Hengshui Longjie Rubber and Plastic Products Co., Ltd. new website is officially launched.

Congratulations to Hengshui Longjie Rubber and Plastic Products Co., Ltd. on the launch of the new website.

14 Feb,2019

Introduction to Sealing Ring Rubber Products

The Y-shaped sealing ring series includes products made from various materials such as fluororubber, nitrile rubber, and silicone rubber, widely used in various machinery, resistant to various petroleum-based oils and multiple chemical media: the non-glue types can meet temperature ranges of -60℃ to +300℃, with a pressure range of: <10MPa (hydraulic), <1MPa (pneumatic), <16MPa (static seal) for nitrile rubber, and the expansion rate for gasoline compatibility (90, 93, 97) is 0. 2. The Y-type sealing ring has products made from fluororubber, nitrile rubber, chlororubber, and other materials, widely used in industries such as hydraulics, machinery, and pneumatics. 3. The silicone rubber series is equipped with advanced testing equipment.

16 Apr,2019

Common issues with the inner rubber layer of high-pressure rubber hoses

If there are issues with the inner rubber layer of the high-pressure rubber hose, it will affect the normal use of the hose. Therefore, we sometimes need to conduct regular inspections. Today, I will discuss the common problems that occur with the inner rubber layer of high-pressure rubber hoses, hoping to help everyone. Let's take a look together. For example, if there is a rupture in the inner rubber layer of the high-pressure rubber hose, it is essential to promptly check the temperature of the hydraulic oil, as it may have exceeded the burst pressure tolerance of the high-pressure rubber hose. In such cases, the high-pressure rubber hose must be replaced immediately. Another issue is severe deterioration of the inner rubber layer of the high-pressure rubber hose. If it is deteriorated,

23 Apr,2019

What types of corrugated pipes are there?

The corrugated pipe is mainly divided into metal (stainless steel, carbon steel) corrugated pipes and plastic corrugated pipes. Metal corrugated pipes are mainly used for compensating thermal deformation of pipelines, reducing vibration, and absorbing settlement deformation of pipelines, and are widely used in industries such as petrochemical, instrumentation, aerospace, chemical, electric power, cement, and metallurgy. Corrugated pipes made of plastic and other materials play an irreplaceable role in fields such as medium transportation, electrical wiring, machine tools, and home appliances. A tubular elastic sensitive element is formed by connecting foldable wrinkled sheets along the folding and telescoping direction. Its open end is fixed, while the sealed end is in a free state, and it uses an auxiliary spiral spring or leaf spring to increase elasticity. During operation, it is internal.

05 May,2019

Product uses of high-pressure steel wire braided rubber hoses

1. Product Structure: The structure of the steel wire braided rubber hose consists of a liquid-resistant synthetic rubber inner layer, a middle layer, a steel wire braided reinforcement layer of type I, II, or III, and an outer layer of synthetic rubber with excellent weather resistance. 2. Product Use: The steel wire reinforced hydraulic rubber hose is mainly used for hydraulic supports in mines and oil field extraction. It is suitable for engineering construction, lifting and transportation, metallurgy and forging, mining equipment, ships, injection molding machinery, agricultural machinery, various machine tools, and hydraulic systems in various industrial sectors for transporting petroleum-based fluids (such as mineral oil, soluble oil, hydraulic oil, fuel oil, lubricants) under certain pressure and temperature.

02 Nov,2018

The main use of metal hoses

Stainless steel metal flexible hoses are excellent flexible components in modern industrial pipelines. The structure consists of a stainless steel corrugated pipe covered with one or more layers of steel wire or steel belt mesh, with joints or flanges at both ends, used for transporting various media. Its characteristics include: corrosion resistance, high and low temperature resistance (-196℃ to +420℃), lightweight, compact size, and good flexibility. Main uses: 1. Transporting corrosive chemical media or organic solvents (e.g., nitrogen water, acetone, etc.) 2. Transporting high-temperature gases, hot oil, and other high-temperature media (e.g., steam, heat transfer oil, etc.) 3. Transporting low-temperature or ultra-low temperature media (e.g., liquid nitrogen) 4. High-temperature environments.

05 May,2019

The quality issues of high-pressure hoses are related to improper use.

High-pressure hoses are a commonly used type of liquid transmission pipeline in agricultural machinery. During use, under the premise of quality assurance, improper use of high-pressure hoses can significantly shorten their lifespan. In practice, most damage to high-pressure hoses is caused by improper use. If a high-pressure hose bursts, it is generally not due to excessive pressure but rather related to the intensity and frequency of pressure shocks. During operation, high-pressure hoses may experience sudden increases in oil pressure repeatedly, leading to increased damage to the oil seals in various parts of the hose, as well as bubbling and rupturing of the hose.

23 Apr,2019

Classification of rubber formulations and post-curing treatment of rubber products

Classification of rubber formulations and post-curing treatment of rubber products 1. Basic formulation (standard formulation) Basic formulation, also known as standard formulation, is generally used for the identification of raw rubber and compounding agents. 2. Performance formulation (technical formulation) Formulation design carried out to meet certain performance requirements of rubber products, aimed at satisfying product performance requirements and processing technology requirements, enhancing certain characteristics, etc. Performance formulations should be based on basic formulations, comprehensively considering the combination of various performances to meet the requirements of product usage conditions. 3. Practical formulation (production formulation) Practical formulation, also known as production formulation, is used in laboratory conditions.

16 Apr,2019