Better Touch Better Business
Contact Sales at CSSSLD.
Latest products
Injection mold hot runner
by：CSSSLD
2021-01-23
Article/VIP:
the cold runner injection molding processing refers to the part between the mold and product gate entrance. Plastic by injection pressure in the flow passage and its heat flow state and flow channel as part of the molding material, but it does not belong to the product.
hot runner: as a common part of the injection mould system, is by heating method to ensure the runner and gate plastic molten state. Due to the port nearby or center is equipped with heating bars and heating circle, from injection molding machine nozzle exit to the gate of the whole passage is in high temperature condition, keep the flow of plastic melt, generally do not need to open the port after downtime remove condensate, and then only when the boot heat flow to the required temperature can be. Hot runner technology, therefore, are sometimes referred to as heat collector tube system, or called no runner molding.
hot runner technology, the advantages and disadvantages of
conventional injection molding often has the following disadvantages: 1, molding difficult; 2, large thin wall parts of deformation; 3, sprue waste of raw materials; 4, multimode cavity mould have different quality of injection molded parts. The emergence of hot runner technology, gives these problems is the perfect solution, generally speaking, the hot runner has the following advantages: 1, save raw materials, reduce. 2, shorten the molding cycle, improve the efficiency of the machine. 3, improve the product surface quality and mechanical properties. 4, don't have to use three plate mold can use point gate. 5, can be economically to side gate forming a single products. 6, improve the degree of automation. 7, available needle valve type gate control gate to freeze. 8, multimode cavity mould quality of injection molded parts. 9, improve the aesthetic surface of injection molding products.
every technology has its own disadvantages exist, hot runner technology is no exception: 1, the die structure is complex, high cost, the high cost of maintenance. 2, the boot process need a period of time will be stable, offer more waste. 3, leaks of the melt, and heating element failure, larger influence on product quality and production progress. Above the third weakness, especially need to pay attention to, by purchasing good quality of the heating element, but heat flow and the nozzle and careful maintenance, when using can reduce the occurrence of these adverse conditions.
in the injection molding processing, cooperate with the mould of hot flow path, and plays a very important role. For example, in the injection molding production of ultra-thin ( Such as mobile phone battery cover) , through the use of hot runner can easily produce high precision, high quality products; For illiquid injection molding raw material, through the use of hot runner can obviously improve the liquidity of raw material, ensure injection production smoothly; For some large injection molded parts, such as car bumpers and door plank, TV shell, air conditioners shell, etc. , through the use of hot runner, make very difficult molding become relatively simple.
for plastics processors, as long as there is a certain batch of injection molding production, using hot runner is very economic. This is because the hot runner to help businesses destroyed nozzle in the injection molding production. In most cases, shuikou impossible to recycle. Sometimes, the weight of the nozzle and the weight of the product is almost the same, if the traditional way of shuikou injection, means that the waste of raw materials and products used by as much as raw material. Extrapolate that using hot runner, can save 30% ~ 50% of raw materials. In addition, the hot runner also helps reduce mould wear, prolong the life of the mold. In general, the service life of hot runner mould is fine runner mold 2 times.
according to different system of pouring system type of mould can be divided into three categories:
1, gate mould of hot flow path: the runner and gate on the parting line, together with the product in the mould stripping, the simplest design, easy processing, low cost, so more people using gate system operation.
2, fine runner mould of hot flow path, the runner and gate is not the parting line, generally directly on the product, so to design a set of shuikou parting line, design is relatively complex, processing more difficult, often depending on the product requirements to choose fine nozzle system.
3, hot runner mold: this kind of mould structure with fine nozzle is approximately the same, the difference is the largest port in one or more heat flow but and constant temperature heat pumping mouth, no cold feeding demoulding, runner and gate directly on the product, so the port don't need mold release, also known as no runner system, this system can save raw materials, applicable to the raw material is more expensive, high requirement of products, design and processing difficulties, mould cost is higher.
hot runner technology is a hot direction of the development of the plastic injection molding process. With the increasingly popularization and application of hot runner technology, hot runner mold in plastic mould proportion will gradually increase.
more wonderful sharing: injection of enterprise management, directly click.
or copy the link: http://www. csssld。 cn//html/2016/Trade_0125/127。 HTML
nantong on plastic products factory's official website: http://www. csssld。 Cn / /
source network trimmer/injection molding processing and VIP
the cold runner injection molding processing refers to the part between the mold and product gate entrance. Plastic by injection pressure in the flow passage and its heat flow state and flow channel as part of the molding material, but it does not belong to the product.
hot runner: as a common part of the injection mould system, is by heating method to ensure the runner and gate plastic molten state. Due to the port nearby or center is equipped with heating bars and heating circle, from injection molding machine nozzle exit to the gate of the whole passage is in high temperature condition, keep the flow of plastic melt, generally do not need to open the port after downtime remove condensate, and then only when the boot heat flow to the required temperature can be. Hot runner technology, therefore, are sometimes referred to as heat collector tube system, or called no runner molding.
hot runner technology, the advantages and disadvantages of
conventional injection molding often has the following disadvantages: 1, molding difficult; 2, large thin wall parts of deformation; 3, sprue waste of raw materials; 4, multimode cavity mould have different quality of injection molded parts. The emergence of hot runner technology, gives these problems is the perfect solution, generally speaking, the hot runner has the following advantages: 1, save raw materials, reduce. 2, shorten the molding cycle, improve the efficiency of the machine. 3, improve the product surface quality and mechanical properties. 4, don't have to use three plate mold can use point gate. 5, can be economically to side gate forming a single products. 6, improve the degree of automation. 7, available needle valve type gate control gate to freeze. 8, multimode cavity mould quality of injection molded parts. 9, improve the aesthetic surface of injection molding products.
every technology has its own disadvantages exist, hot runner technology is no exception: 1, the die structure is complex, high cost, the high cost of maintenance. 2, the boot process need a period of time will be stable, offer more waste. 3, leaks of the melt, and heating element failure, larger influence on product quality and production progress. Above the third weakness, especially need to pay attention to, by purchasing good quality of the heating element, but heat flow and the nozzle and careful maintenance, when using can reduce the occurrence of these adverse conditions.
in the injection molding processing, cooperate with the mould of hot flow path, and plays a very important role. For example, in the injection molding production of ultra-thin ( Such as mobile phone battery cover) , through the use of hot runner can easily produce high precision, high quality products; For illiquid injection molding raw material, through the use of hot runner can obviously improve the liquidity of raw material, ensure injection production smoothly; For some large injection molded parts, such as car bumpers and door plank, TV shell, air conditioners shell, etc. , through the use of hot runner, make very difficult molding become relatively simple.
for plastics processors, as long as there is a certain batch of injection molding production, using hot runner is very economic. This is because the hot runner to help businesses destroyed nozzle in the injection molding production. In most cases, shuikou impossible to recycle. Sometimes, the weight of the nozzle and the weight of the product is almost the same, if the traditional way of shuikou injection, means that the waste of raw materials and products used by as much as raw material. Extrapolate that using hot runner, can save 30% ~ 50% of raw materials. In addition, the hot runner also helps reduce mould wear, prolong the life of the mold. In general, the service life of hot runner mould is fine runner mold 2 times.
according to different system of pouring system type of mould can be divided into three categories:
1, gate mould of hot flow path: the runner and gate on the parting line, together with the product in the mould stripping, the simplest design, easy processing, low cost, so more people using gate system operation.
2, fine runner mould of hot flow path, the runner and gate is not the parting line, generally directly on the product, so to design a set of shuikou parting line, design is relatively complex, processing more difficult, often depending on the product requirements to choose fine nozzle system.
3, hot runner mold: this kind of mould structure with fine nozzle is approximately the same, the difference is the largest port in one or more heat flow but and constant temperature heat pumping mouth, no cold feeding demoulding, runner and gate directly on the product, so the port don't need mold release, also known as no runner system, this system can save raw materials, applicable to the raw material is more expensive, high requirement of products, design and processing difficulties, mould cost is higher.
hot runner technology is a hot direction of the development of the plastic injection molding process. With the increasingly popularization and application of hot runner technology, hot runner mold in plastic mould proportion will gradually increase.
more wonderful sharing: injection of enterprise management, directly click.
or copy the link: http://www. csssld。 cn//html/2016/Trade_0125/127。 HTML
nantong on plastic products factory's official website: http://www. csssld。 Cn / /
source network trimmer/injection molding processing and VIP
Custom message
