• How to Find a Good Mold Maker in China During COVID-19?

    As COVID-19 pandemic continues to impact every part of our lives, the usual routes of travelling to China and visiting tooling shops are not accessible during this time of social distancing..Meanwhile, the number of mold makers in China grows exponentially every year. Now you can use the internet to search for the right molding company,but the stream of websites will be overwhelming for you to narrow down. How can you separate the reliable ones from those who are not up to the standard? These are the things you need to consider when you’re looking for a good mold maker in China. Check if mold makers offerPrototyping Services A good mold maker respects your idea and turns it into reality. Request prototypes to test your product’s feasibility or if you just want to see how the part will look. Prototyping is a way of making a finished product without building a tool by means of CNC machining ,3D printing or…

    Mold making May 31, 2021
  •  Guidelines on Insert Molding

    What is Insert Molding? Insert molding is a process of fabricating a finished part by applying a metal part into  moltenres in a mold. As compared to installing inserts into a plastic molded part in a post-molding process, the use of molded-in inserts eliminates the need for secondary installation of the inserts and thereby reduces costs. The mold temperature of INSERT MOLDING process is 65 -120 cels degree, and the material temperature is 260-320 cels degrees. Of course, different raw material ratios have different temperature ranges requirment and the resin producer will provide upper and lower limit temperature with the datasheet.   The upper limit temperature indicates the temperature at which the material begins to carbonize and decompose, while the lower limit temperature indicates the temperature at which the material begins to flow.On one hand, if the molten temperature is lower than the lower limit, the liquidity of the material is insufficient, and the insufficient plasticity of the molding screw can easily break the molding…

    Uncategorized January 9, 2020
  • How to define number of cavities in a plastic injection mold?

    When it comes to cavity number for a plastic injection mold, there is a lot to be considered by injection molder though usually the number of cavities is decided by the customer.  Please note the following:   The most important thing to consider is the size of the part and how complext. Does the part have a lot of slides,lifters, core pulls etc. Size of press that the mold is going to run in, how many tons in the press rated for, what’s the platen size, and what’s the shot size. What is total quantity of the part? all you must consider delivery time on the parts. If you have a tight just in time delivery schedule that will also determine the amount of cavities needed to support the timing. What is the target cycle time? How is the resin going to be distributed within the mold? surface runner, insulated…

    Mold making January 7, 2020
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