Home » Knowledge
Knowledge

Управление Низкой Температурой Плавления в Процессе Двойного Шнекового Экструзии: Причины, Последств
В процессе экструзии на двухшнековом экструдере управление температурой плавления имеет решающее значение для обеспечения стабильного и качественного компаундирования. Низкие температуры плавления могут привести к ряду негативных последствий, таких как неполное плавление полимеров, ухудшение свойств конечного

Формула Цветного Мастербэтча
Как правило, содержание цветного мастербэтча в смоле составляет 2-5%. При правильном смешивании и добавлении содержание связующей смолы в конечной смеси составит 1-3% или более. Это делает его самым большим по объему добавлением среди всех добавок.

Continuous fiber reinforced high performance thermoplastic resin-based composites
Continuous fiber-reinforced high-performance thermoplastic composites have gradually attracted the attention of the composite industry due to their unique advantages such as light weight, high strength, good impact resistance, short molding cycle, secondary molding, and recyclable

When Making Black Masterbatch, How To Solve The Problem Of Uneven Dispersion Of Carbon Black?
1. Case study When a manufacturer makes black masterbatch, carbon black 40%, using EVA wax as a dispersant, some are very brittle when pulling strips, and some are even unbreakable, the judgment is that the carbon

This is the right way to clean the plastic extruder, do you know?
Today, with advanced technology, cleaning plastic extruders is not a big problem, but how to properly and economically clean plastic extruders and keep the screw and barrel from being damaged is a problem. Today we

Carbon Black Masterbatch
Selection of carbon black Carbon black is the most cheap, high-quality and excellent ultraviolet stabilizer. If carbon black particle size is very small (20 nm), the carbon black concentration is generally set at 2.5%+0.5%. According

Extruder screw often wears out? There are these main reasons!
Screw extruder is the core equipment of plastic forming and blending modification. In the actual blending modification production process, the screws of the extruder are exposed to harsh high pressure and high temperature environment, and

Resin Identification Code — Lets You Know Which Plastics Are Safe
Plastic materials are divided into 1-7 according to the recyclable grade. The higher the number, the better the recyclable grade, not the safer the material. Each plastic container has a number at the bottom (it

How does CaCo3 powder increase the value of plastic products?
The price of ordinary CaCo3 powder is much cheaper than plastic, the addition of CaCo3 powder will reduce the cost of plastic products. The CaCo3 powder is called filler. At present, The main purpose of adding CaCo3

Common Phenomena About Poor Plasticization Of The Extruder
The mechanical principle of the extruder is to add water or appropriate liquid into the raw powder and stir it continuously, and then extrude the well-mixed material from the porous head or metal mesh with high

Biodegradable Plastics Extruder
In recent years, with the implementation of the «plastic ban», biodegradable plastics have gradually entered the public’s vision, which is of vital significance for the development of environmental protection packaging industry. At present, there are

Plastic Recycling Granulation — Plastic Pellet Making Machine
The choice of extruder depends mainly on what material the plastic needs to be recycled by the customer and what output is required per hour. if the customer produces PP recycling and granulation, the required output is 100~150kg/h, the raw material particles are large but the plasticization requirements are not high, the CSE-65 single screw extruder is the most suitable.

Caco3 Filler Masterbatch Extruder
The machine model is mainly determined according to the customer’s output. The L/D of the twin screw extruder is the higher the better. It is usually required to be more than 40 with a high cost-performance ratio. Generally, the 52mm, 65mm, and 75mm twin screw extruders are more popular with customers. The triple screw extruders of 52mm, 65mm and 75mm have a higher output and better mixing effect than the twin screw extruders of the same model.

Overview of 3D printing materials and their applications — 3D printing metal materials
3D printing metal materials are mainly in the form of powder and wire. Powder materials are the most commonly used materials, which can be used in a variety of 3D printing processes such as Selective

Successful Delivery of CHT65D Twin Screw Extruder with Underwater Pelletizing Line
The underwater pelletizing line is generally composed of start-up valve, die head, pelletizer, water bypass system and pipe fittings, centrifugal dehydrator and control system. Underwater pelletizing line is a kind of «Hot-face cutting». When uniform high-temperature

Overview of 3D printing materials and their applications — 3D printing polymer materials
3D printing technology is an intelligent manufacturing technology that originated in the 1980s and integrates machinery, computer, numerical control and materials. The basic principle of this technology is that according to the two-dimensional section information

Operation and Precautions of Twin Screw Extruder
Twin screw extruder is used to extrude molten plastic through a fixed shape extrusion mouth under the action of the screw, and cut it after being water-cooling or air-cooling. It is used in the filling, blending,

How to choose PVC cable raw materials?
PVC has been widely used in the production of cable materials because of its excellent corrosion resistance, electrical insulation, especially its flame resistance and self extinguishing. PVC cable material is pellet prepared by mixing, kneading and

Filler Masterbatch Machine
Filling masterbatch refers to the mixing and mixing of various additives, fillers and a small amount of carrier resin for the convenience of operation in the process of plastic processing and molding. The design of filling masterbatch formula has only fixed design concept and purpose, and there is no fixed formula. Different formulas of different equipment and processing environment of powder need to be adjusted properly.

Color Masterbatch Extruder
Color masterbatch is a special colorant for new polymer materials. Different types of color masterbatch have different uses. However, color masterbatch is basically used for coloring products such as plastics, pipes, packaging, electrical enclosures, films, moisturizing materials, clothing fibers, and improving unique properties.

Continuous fiber reinforced thermoplastic resin 3D printing filament
After the continuous fiber bundle (carbon fiber or glass fiber) is unwound by the unwinding device, it is pre tensioned and pre dispersed by the pre tensioning roller, and then the upper and lower surfaces

PVC cable material
PVC cable material is a pellet prepared by taking polyvinyl chloride as the base resin, adding plasticizers such as stabilizer, dioctyl phthalate, diisopropyl phthalate, dioctyl terephthalate, trioctyl trimethylene terephthalate, and inorganic fillers such as calcium

Causes and solutions of template plugging
The template of the extruder is composed of a die plate body with a discharge hole and a thermal insulation layer, and is fixed to the die head with a threaded rod. Only when the

How to choose high performance twin screw extruder
Twin screw extruder is an important equipment in plastic processing machinery. It is not only suitable for extrusion molding and mixing processing of polymer materials, but also has been widely used in food, feed, electrode,

What should we pay attention to in the daily maintenance of twin-screw extruder?
Daily maintenance: workers need to carry out daily maintenance on a regular basis, which is generally completed when starting the machine, and does not occupy the running time of the equipment. The key lies in

Key Points to pay attention to when selecting plastic extruder
According to the different production materials, product specifications and material consumption of customers, it is necessary to select the diameter of the screw first, and then further select the specification and model of the extruder.

Basic principle of screw combination for co rotating twin screw extruder
Basic principle of screw combination For a twin-screw extruder, the screw is mainly divided into feeding section, melting section, mixing section, exhaust section and homogenization section. Screw elements mainly include conveying, melting, shearing, material mixing,

Causes of “material emission from vacuum port”
In the process of extrusion production, gases need to be discharged from the melt. If these gases cannot be discharged, defects such as pores, bubbles and dull surface may appear on the surface or inside

Characteristics of co-rotating Twin screw extruder
Characteristics of intermeshing co-rotating twin screw extruder There are many kinds of twin screw extruders, of which the intermeshing co-rotating twin screw extruder is a kind of production and processing equipment widely used in the plastic industry.

How to disassemble and assemble extruder screw?
Nanjing Cowin screw is designed according to the building block principle, and the combination can be changed according to the operation needs. When disassembling the screw, try to drain all the materials of the main

TPU Twin Screw Extruder
TPU modified granulation process:Twin screw extruder — screen change — water-cooling strand pelletizing granulation auxiliary machine — water trough — dryer — pelletizer — vibrating screen — siloTwin screw extruder — melt pump — screen change — Underwater granulation auxiliary machine — underwater pelletizer — water circulation system — centrifugal dehydrator — vibrating screen — silo

PVC Compound Machine
PVC generally needs to be modified and granulated first. The basic principle of modification is to endow materials with functions or improve some properties through additives. PVC granulation generally uses a two-stage machine, the upper stage adopts a twin-screw extruder, and the lower stage adopts a single screw extruder.

ABS engineering plastics — increasingly close to our life
ABS (Acrylonitrile butadiene Styrene copolymers) chemical name: acrylonitrile butadiene styrene copolymer. It is a kind of alloy plastic made of the above three materials according to different proportions. It has many characteristics, such as high

CHT75 parallel co-rotating twin screw extruder delivered by Cowin
CHT75 parallel co-rotating twin screw extruder delivered by Cowin. In June 2022, Cowin delivered the CHT75B twin screw extruder and CHT75D twin screw extruder water-cooling strand pelletizing line with a capacity of 800kg/hr to a foreign client.

TPE extruder
For TPE as an elastomer, the most difficult process is how to granulate. In the selection of extruder, the extruder model of 52mm-95mm is usually selected, L/D is 48:1, the screw material is W6Mo5Cr4V2, and the barrel is block type, 45# steel + overall sleeve structure.

Bio based TPU
The production and process of bio based TPU are becoming more and more mature. Twin screw extruder and underwater pelletizing unit can provide customers with efficient production environment and reliable production output.

Analysis on vacuum exhaust of twin screw extruder
This paper introduces the reasons why the twin-screw extruder needs vacuum exhaust, the composition of the vacuum system and the operation steps for the vacuum exhaust of the twin-screw extruder.

PET Sheet Extrusion Line
The Characteristics of Cowin’s PET extruder machine High vacuum degree. High torque twin screw extruder. Unique screw element and combination design.Low energy consumption. High precision pressure closed-loop control system, automatic control.Multi-layer extrusion, stable and reliable. Recommended

Thermoset Plastic Extrusion Line
high-speed mixer feeder twin screw extruder machine cooling air pulverizer cyclone separator fine powder recycling tower Muffler The excellent mixing capability, self wiping characteristics, and accurate temperature control of the co-rotating twin-screw extruder enable thorough

TPV twin screw extruder
TPV twin screw extruder, Twin Screw Extruder Underwater Pelletizing Line. Introduction to TPV processing technology and buying guide.

CHT52B parallel co-rotating twin screw extruder was sent to Bolivia
The following is the whole process of sending the parallel co-rotating twin-screw extruder to Bolivia. Cowin’s core concept is win-win, we have been adhering to and will always maintain this concept!

Effect of Calcium Carbonate on Filling Masterbatch
Calcium carbonate affects the quality of the filler master batch by factors such as calcium content and particle size distribution of calcium carbonate.

Barrel structure and material of parallel co rotating twin screw extruder
This article introduces the common barrel structure and material of the parallel and co-rotating twin-screw extruder.

Cleaning Method of Plastic Extruder
Many customers do not know how to clean the plastic extruder after it has been used for a period of time, which takes a lot of time. If it is not handled properly, it will

LFT (Long-Fiber Reinforce Thermoplastic)
This article describes the development history of LFT, its processing technology, and its advantages compared to other composite materials and metals.

PLA Degradable Sheet Production Line Delivered by Cowin Extrusion
Customer Buys Cowin Extruder Again. In April 2022, Cowin delivered a PLA degradable sheet production line with a capacity of 500kg/hr to a foreign client, This customer purchased COWIN’s granulation production line in 2021.

How to find the best China twin screw extruder manufacturer?
This blog post explains how to find the best twin screw extruder manufacturer in China, by researching the best manufacturers, contacting the manufacturer of your choice, and more.

Difference between filling masterbatch and color masterbatch
Color masterbatch has gradually occupied a dominant position. It can be divided into common color masterbatch and filling masterbatch.

How to improve the wear resistance of extruder barrel
The most important thing about the wear-resistant treatment of the extruder barrel is our standardized operation of the machine.

How to Improve the Extruding Efficiency and Quality of Screw Extruder?
The article mainly writes the selection factors of extruder equipment, the skills to improve extrusion efficiency, etc.

Wear and maintenance of screw
The screw has an important influence on the plasticization of materials, product quality and production efficiency. This article mainly writes the damage reasons and maintenance of the extruder screw.

Cowin Extrusion at CHINAPLAS 2022 (April 25 — April 28)
Dear Sirs/Madam: We hereby sincerely invite you and your company representatives to visit our booth at National Exhibition and Convention Center (Shanghai), PR China from April 25th to 28th 2022. We’re one of the manufacturers

COWIN EXTRUSION Attended CHINAPLAS 2022
CHINAPLAS 2022
COWIN EXTRUSION
TIME: April 25-28, 2022
Booth No.: No.B67, Hall 6.1
Tel/Fax: 0086-25-52717523 Website: http://cowinextrusion.ru

All about Plastic Extrusion and Helpful Tips for Buying Extruder Machinery
Plastic extrusion is a kind of continuous process for high volume manufacturing, where a certain thermoplastic material can be made in the form of pellets, powder, or granulates. Thereafter, they are homogeneously melted and moved

Recycled PP/PE Compounding Granulation Line
In recent years, as a general resin with high cost performance and wide application, Recycled PP/PE Compounding has been widely used in many fields of industry, agriculture, construction and daily life, and has become a

Extruder Machine 101
This blog introduces Extruder Machine, including extruder introduction, types and working principle of twin-screw extruder, etc.

PLA Degradable Sheet Production Line
This blog mainly introduces the PLA degradable sheet production line, including the introduction of PLA, its process flow, basic parameters, and advantages.

Study on preparation of carbon fiber reinforced polycarbonate composite by twin screw extruder
Carbon fiber reinforced polycarbonate composite by twin screw extruder

Top 10 Twin Screw Extruder Manufacturers
This blog mainly introduces the top 10 twin screw extruder manufacturers and the global distribution of extruder manufacturers.

The conveying principle of twin-screw extruders
This blog mainly introduces the conveying mechanism of some twin-screw extruders.

Five Reasons Why People Like Triple Screw Extruder
Riple Screw Extruder has five advantages such as high cutting efficiency and good plasticizing effect.

Biodegradable plastic-Developments and Challenges under «Plastic bans»
Biodegradable plastics are polymer materials that can be degraded by microorganisms after being discarded.

The Applications of Screw Extruder
Industrial applications of screw extruders, including but not limited to processing industry, food industry, etc.

5 minutes to understand the extruder
The extruder is a kind of plastic processing machinery, and it is the core part of the plastic extrusion production line.

International Plastics Expo 2020 & The 22nd China Plastics Expo
Nov 4th -7th 2020, Nanjing Cowin Extrusion Machinery attended the 22nd China Plastic Expo in Yuyao with many domestic and international partners.

2021 Chinaplas
“ CHINAPLAS 2021 was proudly concluded on April 16 with a total of 152,134 visitors (149,771 local and 2,363 overseas).

2020 Plastivision India
Plastivision India will be taking place during 16-20 Jan 2020, which is the largest event of plastic industry held in Mumbai India once every three years.

2019 Chinaplas
Nanjing Cowin Extrusion Machinery Co., Ltd requests the pleasure of your company at Hall 2.2 Booth No.S61 at Chinaplas 2019 trade fair.