Plastic extrusion moulding, such as UPVC (Rigid Polyvinyl Chloride) profile or pipe product moulding, is mainly formed through the compounding of PVC resin and related additives, extrusion moulding, shaping, traction, and cutting. Among them, raw materials, formula equipment and operating processes are the main factors of plastic extrusion moulding, directly affecting the quality and output
During the production and operation of the plastic granulator, it must strictly implement according to the standards to extend its service life. How can the plastic granulator be used for a long time? Never use low-quality recycled materials with metal impurities or silt. Do not place metal objects that may fall near the feed inlet.
The extrusion process of PVC wood plastic is generally influenced by the factors of forming temperature, screw speed, metering feeding speed, traction speed, working pressure of extruder, exhaust gas, and vacuum cooling. However, the extrusion process is related to the formulation system, extruder structure and performance, product shape, mold design, product quality requirements, and public
Correct and reasonable use of PVC pipe extruder machine can give full play to the machine’s efficiency, maintain good working conditions, and extend the machine’s service life. The use of PVC pipe extruder machine includes a series of links such as machine installation, adjustment, test run, operation, maintenance and repair. Its use has the typical
1. Production Of Disposable Lunch Boxes With Degradable Materials 1. Fully biodegradable material lunch box: using PLA+PBS+biomass/minerals and other modified materials can produce a high temperature-resistant fully biodegradable material lunch box. There are two process methods: Two-step method: The raw materials are firstly filled with modified pellets, then extruded and thermoformed, using an ordinary single-screw
Preparatory steps before starting the sheet extrusion line Pre-dry the pellets of the extruded profile and further dry if necessary. Check whether the components, water, and air systems are in a standard, safe and reliable state. The parts that need lubrication should have sufficient lubricating oil. The running part should regularly fille with lubricating oil.
Blow Molding Machine丨Working Principle, Process Flow and Common Problems and Solutions in the Blow Molding Process
The principle of the bottle blowing machine The blowing process of the bottle blowing machine is divided into two parts. 1. Warm-up An infrared high-temperature lamp irradiates the preform to heat and soften the preform. To maintain the shape of the bottle mouth, the preform mouth does not need to be heated, so a particular
The density, hardness, and gloss of the plastic can be reduced or increased by appropriate methods to reduce or increase the plastic’s initial relative density, increase the hardness or increase the flexibility, and change the gloss to meet the needs of different applications. 1. How to reduce the density of plastic? Reducing plastic density refers
The extruder is an essential piece of equipment for plastic molding processing and pelletizing. The extruder’s everyday use can give full play to the machine’s efficiency and maintain an excellent working condition. It must carefully keep unremittingly to extend the service life of the appliance. The extruder’s primary failure is abnormal noise and abnormal vibration
During the pipe extrusion process, gas needs to vent from the melt. If these gases cannot discharge in time, defects such as pores, bubbles, and surface dullness may appear on the surface or inside the pipe products, seriously affecting the physical and mechanical properties, chemical properties, and electrical properties pipe. There are 1 to 2
A spinning machine is a machine that makes a fiber-forming polymer solution or melts from filaments. According to different fiber spinning methods, spinning machines are divided into three types: wet spinning machine, melt spinning machine, and dry spinning machine. Wet spinning machine Suitable for spinning viscose fiber, acrylic fiber, nylon, etc. The main feature is
In the plastic pipe production line, the operator’s unskilled technology and the machine operation will cause the plastic pipe to appear rough on the outer surface, jitter ring inside, uneven wall thickness, insufficient roundness and so on. Therefore, timely adjustment of plastic pipes’ production process and troubleshooting of the plastic pipe production line can improve
PE breathable membrane is a new type of waterproof polymer material. From the manufacturing process, the technical requirements are much higher than those of general waterproof materials. Simultaneously, from the quality point of view, the breathable membrane also has the functionality that other waterproof materials do not have features. PE breathable film is a new
The production process of meltblown non-woven fabrics is to use high-speed hot air to draw the thin stream of polymer melt extruded from the orifice of the die, thereby forming ultra-fine fibers and condensing on the net curtain or roller, and relying on Bonds itself to become a non-woven fabric. Comparison of meltblown fiber and
In order to further deepen school-enterprise cooperation and promote school-enterprise talent training. On November 6, 2020, Shanghai Jwell Machinery Manufacturing Co., Ltd. and Jiangsu Agriculture and Forestry Vocational Technical College successfully held the opening ceremony of the 2020 “Jwell Class” in the lecture hall of the school’s R&D building. Jian Zuping, President of Jiangsu Agriculture