laboratoire
Island Hengjun Sealing Components Co., Ltd., as an enterprise specializing in the research and manufacturing of high-performance rubber seals, is well aware that product quality is the cornerstone for the survival and development of the company. Therefore, the company has invested in establishing a professional testing laboratory for rubber materials and products with advanced technology and complete functions. This laboratory is equipped with international mainstream and industry-leading testing equipment, covering the entire process of testing rubber materials from raw material evaluation, formula process optimization to product performance verification, providing solid experimental guarantees and data support for the high quality, high reliability, and continuous innovation of the products.
- Core Laboratory Testing Capabilities
- Material Physical and Mechanical Performance Testing:
Equipment: Rubber Tensile Testing Machine
Capability: Accurately determine core mechanical performance indicators of rubber materials such as tensile strength, elongation at break, tensile stress at constant elongation, and permanent deformation.
Standard Basis: GB/T 528, ISO 37, ASTM D412, etc.
Application: Evaluate rubber material strength and toughness, predict the tensile, tear resistance, and rebound sealing performance of the sealing components in actual working conditions.
- Evaluation of material aging resistance:
Equipment: Rubber aging test chamber (thermal air aging)
Capability: Simulate the performance changes of rubber materials under long-term high-temperature conditions. Conduct thermal air aging experiments to assess the retention rates of properties such as tensile strength, elongation, hardness, etc. after aging.
Standard basis: GB/T 3512, ISO 188, ASTM D573, etc.
Application: Predict the service life and performance degradation trend of seals in engine compartments, high-temperature pipelines, etc., and guide the design of anti-aging formulations.
- Evaluation of material cold resistance:
Equipment: Rubber low-temperature test chamber
Capability: Test the performance of rubber materials under the set low-temperature environment. Conduct low-temperature brittleness tests, low-temperature compression permanent deformation tests, low-temperature resilience tests, etc.
Standard basis: GB/T 1682 (brittleness temperature), GB/T 7759 (low-temperature compression permanent deformation), ASTM D1329 (low-temperature retraction TR Test), etc.
Application: Ensure that seals maintain elasticity and sealing ability in cold regions, freezing equipment, etc., without cracking.
- Analysis of rubber compound processing performance:
Equipment: Melt Flow Meter (Melt Flow Tester)
Capability: Measure the melt flow index (ML 1+4 @ 100°C) and curing time of unvulcanized rubber compounds.
Standard basis: GB/T 1232.1, ISO 289-1, ASTM D1646, etc.
Application: Evaluate the homogeneity of compound mixing, predict the flowability before vulcanization and the storage stability, monitor the consistency of raw material batches, and optimize the mixing process.
- Analysis of vulcanization characteristics:
Equipment: Rubber no-rotor vulcanization instrument
Capability: Precisely determine the vulcanization curve of the rubber compound at the set temperature, obtain key parameters such as minimum torque (ML), maximum torque (MH), curing time (ts1, ts2), positive vulcanization time (t90), vulcanization rate, etc.
Standard basis: GB/T 16584, ISO 6502, ASTM D5289, etc.
Application: Optimize vulcanization formulations (amounts of accelerators, vulcanizing agents), determine the optimal vulcanization time and temperature, monitor the stability of the vulcanization process, and ensure uniform vulcanization degree of the products.
- Evaluation of material friction and wear performance:
Equipment: Rubber friction tester (such as Akron wear tester, DIN wear tester, or custom friction pairs)
Capability: Measure the wear resistance performance (volume wear rate, wear index) and friction coefficient of rubber materials under specific conditions.
Standard basis: **GB/T 1689, ISO 4649 (Akron/DIN wear), ASTM D5963 (rotating drum method); friction coefficient based on specific equipment and method.
Application: Evaluate the wear life of dynamic seals (such as oil seals, O-rings), optimize the selection of sealing lip material and surface treatment process, and reduce friction energy consumption.
- Simulation of dynamic balance and operation performance of rotating components:
Equipment: Tire dynamic balance test machine (or similar rotating component testing platform)
Capability: Conduct dynamic balance detection on rotating components equipped with rubber seals (such as tire sealing rings, rotating shaft lip seals), and simulate operation at a certain rotational speed to evaluate the impact of the seals on the rotational stability and their own performance in dynamic conditions (such as temperature rise, leakage detection).
Application: Ensure the dynamic balance of sealing components in high-speed rotating equipment, reduce vibration and noise, and preliminarily verify the reliability of the seals in simulated conditions.
- Overview of Key Equipment Technical Parameters (Example) Rubber Tensile Testing Machine: Maximum load ≥ 200kN, accuracy grade ≤ ±0.5%, equipped with high-precision extensometer, capable of conducting various tests such as stretching, tearing, compression, and bending.
Rubber Aging Test Chamber: Temperature range RT + 10℃ ~ 300℃, temperature fluctuation ≤ ±0.5℃, temperature uniformity ≤ ±2℃ (@100℃), equipped with a standard thermal air circulation system meeting the requirements.
Rubber Low Temperature Test Chamber: Temperature range -70℃ ~ RT, temperature fluctuation ≤ ±1℃, temperature uniformity ≤ ±2℃ (@-40℃), meeting the requirements for deep low-temperature testing.
Molini Viscosity Tester: Complies with international standards, temperature control accuracy ±0.3℃, rotor speed stability.
Rubber No-Rotor Vulcanization Machine: Temperature range room temperature ~ 200℃, temperature accuracy ±0.1℃, wide torque measurement range, high resolution.
Rubber Friction Testing Machine: Can be configured with different abrasion methods (such as Akron, DIN, Taber) or friction pairs (ball-disc, ring-block, etc.), with precise load, speed control and abrasion measurement functions.
Track Drive Balance Testing Machine: Maximum speed ≥ 3000 RPM (depending on specific model), balance accuracy up to G0.4 level or higher, equipped with vibration and speed monitoring functions.
- Comprehensive: Covers core performance testing items for rubber materials and seals, spanning the entire process from R&D, raw material entry, process control, and product inspection.
- Advanced: Utilizes industry-leading and technologically advanced testing equipment to ensure the accuracy, reliability, and international comparability of test data.
- Professional: Conducts tests in strict accordance with international (ISO, ASTM), national (GB), and industry standards, with standardized testing procedures and traceable data.
- Application-oriented: Test items closely align with the actual application conditions of seals (high temperature, low temperature, dynamic, friction, aging, etc.), with data directly serving product performance improvement and quality assurance.
- Data support: Provides strong experimental data support for new product development, formula optimization, process improvement, quality issue analysis, supplier evaluation, and customer technical communication.
Four. Laboratory Technical Advantages
- Comprehensive: Covers core performance testing items for rubber materials and seals, spanning the entire process from R&D, raw material entry, process control, and product inspection.
- Advanced: Utilizes industry-leading and technologically advanced testing equipment to ensure the accuracy, reliability, and international comparability of test data.
- Professional: Strictly follows international (ISO, ASTM), national (GB), and industry standards for testing, with standardized testing procedures and traceable data.
- Application-oriented: Test items closely align with the actual application conditions of seals (high temperature, low temperature, dynamic, friction, aging, etc.), with data directly serving product performance improvement and quality assurance.
- Data support: Provides powerful experimental data support for new product development, formula optimization, process improvement, quality issue analysis, supplier evaluation, and customer technical communication.
Four. Service Areas
Hengjun Sealing Components Laboratory not only serves internal quality control and R&D innovation, but also provides objective third-party performance verification for customers, enhancing their confidence in Hengjun product quality. Its testing capabilities are widely applied to: automotive engine, transmission, axle sealing, engineering machinery hydraulic sealing systems, petroleum chemical equipment pipeline sealing, general industrial rotating equipment sealing, special equipment and emerging fields with high-performance sealing components.
Qingdao Hengjun Sealing Components Co., Ltd. Laboratory, with its advanced equipment configuration, complete testing capabilities, professional testing level, and strict quality management system, forms an important pillar of the company’s core competitiveness. It is Hengjun Sealing Components’ pursuit of excellent quality, realization of technological leadership, and meeting of customers’ strict requirements, providing scientific experimental guarantees for the brand commitment of “Hengjiu Sealing, Junji Quality”.
Note: This report summarizes the laboratory capabilities based on the company’s equipment list. Specific equipment models, precise measurement ranges, and accuracy indicators need to be based on the laboratory equipment archives. The laboratory continuously strives for capability improvement and can develop customized testing schemes based on specific customer requirements.
Qingdao Hengjun Sealing Components Co., Ltd.**
Address: Daxin Street, New Economic Development Zone, Qingdao City
Telephone: 18953206626, WhatsApp: 18653206626 http:www.globalrubbersealing.com