1、 Technical characteristics: Collaborative evolution of materials, structures, and processes

Rubber tube assembly: the "flexible blood vessel" of hydraulic system

The rubber hose assembly is made by high-pressure steel wire weaving/winding rubber hose and steel joint through crimping process. The inner rubber layer is selected from nitrile rubber (oil resistant), ethylene propylene rubber (acid alkali resistant) or fluororubber (high temperature resistant) according to the characteristics of the medium. The reinforcement layer adopts multi-layer steel wire weaving or winding structure, and the outer covering layer is protected by wear-resistant and weather resistant rubber. Typical application scenarios include mine hydraulic supports, oilfield extraction equipment, and engineering machinery, with a working temperature range of -40 ℃ to+100 ℃ and a maximum pressure resistance of 70-100MPa.

The technological highlight lies in dynamic pressure adaptability: by optimizing the density of steel wire weaving and rubber formula, it can withstand the peak impact pressure in hydraulic systems and avoid fatigue damage. For example, the rubber hose assembly produced by Elephant Rubber Co., Ltd. has been proven to have a 30% increase in fatigue life compared to traditional products through simulating the periodic pressure fluctuations of mine hydraulic supports.

Flange high-pressure hose: "rigid connection" in high-pressure environments

The flange high-pressure hose achieves a tight bond between the flange and the pipe body through integral vulcanization or crimping connection. The inner rubber layer material needs to match the conveying medium (such as nitrile rubber when transporting gasoline), and the reinforcement layer can be made of fiber, steel wire or carbon fiber. Its significant advantages lie in its pressure resistance (up to 100MPa) and high temperature resistance (-30 ℃ to+120 ℃), making it suitable for mud transportation, acid-base medium transmission, and high-pressure hydraulic systems.

Taking the flange type high-pressure rubber hose produced by Litian as an example, its built-in spiral steel wire skeleton and wear-resistant inner rubber layer design extend the product's service life by 50% compared to traditional hoses when transporting sediment, and improve its anti torsion performance by 40%.

Quick connect oil pipe: a "safety lock" for efficient disassembly and assembly

The core technology of quick connect tubing lies in the design of quick couplings, which can be divided into two types: open and closed at both ends and open at both ends. The former uses a one-way valve core and steel ball locking mechanism to automatically close the passage when the joint separates, avoiding medium leakage; The latter simplifies the operation process through push in, threaded, or screw in designs. For example, the fuel pipe quick connector adopts a 316 stainless steel body and a conical sealing ring, combined with a locking claw structure, which can maintain zero leakage even under a pressure of 70MPa.

In the field of construction machinery, the application of quick connect oil pipes significantly shortens equipment maintenance time. Taking a certain brand of excavator as an example, the use of quick connect oil pipes has increased the efficiency of hydraulic pipeline replacement by 60%, while reducing downtime accidents caused by unexpected joint disconnection by 85%.

2、 Application scenario: Cross industry adaptation and optimization

Energy and Mining: Reliability under Extreme Operating Conditions

In mine hydraulic supports, the rubber tube assembly needs to withstand high impact pressure and frequent bending. The combination of its steel wire braided layer and oil resistant inner rubber layer can ensure stable operation in an environment of -40 ℃ to+100 ℃. Flanged high-pressure hoses are widely used in mud transportation systems in oilfield development. Their overall vulcanization process and wear-resistant inner rubber layer design can resist long-term wear of sediment particles.

The quick connect tubing plays a critical role in oil drilling platforms, with its quick disassembly and assembly characteristics supporting rapid maintenance of equipment in extreme weather conditions, while the one-way valve design prevents the risk of fire caused by high-pressure oil leakage.

Manufacturing Industry: Precision Control and Efficient Production

In injection molding machinery, the rubber tube assembly is used for hydraulic oil transmission, and its multi-layer steel wire winding structure can withstand pressures up to 100MPa, ensuring precise control of mold opening and closing. The flange high-pressure hose is used in the high-temperature steam conveying system of metallurgical forging equipment. Its high temperature resistance and flange sealing design can avoid equipment damage caused by high-temperature steam leakage.

Quick connect oil pipes enable rapid reassembly of hydraulic pipelines in automated production lines. For example, on automotive assembly lines, modular replacement of mechanical arm hydraulic systems can be achieved through quick connect fittings, increasing production efficiency by 20%.

Infrastructure: Balancing Safety and Durability

In hydraulic engineering, rubber hose assemblies are used for water pump suction and drainage systems, with a burst pressure not less than three times the working pressure, ensuring reliable operation in complex terrains. Flange high-pressure hoses are used for high-temperature water transportation in urban heating pipelines. Their metal flange connections and high-temperature resistant rubber outer layer can withstand temperatures up to 120 ℃ and external impacts.

The quick connect oil pipe enables quick connection of high-pressure water hoses in firefighting equipment, and its bi-directional sleeve design supports one handed operation, reducing response time by more than 30% in emergency rescue.

3、 Selection key points: balancing performance and cost art

Rubber Tube Assembly: Balancing Pressure and Bending Radius

When selecting, special attention should be paid to working pressure, medium compatibility, and minimum bending radius. For example, in high-pressure hydraulic systems, steel wire wrapped rubber hoses should be selected, which have a pressure resistance 50% higher than steel wire braided structures; In situations where space is limited, it is necessary to choose a rubber hose with the minimum bending radius that meets the installation requirements to avoid wire breakage caused by excessive bending.

Flange high-pressure hose: dual guarantee of pressure resistance and corrosion resistance

Select the material of the inner rubber layer based on the characteristics of the medium: nitrile rubber is used when transporting oil products, and fluororubber or ethylene propylene rubber is used when transporting acidic and alkaline solutions. In addition, the flange material needs to match the pipeline system. For example, stainless steel flanges are suitable for corrosive environments, while carbon steel flanges are suitable for general working conditions.

Quick connect tubing: the unity of sealing and ease of operation

In high-pressure applications, quick couplings with copper or all metal seals should be selected, with a pressure resistance capacity of over 70MPa; In frequent disassembly and assembly situations, push in quick connect fittings have more advantages due to their easy operation. At the same time, it is necessary to verify the safety factor of the joint to ensure that its rated pressure is not lower than the maximum pressure of the system.