Material Knowledge in Rubber Products
Feb 04,2026
The commonly used natural rubbers for conveyor belts include: National Standard No. 1, National Standard No. 2, and Imported Grade 3.
Performance characteristics: NR exhibits high elasticity at room temperature, but gradually softens upon heating. It begins to flow at 130–140°C and becomes a highly viscous fluid above 150–160°C. Decomposition starts at 200°C and accelerates rapidly at 270°C. At -70 to -72°C, however, it turns brittle and reverts to its normal state after baking.
Jan 31,2026
Dalian Bohai Rubber & Plastic Co., Ltd. is a rubber products enterprise integrating R&D, production, and sales. We specialize in the customization and production of compounded rubber (also known as “rubber compounds”). Based on different customer requirements, we use raw rubber combined with compounding agents and additives, processed through a closed-milling system to create semi-finished materials that can be directly used for vulcanization and molding. These materials find extensive applications in industries such as automotive manufacturing (sealing strips, vibration-damping pads, fuel hoses) and mechanical engineering (conveyor belts, sealing rings, cushioning components).
Jan 31,2026
Currently, the rubber industry is facing multiple challenges, including volatile raw material prices, increasingly stringent environmental regulations, intensifying homogeneous competition, and rising demands for more sophisticated quality control. How to simultaneously achieve improvements in product quality, cost reduction, efficiency enhancement, and green transformation has become the key to breaking through these industry bottlenecks. In recent years, an increasing number of rubber enterprises have proactively adopted the PDCA cycle management model (Plan, Do, Check, Act), deeply integrating it into the entire value chain—from R&D and production to quality control and equipment maintenance—thereby overcoming challenges through “closed-loop management and spiral improvement.”
Visit SAIC Volkswagen R&D Center and Procurement Center on January 22nd
Jan 29,2026
Firstly, we had a technical exchange with SAIC Volkswagen R&D Center on the sealing of body sheet metal holes. At present, with the rapid development of new energy vehicles, how to ensure passenger safety in the event of battery thermal runaway is a key development direction for major automakers. There is an urgent need for sheet metal hole seals under high temperature conditions. Dalian Bohai Rubber has many years of experience in developing rubber seals with temperature levels below 200 ℃, which can meet the sealing and flame retardant requirements of host factories at this temperature. SAIC Volkswagen stated that in the future, supplier recommendations can be made to jointly develop new material products to meet the increasing safety requirements.
Focusing our hearts and pooling our strengths—rehearsal site for the annual conference program
Jan 28,2026
As the annual meeting draws near, our rehearsal for the program has entered a critical phase.
Every loop of rhythmic listening and every repetition and refinement of each movement reflect our serious and responsible dedication.
“Seriousness” is our most fundamental respect for the stage—and it’s also a clear reflection of our work ethic.
The annual meeting is not just a joyful feast; it’s also a highlight moment that showcases our team spirit, talent, and cohesion. Every minute of brilliance on stage stems from tenfold, even a hundredfold, of effort put in behind the scenes. Our meticulous attention to detail, our precise grasp of rhythm, and our heartfelt emotional engagement—all these ultimately come together to create that dazzling moment of triumph.
Even a single small rehearsal for the annual meeting program underscores the consistent high standards we at Bohai Rubber uphold in our work.
This relentless pursuit of excellence not only ensures the stage performance’s powerful impact but also embodies the consistently serious and professional attitude that characterizes everyone at Bohai Rubber.
The Invisible Guardians: How Industrial Rubber Components Quietly Underpin Modern Manufacturing
Jan 28,2026
Step into any modern factory, and you’ll see metal machinery, electronic control systems, and automated processes—but you’ll rarely notice those unassuming rubber components. Yet it’s precisely these seemingly minor parts that play an indispensable role in industrial operations. As a specialized supplier of industrial rubber components, we deeply understand the value of these “invisible guardians.”
Manufacture a prototype of the new product
Jan 28,2026
Recently, the company has been steadily expanding its new business, and new customer orders have been pouring in one after another. To meet the needs of new clients such as Jianghuai, multiple departments—including technology, production management, quality control, and manufacturing—have joined forces. Even during weekends, employees have voluntarily given up their rest time to come to the company and carry out trial production of new products. Each department is acting with the highest standards, delivering high-quality products to our new customers and making their due contributions to the company’s sustained growth. We are confident that, under this positive atmosphere, the company will surely achieve continuous, rapid, and healthy development.
Jan 01,2026
As the new year dawns and auspicious energy fills our doors, with the arrival of 2026, Bohai has already weathered forty-two years of trials and tribulations and is now officially embarking on a new journey. At this moment of bidding farewell to the old and welcoming the new, I would like to extend my sincerest gratitude and warmest wishes to every member of the Bohai family!
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Contact Information
Address: No. 39-6-1, No. 2, Gangxing Street, Economic and Technological Development Zone, Dalian City, Liaoning Province
Telephone:0411-88035927
Fax:0411-88035927
Mailbox:liuchunhong@dlbhxs.com
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