作者: junhua

Junhua PEEK passed the national high-tech enterprise certification
Junhua PEEK passed the national high-tech enterprise certification

Recently, our company received a notice from the Wujin Science and Technology Bureau of Jiangsu Province: According to the relevant provisions of the “High-tech Enterprise Recognition Management Measures” and “High-tech Enterprise Recognition Management Guidelines” of the Ministry of Science and Technology, the Ministry of Finance, and the State Administration of Taxation, after successful application and review, Jiangsu Junhua Special Engineering Plastic Products Co., Ltd. was officially recognized as a high-tech enterprise. The high-tech enterprise certification is jointly established by the Ministry of Science and Technology, the Ministry of Finance, and the State Administration of Taxation. The purpose is to standardize and unify the national certification of enterprise qualifications. The certification threshold for high-tech enterprises is much higher than that of…

2016-09-01 | Company News, News | Tags:

Junhua PEEK PEEK passed the US FDA food grade certification test
Junhua PEEK PEEK passed the US FDA food grade certification test

On August 16, 2018, Junhua PEEK PEEK passed the food grade certification test of the U.S. Food and Drug Administration (FDA).   What is the FDA FDA is the abbreviation of the U.S. Food and Drug Administration. It is one of the executive agencies established by the U.S. government in the Health and Human Services and Public Health Stations. Internationally, FDA is recognized as the world’s food and drug administration agency. Many other countries promote and monitor the safety of their own products by seeking and accepting the help of FDA.   The high-performance plastic parts of PEEK polymers and their composite materials developed by our company have been widely used in food processing, pharmaceuticals, medical devices (non-implant grade) and…

2016-09-01 | Company News, News | Tags:

Celanese thermoplastic composite wire can replace metal materials

  Celanese Corp. and U.S. wire and cable maker Southwire Co. LLC have developed an overhead transmission line made of thermoplastic composites to replace traditional wires that use aluminum as conductors and are reinforced with steel. The transmission line, called C-7, uses a composite core of bundled strands made of Celstran long-glass fiber-reinforced thermoplastic combined with heat-resistant Fortron polyphenylene sulfide and is covered with a layer of PEEK (polyetheretherketone). The cable harness is housed in a sheath made of aluminum or aluminum-zirconium alloy. Celanese and Southwire Corp. introduced the lightweight composite wire earlier this year after seven years of development. Celanese demonstrated the application at the JEC Americas Composites Show in Atlanta in May. Benefits include reduced increase in sag…

2016-08-31 | Industry News, News | Tags:

PEEK’s high temperature resistance improves the performance of dental bite sticks
PEEK’s high temperature resistance improves the performance of dental bite sticks

When Dentronix, a subsidiary of the Swiss Coltene/Whaledent Group, was designing a new “heat-resistant” bite bar, it needed a material that could withstand the high temperatures of a dry heat sterilizer. The company chose PEEK, a high-performance polymer used in a variety of high-end medical applications, because of its good overall performance. Bite bars are orthodontic tools used to secure braces to teeth. The orthodontist places the braces on the patient’s teeth and then places the bite bar, which allows the metal insert to help the braces slide into the correct position when the patient bites down. Since bite bars mechanically secure braces to teeth, impact strength is important, and PEEK polymer meets the requirements for bite pressure. A requirement…

2016-08-31 | Industry News, News | Tags:

PEEK board and PEEK rod have the relevant characteristics and broad development prospects in the market
PEEK board and PEEK rod have the relevant characteristics and broad development prospects in the market

With the rapid development of science and technology economy, domestic industrialization has made great progress. The rise of various heavy industries and emerging industries has made the demand for materials more and more extensive, no longer limited to metal, steel, wood and other materials. Changzhou Junhua PEEK Co., Ltd. (website: http://en.junhuapeek.com) seized the opportunity under such a social situation and came into being. It is mainly engaged in the sales of special engineering plastics PEEK plates, PEEK rods and many other similar materials. The company seizes market opportunities and constantly adapts to market demand. In order to make everyone have a more comprehensive and thorough understanding of PEEK, the reporter interviewed Mr. Li, the person in charge of Changzhou Junhua…

2016-08-31 | Industry News, News | Tags:

Classification standards and testing methods for insulating, conductive and antistatic PEEK
Classification standards and testing methods for insulating, conductive and antistatic PEEK

Introduction to the classification standards and measurement methods of insulating, conductive and antistatic PEEK — Changzhou Junhua PEEK Co., Ltd.: Zhang Chengxiang and Tan Zongshang 1. Overview Pure PEEK is an insulator with outstanding high and low voltage resistance, and can maintain its electrical properties in a wide range of temperature and frequency. However, in special industries such as electronic semiconductors, static electricity accumulation generated during the production process can absorb dust, causing electronic devices to break down and damage, or even lead to major accidents such as explosions and fires. This requires that PEEK rollers, PEEK vacuum pen tips, etc. must not only have the advantages of high temperature resistance, wear resistance, and high strength, but also have anti-static…

2016-08-31 | Industry News, News | Tags:

Introduction to the application of PEEK high-performance polymer in gears
Introduction to the application of PEEK high-performance polymer in gears

The main trends in the industry are: improving performance and efficiency, reducing weight and miniaturization while reducing costs. In gear applications, engineers are looking for new materials to replace existing metal materials or to improve typical polymer material solutions to meet the high performance requirements of future systems. In recent years, PEEK high-performance polymer materials have been successfully used as an alternative material in a wide range of applications in multiple industries. In response to the continued development of this trend, Changzhou Junhua has sufficient resources to provide customers with direct assistance in processing, design and application development. Performance: Gears have to meet multiple complex requirements because different types of loads always occur simultaneously. The proper operation of gears depends…

2016-08-31 | Industry News, News | Tags:

High-quality PEEK thrust washers for demanding applications
High-quality PEEK thrust washers for demanding applications

Lighter weight, smaller size, more power, more functionality, better performance, longer life, higher energy efficiency, reduced CO2 emissions and lower overall costs – this is a major trend in today’s transmission manufacturing, just like in other areas such as automotive engineering. Thrust washers are an important part of the transmission. Since they separate the different gears, they are subject to large axial forces and extremely high friction loads. The compact design of the housing, high pressure (P) and high speed (V) increase the oil temperature. Wear-resistant materials such as polyimide (PI) and polyamide-imide (PAI) cannot meet these extremely demanding requirements. The high-performance polymer PEEK has a good performance in thrust washers and is therefore a mature alternative to PI, PAI…

2016-08-31 | Industry News, News | Tags:

Celanese thermoplastic composite wire can replace metal materials
Celanese thermoplastic composite wire can replace metal materials

Celanese thermoplastic composite wires can replace metal materials Celanese Corp. and US wire and cable manufacturer Southwire Co. LLC have developed an overhead transmission line made of thermoplastic composite materials to replace traditional wires with aluminum conductors and steel reinforcement. The transmission line, called C-7, uses a composite core of bundled strands made of Celstran long-glass fiber-reinforced thermoplastic combined with heat-resistant Fortron polyphenylene sulfide and is covered with a layer of PEEK (polyetheretherketone). The cable harness is housed in a sheath made of aluminum or aluminum-zirconium alloy. Celanese and Southwire Corp. introduced the lightweight composite wire earlier this year after seven years of development. Celanese demonstrated the application at the JEC Americas Composites Show in Atlanta in May. Benefits include…

2016-08-31 | Industry News, News | Tags:

PEEK characteristics and advantages

PEEK characteristics and advantages

2016-08-29 | Material Performance | Tags:

PEEK performance indicators
PEEK performance indicators

Main grades of PEEK and their typical performance indicators Item Test standards or instruments unit PEEK5600G PEEK5600GF30 PEEK5600CF30 PEEK5600LF30 Pure resin Contains 30% glass fiber Contains 30% carbon fiber Contains 30% (carbon fiber + graphite + PTFE ) Color － Original color, grayish yellow or black Original color, grayish yellow or black black black Actual density ISO 1183 g/cm3 1.3±0.02 1.5±0.02 1.4±0.02 1.43±0.02 Water absorption rate  (25 ℃ .24Hrs) ISO 62 % 0.15 0.11 0.06 0.06 Molding shrinkage ( 25-24 ℃) 3mm thickness, 170 ℃ flow direction 3mm, 170 ℃ ,  % 1.2 0.4 0.1 0.3 Perpendicular to the flow direction (larger after saturated crystallization) % 1.5 0.8 0.5 0.5 Melting point ISO 1133 ℃ 343 343 343 343 Continuous…

2016-08-29 | Material Performance | Tags:

PI performance index
PI performance index

2016-08-29 | Material Performance | Tags: