News
more+- Professor Chen Erfan, a leader of our company, was invited to attend the inauguration ceremony for the new location of Shenyang Zhilang Technology Co., Ltd. and visited its research achievements and new products.
- The 4th Annual Meeting of the Special Committee and the 3rd New Materials Science & Technology Conference Held in Hangzhou
- Professor Chen, a leader of our company, participated in the Standardization Technical Committee of the Chemical Industry and Engineering Society of China.
- Warm Congratulations on Our Company Being Awarded the Certificate of High-Tech Enterprise!
- Chairman Chen Erfan Participated in Liaoning International Rubber Technology Exchange Festival as a Specially Invited Expert.
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more+Plugging airbag/Inflatable pipe plugs
★ Main Features & Technical Specifications：
Main material: EPDM; inner core: butyl rubber.
Service life: more than 50 years.
Eco-friendly & food-grade hygienic standard.
Air/water tightness: maintains working pressure for 1 year without leakage.
Safety & reliability: waterproofing and pressure relief functions unaffected under Magnitude 7 earthquake; working pressure: 1.2 MPa; automatic pressure relief via magnetic valve in emergency.
Friction coefficient / skid resistance: dry 0.5~0.8, wet 0.25~0.75.
Easy operation: deflation time < 30 seconds; floats up naturally without obstruction or blockage.
★ Adopted Standards:：
Service Life Evaluation: ISO 11346:1997 Rubber, vulcanized or thermplastic — Estimation of lifetime and maximum temperature of use from an Arrhenius plot
Food Hygiene Test: GB 4806.1-1994 Hygienic Standard for Rubber Products for Food Use
Air Tightness Test: GB/T 11194-2004 Test Method for Air Tightness of Aircraft Tubeless Tires
Working and Bursting Pressure: ISO 1402:2009 Rubber and plastics hoses and hose assemblies — Hydrostatic testing
Friction Coefficient Test: HG/T 2729-1995 Rubber, vulcanized — Determination of friction coefficient of thin sheets — Sliding method
Mechanical Properties of Materials: ISO 37:2005 Rubber, vulcanized or thermplastic — Determination of tensile stress-strain properties
Aging Resistance: ASTM D 518:1999 Standard Test Method for Rubber Deterioration — Surface Cracking
