strength moulded or product surface properties. 6, cortex or core material can be used is expensive and special surface properties, such as preventing electromagnetic interference and high conductivity materials in order to improve product performance.
double color mould injection molding processing, how to determine the cooling time, not only relates to the quality of the products, but also affect the cost of production and products. From the injection mold cavity plastic melt convey the necessary quantity of heat, make its from melt to solid, to take out from the mold and not the starting point of the deformation is considered. Therefore, correctly estimate the cooldown also became the first injection tooling should determine the main technological parameters. Influence the cause of the double color mould cooling rate is about what? A, mould materials and their cooling way. When it comes to mould material, including mold core, mold material and the die set has much effect on the cooling rate. The higher the heat transfer coefficient, double color mould material per unit time transfer heat from the plastic and the effect is better, cooling time is shorter. Second, the plastic products design. Mainly plastic products wall thickness. The greater the thickness of double color mould products, and its cooling time is longer. Three, choice of plastic. Here refers to refers to the plastic will be the direction of heat from the hot to cold place conduction velocity measurement. Plastic heat conduction coefficient is higher, on behalf of the heat transfer effect is better, or plastic heat low, temperature change easily, so easy to heat dissipation, the heat transfer effect is better, the required cooling time is shorter. Four, cooling water pipe configuration mode. Cooling water pipe near the cavity, the greater the diameter, the number is, the more the cooling effect is better also, cooling time is shorter, coolant flow rate. The cooling water flow rate, the greater the effect of the cooling water to take away heat convection way is, the better. Fifth, the nature of the cooling fluid. Cooling fluid viscosity and thermal conductivity coefficient can also affect the heat conduction effect of double color mould injection. Cooling fluid viscosity is lower, the higher the heat transfer coefficient, the lower the temperature, the cooling effect is better.
what two-color injection molding technology advantage
as people for the pursuit of product appearance and the increase of market demand, double color products increasingly favored by merchants, with the double color mould injection molding process is also known by more people, but, what are the advantages for double color injection molding process believe that many people are not very clear, today small make up will give you specific description. Compared to conventional injection molding technology, the double color injection molding technology advantage lies in: 1, standing in the perspective of environmental protection, double color mould the core of the product can use recycling secondary material. 2, double color injection mould core material can use low viscosity of the material to reduce the injection pressure. 3, double color injection mold using low quality of core materials to reduce costs. 4, according to the use of different features, such as the cortex thickness unit is expected to use the soft material, core core use hard material or material can use foamed plastics to reduce weight. 5, double color mould of the cortex and core material cooperation can reduce residual stress and improve the mechanical strength moulded or product surface properties. 6, cortex or core material can be used is expensive and special surface properties, such as preventing electromagnetic interference and high conductivity materials in order to improve product performance.
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