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The distinction between the precision injection molding and injection molding
by：CSSSLD
2021-02-03
Wen injection tooling/VIP
& other; Precision injection molding & throughout; The concept, main is different from & other Conventional injection molding & throughout; , with the rapid development of polymer materials and microelectronics technology, highly integrated electronic circuit, make industrial equipment parts gradually for the development of high-performance, high precision, lightweight, miniaturization and miniaturization.
precision injection molding, strictly speaking, refers to by injection molding machine equipment to produce the dimension precision of plastic products, can reach 0. 01 mm below, usually at 0. 01 ~ 0. 001 mm between a way of injection molding production. This precision plastic parts for compliance with the requirement of high precision, and at the same time have good machinery, mechanical properties and dimensional stability, etc, in machinery, electronics, instrumentation, communications, automotive and aerospace instrumentation and other industries fields, replaced the part precision metal parts and has been widely applied.
by the definition of precision injection molding, precision plastic pieces of the size of the tolerance range is very narrow. In fact, the plastic molding industry recognized, when the size of the plastic parts of tolerance in 0. Below 1 mm, the size or product plus or minus tolerance in 0. Below 1 mm, precision molding, can be called the dimensional tolerance of parts reach micron grade, may call it super precision injection molding. In terms of relative precision injection molding, ordinary injection molding parts size tolerance usually at 0. More than 1 mm, the size of parts tolerance range is relatively wide, and with the increase of volume or weight parts, parts of size tolerance will increase. It is worth mentioning, because the nature of the material itself and the processing method is different, can't get the precision of plastic parts and precision metal parts. Precision plastic products of the highest accuracy grade is 3, namely dimensional tolerance can reach 0. Below 001 mm, and the size of metal parts can be divided into ten level 4, machining accuracy grade nine.
the characteristics of precision injection molding is: the size of the injection molded parts require high precision, small tolerance.
to achieve the requirements of precision injection molding processing conditions must achieve is:
1, mould materials, better rigidity, the cavity size precision, smooth finish and higher positioning accuracy between the template.
2, precision injection molding machine must be used.
3, to adopt the precision injection molding process.
4, want to choose the material is suitable for precision injection molding process.
most commonly used precision injection molding material has the following kinds: POM, POMCF ( Carbon fiber) POMGF ( Glass fiber) 、PA FRPA66 ( Enhanced PA) , PC, etc.
precision injection process to ensure the dimension accuracy of injection molded parts is the important way to control the shrinkage of injection molded parts, including: thermal contraction, disguised contraction of molded parts, orientation and compressed contraction and elastic recovery.
the characteristics of common injection molding is:
accuracy is not high, the size of injection molded parts are typically can be assembled into standard, requirements for the appearance of the injection molded parts is relatively high, when necessary, may use the secondary processing ( Such as fuel injection) To improve the appearance of defects. Ordinary injection molding don't need to use special precision injection molding machine, also do not need to specially designated materials, general common thermoplastics can be used to production. So ordinary injection molding technology has been widely used in modern plastic industry.
to plastic products and high precision, high performance requirements of precision injection molding technology is growing momentum, deepening of precision injection molding principle understanding is the basis of precision injection molding technology. As the new material, new technology and new equipment appeared, especially the computer is widely used in plastic processing, created good conditions for precision injection technology. For as long as reasonable use of these technologies, we will be able to produce sophisticated products.
more wonderful sharing: comprehensive description of thermal conductive polymer materials, click directly.
or copy the link: http://www. csssld。 cn//html/2015/Trade_1204/79。 HTML
nantong on plastic products factory's official website: http://www. csssld。 Cn / /
source network trimmer/injection molding processing and VIP
& other; Precision injection molding & throughout; The concept, main is different from & other Conventional injection molding & throughout; , with the rapid development of polymer materials and microelectronics technology, highly integrated electronic circuit, make industrial equipment parts gradually for the development of high-performance, high precision, lightweight, miniaturization and miniaturization.
precision injection molding, strictly speaking, refers to by injection molding machine equipment to produce the dimension precision of plastic products, can reach 0. 01 mm below, usually at 0. 01 ~ 0. 001 mm between a way of injection molding production. This precision plastic parts for compliance with the requirement of high precision, and at the same time have good machinery, mechanical properties and dimensional stability, etc, in machinery, electronics, instrumentation, communications, automotive and aerospace instrumentation and other industries fields, replaced the part precision metal parts and has been widely applied.
by the definition of precision injection molding, precision plastic pieces of the size of the tolerance range is very narrow. In fact, the plastic molding industry recognized, when the size of the plastic parts of tolerance in 0. Below 1 mm, the size or product plus or minus tolerance in 0. Below 1 mm, precision molding, can be called the dimensional tolerance of parts reach micron grade, may call it super precision injection molding. In terms of relative precision injection molding, ordinary injection molding parts size tolerance usually at 0. More than 1 mm, the size of parts tolerance range is relatively wide, and with the increase of volume or weight parts, parts of size tolerance will increase. It is worth mentioning, because the nature of the material itself and the processing method is different, can't get the precision of plastic parts and precision metal parts. Precision plastic products of the highest accuracy grade is 3, namely dimensional tolerance can reach 0. Below 001 mm, and the size of metal parts can be divided into ten level 4, machining accuracy grade nine.
the characteristics of precision injection molding is: the size of the injection molded parts require high precision, small tolerance.
to achieve the requirements of precision injection molding processing conditions must achieve is:
1, mould materials, better rigidity, the cavity size precision, smooth finish and higher positioning accuracy between the template.
2, precision injection molding machine must be used.
3, to adopt the precision injection molding process.
4, want to choose the material is suitable for precision injection molding process.
most commonly used precision injection molding material has the following kinds: POM, POMCF ( Carbon fiber) POMGF ( Glass fiber) 、PA FRPA66 ( Enhanced PA) , PC, etc.
precision injection process to ensure the dimension accuracy of injection molded parts is the important way to control the shrinkage of injection molded parts, including: thermal contraction, disguised contraction of molded parts, orientation and compressed contraction and elastic recovery.
the characteristics of common injection molding is:
accuracy is not high, the size of injection molded parts are typically can be assembled into standard, requirements for the appearance of the injection molded parts is relatively high, when necessary, may use the secondary processing ( Such as fuel injection) To improve the appearance of defects. Ordinary injection molding don't need to use special precision injection molding machine, also do not need to specially designated materials, general common thermoplastics can be used to production. So ordinary injection molding technology has been widely used in modern plastic industry.
to plastic products and high precision, high performance requirements of precision injection molding technology is growing momentum, deepening of precision injection molding principle understanding is the basis of precision injection molding technology. As the new material, new technology and new equipment appeared, especially the computer is widely used in plastic processing, created good conditions for precision injection technology. For as long as reasonable use of these technologies, we will be able to produce sophisticated products.
more wonderful sharing: comprehensive description of thermal conductive polymer materials, click directly.
or copy the link: http://www. csssld。 cn//html/2015/Trade_1204/79。 HTML
nantong on plastic products factory's official website: http://www. csssld。 Cn / /
source network trimmer/injection molding processing and VIP
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