The "Vulcanization Insight" of Precision Testing: An Introduction to Computerized Zero-Rotor Vulcanometers

Sep 30,2025

The core equipment in the field of sample testing— the computerized rotorless vulcanometer. It’s like equipping the vulcanization process with a pair of "keen eyes," using innovative design and precise monitoring to completely transform the limitations of traditional testing methods.

Product knowledge

Rubber Compounding Process

Sep 24,2025

Mixing is a critical process in rubber product manufacturing, aimed at uniformly blending raw rubber with various compounding agents—such as fillers, vulcanizing agents, accelerators, and antioxidants—through mechanical shearing. This process produces a compounded rubber that meets specific performance requirements. The quality of the mixing process directly influences both the processing characteristics of the rubber compound and the final physical and mechanical properties of the finished product. This article provides a detailed introduction to the working principles and procedures of both internal mixers and open mills.

Product knowledge

Causes and Prevention of Rubber Product Blooming

Sep 24,2025

Scorching refers to the phenomenon where compounding agents in rubber products—such as sulfur, accelerators, antioxidants, plasticizers, zinc oxide, and others—exceed their solubility limit within the base rubber. Alternatively, these agents may migrate to the surface of the product over time due to mechanisms like migration or phase separation, gradually forming a white, frost-like deposit on the material's surface.

Product knowledge

Comprehensive control from raw materials to quality

Aug 28,2025

In the production management of rubber product enterprises, the mixing process is an indispensable part. The mixing process not only determines the physical properties of the product but also directly affects the product's competitiveness in the market. Therefore, in the mixing process, we must pay attention not only to output and quality but also strictly control multiple aspects such as raw materials, process parameters, and production procedures.

Product knowledge

Mold Material Selection Before Mold Making

Aug 19,2025

When making molds for rubber products, the first consideration is the selection of mold raw materials. The selection of mold materials should be determined based on the product's quality, quantity, structure, etc. Mold material selection is a very important part of the entire mold making process.

Product knowledge

Technology and craftsmanship behind rubber processing

Aug 12,2025

At Dalian Bohai Rubber and Plastics Co., Ltd., mixing engineers are indispensable technical core members in the production process of rubber products. They are like "rubber magicians", transforming various raw materials into high-performance rubber compounds through precise formulas and processes, laying the foundation for subsequent products.

Product knowledge

Unveiling the Quality Code within Rubber through Mooney Viscometry

Aug 12,2025

Pushing open the door to the Bohai Rubber Testing Laboratory, a serious and focused atmosphere permeates the air. From today onwards, we will gradually get closer to the "unsung heroes" who safeguard product quality—the professional equipment in the laboratory. At this moment, the lens is focused on a machine in operation. The technician's hands steadily operate the machine, which is the subject of our discussion today: the Mooney viscometer.

Product knowledge

Rubber processing

May 29,2025

This process includes basic procedures such as plastication, mixing, calendering or extrusion, molding, and vulcanization. Each procedure has different requirements for the product and is supported by several auxiliary operations.

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Address: No. 39-6-1, No. 2, Gangxing Street, Economic and Technological Development Zone, Dalian City, Liaoning Province
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