Why Guangzhou injection molding parts processing deformation
Speaking of plastic finished products friends are very familiar, we have a lot of plastic finished products around us, these products bring a lot of bento to our lives, in addition to our industrial manufacturing in life also appeared a lot of plastic finished products. Today's environment tends to be more and more demand for plastic finished products, so Changzhou plastic processing technology began to come out of our sight today, many people want to inquire about it but there is no channel, so this time we will briefly explain the related content to friends.
Plastic finished products are more and more widely used in our lives, what are the injection molding processing processes in Guangzhou? Plastic processing extrusion, injection molding, molding, rotational molding, casting, dipping and other molding processes, these molding processes are different materials and products specific selection.
1. Extrusion: The grades used for extrusion manufacturing generally have a melt index of less than 1 and MWD of medium width to width. During processing, low MI yields suitable melt strength. Wider MWD grades are more suitable for extrusion due to their higher manufacturing rates, lower die pressures and reduced melt breakage.
2.: The characteristic indicators of the grade, such as melt strength, ES-CR and toughness, are similar to the grades used for sheet and thermoforming applications, so similar grades are acceptable.
The scene of cracking on the outside or inside of the plastic part in order to permanently or repeatedly apply stress lower than the mechanical properties of the plastic is called stress cracking; The scene of complete splitting of the plastic part due to the stable load result of the affirmation at a specific temperature is called stress splitting; Cracks and splits caused by excessive exposure of certain thermoplastic period parts to higher temperatures are called thermal stress cracking. Jiangyin injection mold processing, so the demand in terms of temperature is well mastered.
Injection molding parts processing due to the improper activity of the melt in the mold cavity, resulting in the plastic parts table and the annual ring, spiral or cloud-like waveform rough disadvantages. Cracks in the surface of plastic processing parts and the resulting breakage. If the processed product is damaged, the product cannot be applied normally.
Injection molding processing is a general term for various processes that convert synthetic resin or plastic into plastic finished products, which are widely used in our lives. Nowadays, there are many people who buy waste plastics for processing. Buying used plastics not only saves resources, but also benefits the environment. Guangzhou plastic processing needs to be pre-disposed of, to classify, clean, crush and dry plastics. There are many varieties of waste plastic finished products, so we need to classify them according to the variety and shape of raw materials. After pre-treatment, it is the extrusion granulation process of waste plastic.