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How the screw barrel should be used innovatively
After the screw barrel is used for a period of time, the screw edge and the nitriding layer of the barrel (when making a new screw, both the screw and barrel will stop the nitriding heat treatment, so there will be about 30-60 silk oxide layers on the surface 2) when worn in both directions, the gap between the two sides increases, causing partial backflow of the plastic, and the…
What details should be paid attention to for the three small pieces of screw
The three small pieces of screw head play the functions of sealing, mixing, plasticizing and other functions in the entire screw group. It is a relatively important part. The quality problems of many plastic products are closely related to the three small pieces of screw head. There are often many three Failure to deal with the details of small parts has greatly increased the scrap rate of plastic products, and…
How to solve the problem of bending deformation in the extrusion process of products?
The bending deformation of PVC profile is a common problem in the extrusion process. The main reasons are: uneven discharge of the die; insufficient cooling of the material during cooling and shaping, and inconsistent shrinkage; equipment and other factors.It is recommended to solve from the following aspects:1. Ensure the concentricity and levelness of the entire extruder line, and correct the concentricity and levelness of the extruder, die, shaping die, water…
What are the cleaning methods for the extruder screw?
The working condition of the extruder that needs to clean the screw is generally to change the color or restart after the machine has black spots. There are two common methods: one is to wash with raw materials or nozzle materials, and the other is to directly pull the screw for polishing and cleaning.The method of drawing the screw affects the precision of the equipment. Pulling the screw for a…
How to reduce the failure rate of injection molding machine?
When the injection molding machine is working, the injection molding machine parts are like the wheels of a motor vehicle. As long as they are started, they will be subjected to pressure, impact, friction, and extrusion. For the same tire, driving on a flat road and a skilled driver can often prolong the service life of the tire.dAnd when driving on uneven roads with lots of sand and gravel, coupled…
What are the points to note when using the screw barrel of an injection molding machine?
The screw barrel of the injection molding machine often sticks to the material, which not only affects the progress but also affects the quality of the product, and it is also troublesome in the process of troubleshooting. Different plastics are due to their melting speed, heat absorbed during melting, melt viscosity, and water absorption The difference in characteristics such as rate, thermal stability, etc., is very different for the shape…
Warmly welcome customers from Europe to visit our factory
Warmly welcome customers from Europe to visit our factory.This is our long-term cooperation customer, the first time to visit our factory.It is a great honor for us to have the opportunity to host you. I hope you can have an in-depth understanding of our corporate culture, technical strength and production process. We have arranged a series of colorful activities such as technical exchanges, factory visits, business negotiations and cultural exchanges.…
How to determine if a tapered twin-screw screw is installed correctly?
To determine if a conical twin-screw extruder is worn, the key is to observe four major signals: decreased output, deteriorated melt quality, abnormal energy consumption, and increased clearance. These are often early signs of wear and can be detected by operators even before the equipment is shut down. Wear usually doesn’t happen suddenly but is a slow, cumulative process. The first and most obvious signal is decreased output: even at…
Feeding, feeding extrusion screw
Description application area:The building materials, chemical, metallurgical and other industries are used to transport powdered and granular materials (such as coal powder, grain),As the core conveying component in equipment such as injection molding machines and screw conveyors. Performance parameters: The outer diameter, inner diameter, and lead determine the feeding rate, which needs to be matched with the production demand;The filling degree needs to be verified in high-speed scenarios (materials with…
Company introduction video
WE ARE JED BRAND Zhoushan jed Machinery Co., Ltd. is a professional enterprise that produces plastic and rubber mechanical screw barrels.Professional processing and design experience, providing processes such as nitriding, chrome plating, stainless steel, bimetallic, surface spraying, etc. according to different needs, especially high-capacity single screw film tubes, has won more customers. In addition, we design and manufacture products based on the drawings provided by customers and existing parts.Zhoushan jed…
Maintenance methods for conical twin-screw extruders and barrels
Maintenance of the conical twin-screw extruder and barrel is crucial for ensuring long-term stable operation and extending the lifespan of core components. Scientific daily and periodic maintenance not only reduces downtime but also effectively lowers production costs. I. Daily Cleaning and Inspection Clean Machine Surfaces and Internal Residues After each daily shutdown, promptly clean resin residue from the barrel, screw, and nozzles to prevent carbonization and its impact on the…
The role of the extruder screw in the extruder
The Extruder screw serves as the “heart” of the extruder, playing a pivotal role in the extrusion process. It performs three primary functions essential for effective material processing: These functions significantly influence product quality and processing efficiency, making the extruder screw indispensable in the extrusion industry. Primary Functions of the Extruder Screw The extruder screw plays a vital role in the extrusion process, performing several key functions that ensure efficient material…