The Japan Steel Works, Ltd. List of Products and Services

Dispersion of masterbatch carbon black into the base polymer is relatively easy, but for this type of compound, minimizing equipment configuration to reduce costs is the key point. To achieve this, it is necessary to monitor the dispersion progress of the material during the mixing process in the extruder. This document introduces the dilution process of carbon black masterbatch using a twin-screw extruder. We encourage you to read it. [Contents] ■ Experimental equipment and conditions ■ Results, discussion, and conclusion *For more details, please refer to the PDF document or feel free to contact us.

In the manufacturing process of wood products, a large amount of fine wood powder is generated. There is a growing movement to reuse this wood powder by compounding it with plastic to create new wood products. Due to various constraints in wood powder compounding, a twin-screw extruder with a deep groove screw like the 'TEX' and advanced kneading technology are required. This document introduces wood powder compounding using our twin-screw extruder 'TEX'. We invite you to read it. [Contents] ■ Features of TEX kneading technology - Conveying wood powder - Dispersion of wood powder - Treatment of wood vinegar gas - Pelletizing system ■ Development of wood powder compounding *For more details, please refer to the PDF document or feel free to contact us.

Recycled paper is mainly referred to as recycled paper in the context of old paper recycling, but there are other uses for old paper, such as cushioning materials and packaging made by blending old paper with plastics, as well as various containers. The blending of old paper and plastics is one of the technologies that should be established urgently from an environmental protection perspective. In the recycling of old paper using an extruder, the various forms of old paper and their low bulk density result in poor feedability into the extruder. Additionally, since paper is fibrous, it tends to tangle easily, making it a significant challenge to uniformly disperse it into the molten plastics. We have achieved the blending and pelletizing of old paper and plastics using our twin-screw extruder 'TEX'. 【Mixing Technology】 ■ Stability of raw material feed ■ Dispersion of old paper ■ Low-temperature extrusion ■ Devolatilization *For more details, please refer to the PDF materials or feel free to contact us.

Our company uses a twin-screw extruder called 'TEX' for one method of removing volatile components from polymers, known as de-volatilization extrusion. To meet the increasingly stringent requirements for reducing residual volatile content, we have developed a water-assisted de-volatilization extrusion technology. By injecting water as a de-volatilization aid, we can enhance the de-volatilization performance to levels (residual volatile content of several + ppm or several ppm) that were not achievable with conventional methods. This technology involves a kneading section that combines a sealing ring and a kneading disk upstream of a vacuum vent, allowing for water injection under high resin pressure. **Advantages of using water as a de-volatilization aid:** - Easily obtainable - Inexpensive - High latent heat - Does not react with most resins - Easy to separate *For more details, please refer to the PDF document or feel free to contact us.*

We have developed a recycling technology for cross-linked plastics and cross-linked rubber, which previously had no treatment methods other than energy recovery through incineration or landfill, using "TEX." By equipping the system with a screen changer at the front, we can filter out debris that mixes with the crushed material. Additionally, the filter can be easily replaced during operation, allowing for continuous operation. This technology effectively performs cross-link cutting of cross-linked plastics such as wire insulation materials and cross-linked rubber (tires, weather strips, etc.). 【Features】 - Effectively performs cross-link cutting of cross-linked plastics such as wire insulation materials. - Effectively performs cross-link cutting of cross-linked rubber (tires, weather strips, etc.). - Enables continuous production of high-quality recycled products. - Allows for stable extrusion by precisely controlling the resin temperature, which is crucial for cross-link cutting. - All by-products can be collected through venting or slitting. *For more details, please refer to the PDF document or feel free to contact us.

We are pleased to introduce the successful development of a continuous manufacturing process in the cosmetics field through the application of the high-speed twin-screw extruder 'TEX'. The manufacturing method involves the quantitative supply of main raw materials and various additives such as UV absorbers from a hopper, followed by the quantitative supply of fats from the middle of the cylinder via a pump for kneading and dispersion. By kneading at high speed, we obtain an emulsion-like product with a fine and uniform kneading dispersion state. Previously, production was done using batch mixers, but the application of the high-speed twin-screw extruder has enabled improvements in productivity through continuous processing and stabilization of product properties. 【Features】 ■ Fine and uniform kneading dispersion state of emulsion-like products is achieved through high-speed kneading. ■ Improved productivity through continuous processing. ■ Stabilization of product properties is realized. *For more details, please refer to the PDF document or feel free to contact us.

The production of polymers such as rubber copolymers is generally carried out through methods like emulsion polymerization or solution polymerization. Traditionally, methods using a single-axis pre-dehydrator and an expansion extruder for drying were common, but we have now established a rationalization technology that processes everything with a single twin-screw extruder (TEX), which we would like to introduce. By using a twin-screw intermeshing type screw, efficient transportation and extrusion of polymers are possible. Additionally, issues such as poor feed of raw materials, slit leakage, and surging instability are resolved. 【Features】 ■ Stable operation ■ Space-saving ■ Energy-saving ■ Prevention of polymer quality degradation *For more details, please refer to the PDF materials or feel free to contact us.

This document introduces the "mixing and dispersion technology utilizing screw tip clearance." We investigated the effects of chip clearance on dispersion performance, resin temperature, and specific energy. Experimental results are presented using figures and graphs, and we also explain other special mixing cylinders, NIC. We encourage you to read it. [Contents] ■ Overview ■ Experimental Results ■ Special Mixing Cylinder NIC ■ Features of NIC *For more details, please refer to the PDF document or feel free to contact us.

This document introduces a technology for directly removing high concentrations of volatile components from polymers using a twin-screw extruder "TEX." Our company has established a volatilization technology for monomers and solvents contained in various polymers through numerous verification experiments. We have clearly presented the main technologies for high concentration volatilization, as well as the equipment configuration, in diagrams and tables, so please take a moment to read through it. [Contents] ■ Overview ■ Application Examples ■ Volatilization Technology ■ Equipment Configuration *For more details, please refer to the PDF document or feel free to contact us.

Automotive bumpers are currently using grades based on PP resin in many vehicle models from the perspective of improving productivity and recyclability. Since bumper grades require significant improvements in bending modulus and impact strength, the raw material formulation has become complex, increasing the difficulty of compounding. This document introduces the compounding technology of the NEW bumper grade "TEX." We will continue to propose technological developments for further quality improvement and enhanced capabilities in compact machines. [Contents] ■ Equipment configuration ■ Evaluation of dispersion through examples ■ Features *For more details, please refer to the PDF document or feel free to contact us.

Typically, power transmission cables are insulated with super clean cross-linked polyethylene around the conductor, but in ultra-high voltage transmission (about 500,000 volts), charge concentration occurs in the insulating part, leading to the problem of cable failure during transmission. To prevent this, a semiconductive material that slightly discharges electricity inside and outside the insulator is used as a cushioning layer. This document introduces a technology for continuous mixing of the semiconductive layer using a biaxial kneading extruder. [Contents] ■ Featured Technology - Adoption of a special kneading cylinder NIC - Optimization of chip clearance for the kneading screw - Control of cylinder temperature - Self-cleaning properties *For more details, please refer to the PDF document or feel free to contact us.

This is an introduction to our continuous chemical recycling technology for plastics, utilizing our twin-screw extruder 'TEX' and associated equipment. The raw materials are continuously decomposed through shear heating by the extruder's screw and heat transfer from the cylinder heater. By condensing and recovering the decomposition gas into liquid monomers downstream of the extruder, we can efficiently remove decomposition gases and residues, resulting in high-quality monomers with harmful substances removed. 【Features】 ■ Efficient continuous production of high-quality recycled plastics ■ Capable of recycling various materials other than acrylic ■ Stable supply of raw materials in various shapes, such as film scraps and crushed pieces, to the extruder ■ Specification considerations using test equipment are also possible *For more details, please refer to the PDF document. Feel free to contact us with any inquiries.

"TEX-FAN" is a mixing simulation software that allows for easy analysis of pressure distribution, temperature distribution, filling rate, residence time, and melt state along the screw axis of a twin-screw extruder in a short amount of time. It can utilize screw shape data from the software "TEX-GEO," which manages screw shapes used in production lines or laboratories as a database. By inputting the various physical properties of the resin and the operating conditions of the extruder, anyone can easily perform simulations. 【Features】 ■ Shortens material development and prototype testing periods ■ Effective for streamlining operations during quality adjustments on production lines ■ Utilizes screw shape data created with "TEX-GEO" ■ Easy simulation for anyone ■ Enhances efficiency in theoretical analysis and development period reduction in process development and new material development *For more details, please refer to the PDF document or feel free to contact us.