CNC Machining Blog|PTJ Hardware, Inc.

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  • What Is PBT Material?

    Pbt material is an engineering material with excellent performance, with excellent toughness and fatigue resistance, good heat resistance, weather resistance, good electrical properties, and low water absorption. The modified pbt material is to be modified by strengthening and flame retardant, so as to improve its heat resistance, flame retardancy, dimensional stability and modulus, and is used in automobiles, electronic and electrical industries.

    2021-10-09

  • Key technologies for the synthesis and application of functional hyperbranched polymers

    The wind power industry is a basic industry for the country's sustainable, green and healthy development, and high temperature resistant insulating resin is the key material to ensure the long-term stable operation of wind turbines

    2021-10-16

  • How can ABS injection molded parts increase brightness?

    The main reasons for poor gloss of plastic parts are: mold, injection molding process, raw materials, etc. PTJ elaborates on this issue as follows, please correct me if it is wrong!

    2021-10-16

  • The Analysis Of Shrinkage Depression Cause

    Molded parts of semi-crystalline plastic materials have a high shrinkage rate, which makes the dent problem more serious; the molding shrinkage of non-crystalline materials is lower, which will minimize the dent to the greatest extent; the shrinkage rate of filled and maintained reinforced materials Lower, the possibility of dents is less.

    2021-10-16

  • Thermoplastic pipe extrusion coating molding

    In the extrusion molding of traditional thermoplastic pipes, the melt flow direction is parallel to the pipe axis, and the plastic macromolecular chains in the pipe wall are oriented parallel to the pipe axis. The strength of the pipe wall is greater in the axial direction than in the circumferential direction. The circumferential direction is twice the axial direction, so the axial and circumferential strength is contrary to the axial and circumferential stress.

    2021-10-23

  • Reinforced flame-retardant PBT material: high glow wire, high CTI

    PBT material is an engineering material with excellent performance, with excellent toughness and fatigue resistance, good heat resistance, good weather resistance, good electrical properties, and low water absorption. Reinforcement and flame-retardant modification can significantly improve its heat resistance, modulus, dimensional stability and flame retardancy.

    2021-10-16

  • Thermoplastics List For Injection Molding

    There are many types of thermoplastics, even if the same type is different due to the different proportions of resin molecules and additives, its use and process characteristics are also different. In addition, in order to change the characteristics of the original varieties, various chemical methods such as copolymerization and crosslinking are commonly used to introduce a certain percentage of other monomers or polymers into the original resin structure to change the original resin structure into a new one. Modified products with improved physical properties and processability.

    2021-10-02

  • How are 3D printed aircraft components made

    Most 3D printed parts of airplanes are related to guiding the air to some extent and have complex internal geometries such as blades, air ducts and shutters. Since the guided air usually exceeds 260°C, surface-based design methods are crucial.

    2021-10-29

  • Troubleshoot The Sawing Problem As Follows

    Through a comprehensive understanding of sawing mechanics and the specific problems that arise when sawing tubular workpieces, many problems in pipe and pipe cutting can be solved. Eliminating sawing problems helps in three areas: increasing the cutting rate, extending the life of the saw blade, and optimizing cutting quality.

    2021-10-29

  • What should I do if a weld line appears during injection molding?

    Welded wire or braided wire is probably the most common and difficult to eliminate injection defect. They occur when the melt flow front collides in the cavity. Poor braid will not only cause appearance defects, but also greatly weaken the structural integrity of the part. The strength of the braided wire may be only 20% of the nominal strength of the part, or it may be 100% of the nominal strength of the part, depending on many variables.

    2021-10-29

  • Proper mold cleaning may be an effective way to solve burrs

    The flash of a part can occur due to a variety of reasons, from process or material changes to tooling failures. Along the parting line of the mold or wherever the metal forms the boundary of the part, there will be burrs on the edge of the part. Tools are often the culprit, so identifying the type of flash being acquired and when it occurred can point you in the right direction.

    2021-10-29

  • How to choose suitable surface treatment products?

    Choosing the right product for grinding and surface treatment applications can be annoying, because many types of abrasive products can be used for work, and each product has many different sizes, textures, and styles.

    2021-10-29



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