• Injection mold wants to do well: must grasp five injection schedules Sep 30, 2020
    On the premise of ensuring product quality, the shorter the cycle time is, the higher the cycle time. The cycle time includes the following items: injection time, pressure holding time, melting time, cooling time, ejection time, mold clamping low pressure time, and even more The time factor is also related to mold opening and clamping, and the speed of ejection. 1. Injection time Including the hol...
  • Fire protector PP material Oct 14, 2020
    Flame retardant and fireproof PP plastic, why does the sticking phenomenon occur during injection molding? After high-temperature dissolution, high-speed and high-pressure filling in the cavity during the injection, the addition of flame retardant and auxiliary in the flame-retardant fire-retardant PP,  if the mold has a large amount of material and the exhaust is insufficient, The gas will a...
  • Injection mold gate type and selection-6 Oct 14, 2020
    2.2.8 Ring gate The annular gate is arranged on the outside concentric with the cylindrical cavity, that is, gates are arranged around the cavity, so it can be called an outer annular gate, and its gate position corresponds exactly to the inner disc gate . Suitable for thin-walled and long-tube plastic parts. Because the melt of the plastic part evenly enters the cavity around the core, the mold i...
  • How to develop the mold and do a good job of controlling, so that the mold can achieve perfect? Apr 06, 2021
    The development progress of the mould plays a very key role in the progress of the whole project and is an important part of the production preparation of the OEMs. Next, from the release of body data to the final acceptance of the mold, we will talk about the mold development process and schedule control. 1. Released the number of body craft The body design department releases the product di...
  • Common problems and solutions for air bubbles in injection molded parts Apr 07, 2021
    The thick part of the plastic product processed by injection molding is easy to produce bubbles, and the reason for the formation is exactly the same as that of the depression of the molded product. The cavity formed in the thick wall of the shaped product is a bubble. According to the cause of the bubbles, the countermeasures taken are: when the product wall thickness is large, the cooling rate o...
  • How to prevent the mold can not be opened? Apr 16, 2021
    In order to prevent the mold can not be opened, the following preventive measures should be taken: 1. Calculate the clamping force correctly, not the bigger the better. 2. Do not keep the high pressure mode locking state when the machine is shut down. 3. In case of power failure in the mode locking state, it is necessary to deal with it in time. It is necessary to loosen the crosshead nut after a ...
  • What are the conditions for AS injection molding? Apr 16, 2021
    What are the conditions for injection molding? 1. Pay attention to the design of the formed products if there is the possibility of pot cracking.For special cases, use more than 1° of retraction incline, and pay attention to the mold should not have low sag part. 2. The forming shrinkage rate is about 0.45%, the heating temperature is 170~310℃, the hot air dryer is used, the drying time is 2~3 hou...
  • Heat treatment characteristics of common carburized steel plastic mould Apr 23, 2021
    Heat treatment characteristics of common carburized steel plastic mould 1. For the plastic mold with high hardness, high wear resistance and high toughness requirements, we should choose carburizing steel to manufacture, and the carburizing, quenching and low temperature tempering as the final heat treatment. 2. The requirements of the carburizing layer, the thickness of the general carburizing la...
1 ... 18 19 20 21 22 23 24

A total of 24 pages

click here to leave a message

Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

Home

Services

about

contact