Selection Requirements For The Single Wire Seal

Seal selection requirements:

Single Wire Seal Exporter shares that one is to choose the appropriate seal material and hydraulic oil, as well as the adaptability of working temperature, oil compatibility. The second is the relative sliding parts and seals geometric position precision (concentricity) high material good (such as hard chrome plating) and surface roughness thin can extend the service life.

(1) used for hydraulic pump, motor shaft oil seal not only requires the sliding surface roughness within the Ra is 0.25 m, but also for hard chromium plating on the surface, when used in the specific need according to the specific situation adjust oil seal lip radial force of spring, the elastic moderation, even when installation and installed with a sleeve or shims to protect the sealing ring, lest his lips, twisting, twisted, sliding out in spring.

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(2) hydraulic cylinder inner surface commonly used rolling machining method, not only improve the surface roughness, but also make its surface for cold hardening treatment, is conducive to extending the service life of the seal ring. In addition, the pressure used, the length and type of sliding surface also have a great impact on the service life. Therefore, the “scheduled inspection” time should be determined according to these conditions.

(3) requirements sealing surface lubrication state is good, to prevent contamination. It is also necessary to use a clean grade of oil and the correct method of installation.

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Vulcanization Of Rubber Products(part 2)

2. Mechanical dressing

Wire harness Seal Manufacturer shares that mechanical dressing refers to the process of trimming rubber mould products with various special machines and corresponding technological methods. It is a more advanced dressing method at present.

(1) with the help of pressure machinery, stamping die and punching knife, the glue edge of the product can be removed. This method is suitable for the products and the model products, such as bottle stoppers, leather bowls and so on, whose glue edges can be placed on the die or the bottom plate of the die. For the products with higher gum content and smaller hardness, the impact method is generally used to impact the cutting edge, so that the greater elasticity of the products can reduce the back part of the knife is not neat, side sag; And for the products with lower gum content and higher hardness, the method of die cutting can be adopted directly. In addition, the blanking is also divided into cold cutting and hot cutting, cold cutting refers to the cutting at room temperature, the equipment requires a high pressure, the quality of the blanking is good; Hot cutting refers to the high temperature -f, cutting should prevent high temperature contact products for too long, affecting the quality of products.

(2) mechanical cutting trimming is suitable for trimming large size products, the use of cutting tools. One side of cutting machinery are dedicated machines, different products using different cutting knives. For example, the tire vulcanized surface air holes and exhaust parts have different lengths of rubber strips, must be in the tire rotation conditions with grooves to cut the rubber strip.

(3) mechanical grinding trimming for mold rubber products with inner hole and outer circle, the grinding square is usually used. Grinding of cutting for particle must be the thickness of the grinding wheel, grinding trimming precision is low, the grinding surface rough ^ may have residual sand, affect the use effect.

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Knowledge of rubber sealing performance and installation

Following shared by the Single Wire Seal Supplier.

1. Elastomeric dimension outer diameter cable hole diameter 215-35mm 105-8mm description: the sealing can be customized according to the actual site requirements according to the cable pipe-1mm-4mm and cable diameter 2mm selected products.

2. Clamp plate, hook and bolt, nut specification size clamp plate specification thickness outer diameter inner diameter screw hole bolt specification 150 mm3 mm 145 mm 95 mm9.5mm 9.5mm 130 mm3 mm 125 mm 75 mm special-shaped clamp plate thickness long and wide inner diameter screw hole bolt specification 3mm 15mm35mm 7.5mm 6mm70mm hook thickness long and wide inner diameter screw hole bolt specification 1mm 15mm40mm Phi is 9 mm

3. The cable hole plugging function as a link in the electric power construction, directly related to the safe operation of electric power facilities, therefore, sealing products required flame-retardant, waterproof, dustproof, corrosion resistance, prevent gas leakage small animals to enter, sealed tight, easy construction, easy to remove, and other functions, in order to achieve the above functions, in addition to the request of rubber material resistance 2 outside, also requires a hole plugging after sealing pressure, not less than 2 kg/cm.

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Vulcanization Of Rubber Products(part 1)

4 Way Connector Sealing Plug Supplier shares that After vulcanization of rubber products often need to carry out some post-treatment, in order to become a qualified product. This includes:

(1) rubber mold products to edge dressing, make the product surface smooth, shape size to meet the requirements;

(2) after some special processing, such as the surface of the products for processing, so that the use of special purpose products performance has been improved;

(3) for products containing fabric framework such as rubber tape, tires and other products to be hot stretch cooling and curing in the air after cooling pressure, to ensure that the size of products, shape stability and good performance.

I. dressing of mold products after vulcanization

During vulcanization of rubber mold products, the rubber material will flow out along the parting surface of the mold, forming an overflow rubber edge, also known as burr or fly edge, how much and thickness of the rubber edge depends on the structure of the mold, precision, plate vulcanizing machine plate parallelism and the amount of glue. Modern products made from rimless molds have very thin adhesive edges that are sometimes removed from the molds or removed with a light rub. However, this mold cost is high, easy to damage, most of the rubber mold products after curing need finishing treatment.

1. Manual trimming

36 Way Automotive Connector Cable Seal manufacturer tells you that hand trimming is an ancient trimming method, which includes cutting glue edges by hand with punch. Remove glue edges with scissors, cutters, etc. The quality and speed of hand-finished rubber products also vary from person to person and require finishing

The geometrical dimensions of the finished product must conform to the requirements of the product drawing and shall not be scratched, scratched or deformed. Before dressing, clear the dressing parts and technical requirements, master the correct dressing method and use the tools correctly.

Sealing Performance Depends On The Efficiency And Performance Of The Whole Machine

Single Wire Seal Supplier tells you that sealing performance depends on the efficiency and performance of the whole machine.

Because materials such as rubber, glass, metal, alloy corrosion defects, it is difficult to meet the strict temperature, pressure and chemical material coexistence environment, the resulting loss is very amazing. Ptfe and ptfe have become the main corrosion resistant materials in petroleum, chemical, textile and other industries due to their excellent corrosion resistance. Its specific applications include: transportation of corrosive gas pipelines, exhaust pipelines, steam pipelines, steel mill high pressure oil pipelines, aircraft hydraulic systems and cold pressing high and low pressure pipeline systems, distillation towers, heat exchangers, kettles, towers, tanks, lined valves and other chemical equipment.

Sealing performance depends on the efficiency and performance of the whole machine. Ptfe material has corrosion resistance, ageing resistance, low friction coefficient and viscosity, wide range of heat resistant, elastic characteristics make it very suitable for application in manufacturing need high corrosion resistance, temperature higher than 100 ℃ the seals. Such as machine, heat exchanger, pressure vessel, large diameter flange sealed container, valve, channel pump, glass reaction kettle, plane flange, large diameter flange seal, shaft, piston rod, valve rod, worm gear pump, piston rod seal, and so on.

Single Wire Seal Wholesaler thinks that due to the adverse friction of part of the equipment lubrication, such as in the case of grease can be dissolved and the failure of dissolving agent or paper, pharmaceutical, food, textile and other industrial product fields need to avoid oil, so that filling ptfe materials become mechanical equipment parts oil-free lubrication (direct load) in the most ideal material. This is because the coefficient of friction is the lowest known for a solid material. Specific purposes include chemical equipment, paper machinery, agricultural machinery bearing, used for piston ring, machine tool guide, guide ring; In civil engineering is widely used as Bridges, tunnels, steel roof structure, bearing bearing of large chemical pipelines, tanks, as bridge bearings and reduced rotation.

Something About The Seal We Must Know

Seal design considerations

1. Please read the instructions of each series of products before designing the groove, and make clear that the overall groove or split groove is used for this product; In the process of installing seals,supplied from Single Wire Seal Supplier, avoid sharp edges, and install seals into the whole slot with the help of installation tools. The designer should consider the parameters of groove size precision, surface roughness, extrusion clearance, etc. Please refer to the product instructions, drawings and size table for details.

2. Before the installation of seals must ensure that there are no impurities and cracks in the sealing groove, the seal groove and the surface of the seal coated with operation oil; Gradually install seals in sequence; Avoid sharp edges and centralize seals during installation to avoid distortion and deflection; If the split groove, finally tight pressure cover.

Seal selection requirements

For the Silicone Single Wire Seal manufacturer,One is to choose the appropriate seal material and hydraulic oil, as well as the adaptability of working temperature, oil compatibility. The second is the relative sliding parts and seals geometric position precision (concentricity) high material good (such as hard chrome plating) and surface roughness thin can extend the service life.

(3) requirements sealing surface lubrication state is good, to prevent contamination. It is also necessary to use a clean grade of oil and the correct method of installation

Blind Block For Trip Design Of Wiring Harness Single Wire Seal

Abstract: normally, the blind plugging of airtight automotive Wiring Harness Single Wire Seal connectors is fixed in the sheath by the friction generated by the interference of the sheath and the blind plugging. When the pressure on the blind block is greater than the friction force due to the change of ambient temperature and other conditions in use, or when the additional force due to the rotation of wire harness production and vibration in automobile use is greater than the friction force, the blind block can be detached from the sheath. After the blind plug is removed from the sheath, the hermetically sealed connector will not perform as well as it should. Based on the analysis of the blind plug of the airtight vehicle electrical wire harness connector, two solutions are proposed.

Automotive wire harness connectors can be classified into sealed and unsealed connectors according to their sealing performance. Sealed type splices are generally used in the engine room and other parts that are easy to flood, while non-sealed type splices are generally used in the cab and other parts that are not easy to flood. It can be known from the use environment of sealed connector that its waterproof effect will directly affect the quality of the connector, and then affect the circuit conduction effect of the car. Therefore, the waterproof effect of sealed connector is an important index to measure the performance of sealed connector.

Silicone Single Wire Seal Manufacturer analyzes the sealing situation of airtight electrical wire harness connector for vehicle, and puts forward two solutions to the problems that are easy to appear in the use.

Causes Of Tempering Of A Car Engine

1, the mixture is too thin:

The cause of the tempering and firing of the automobile engine may be the failure of the oil circuit or the intake system: the oil circuit failure is mainly caused by the fuel injection of the injector is too small. The main cause of the fuel injection of the injector is: oil pressure Low; the injector is clogged. The failure of the intake system is mainly caused by the excessive intake air volume. The main reason for the excessive intake air is that the sensor that controls the intake air is invalid; the intake manifold leaks.

2. There is a problem with the ignition system:

Automobile engine tempering and firing failure is mainly due to insufficient ignition energy (high voltage line resistance is too large; ignition coil is damaged; power supply voltage is not enough) or spark plug failure.

3. The ignition advance angle is too large:

The main causes of tempering and firing of automobile engines are: CKP gap is not suitable; CKP is loose; temperature sensor is damaged; engine load; ECU is damaged.

Qiangong is a China manufacturer of Automotive Connector Seal . We have a high-tech work shop. We have a complete quality management system. Choose Single Wire Seal Supplier , you can be get most careful and thoughtful service!

The Rubber Seal requirements

Following shared by Single Wire Seal Manufacturer.

(1) when installing, using and removing the cable pipe hole sealing device, it shall not cause corrosion or mechanical damage to qualified cables in contact with it.

(2) the pipe holes of 35kV and above power cables shall be sealed on both sides of the pipe holes by flexible sealing method. The sealing flange shall be embedded on both sides of the cable pipe hole, and the water-resistant rubber gasket clamped between the fastening flange and flange plate cover shall be expanded under pressure by fastening the bolt nut to realize the sealing of pipe hole.

(3) when power cables of 10kV and below enter (exit) pipe holes, flexible sealing method should be adopted to seal them on both sides of the pipe holes. The flexible sealing flange is installed on both sides of the cable pipe hole. By fastening the bolt and nut, the water-blocking rubber plug sandwiched between the flange is inflated by pressure to realize the sealing of the pipe hole. One end of the hook is hung on the hole wall of the cable pipe, and the other end is fixed on the fastening bolt, so as to ensure that when the side facing the water bears a large water pressure, the hook can help assume the role of water pressure and prevent water pressure from pressing the sealing flange into the pipe hole.

(4) when a 10kV single-core cable does not pass through the same pipe hole in three phases at the same time, the metal material of the flexible sealing device shall not be a closed loop structure, otherwise the metal material shall be non-ferromagnetic material to prevent eddy current damage of the cable caused by the metal material of the sealing device.

(5) flexible sealing flanges should be used to seal the interlayer side of transformer substation room and the side of the first working well outside the station. In order to reduce the influence of leakage on other power pipes, flexible sealing flange should be used to seal the pipe holes in the working Wells on both sides of the leakage pipe. When there is leakage in the electric power exhaust pipe into the well of electric power equipment foundation, it is necessary to plug the pipe hole on the seepage side of the well of electric power equipment foundation. When the power exhaust pipe is connected with the power tunnel, the pipe hole on the tunnel side of the power exhaust pipe and the tunnel side of the first working well connected with the power exhaust pipe should be blocked. Other pipe holes may not be plugged.

That’s all for my sharing for the Seal requirements,and welcome to purchase our Automotive connector Single Wire Seal!

The Role Of The Seal On The Car Harness

The durability and reliability of automotive parts are increasingly valued. As a protective material, rubber parts are widely used in automobiles. The importance of the Single Wire Seal is self-evident, especially for harness protection of the engine compartment and the lower chassis of the car. Because usually the two places are in a harsh environment with a high probability.

There are two main ways for the electronic components such as connectors to enter the water. The first is that the external liquid penetrates into the interior by the gravity of the earth’s core, such as the connector without the seal ring, or the moisture enters from the internal connection point of the wire harness; “The word, because the general electrical appliance has a certain temperature during work, the internal air forms a certain pressure. When the work stops, the temperature drops and the internal pressure is also small. At this time, the air pressure difference will be formed. If the connector is poorly sealed, the water vapor will be smooth. The gap between the strands of copper wire enters the inside, causing the function to fail; therefore, the connectors in the wet zone generally require the addition of a seal ring (mat)

For the sealing test of the connector, the general Single Wire Seal Factory is integrated in the electronic test bench. The test module of the corresponding connector will have its own sealing test, and it is also given a rated pressure value, while testing its continuity. Test sealing performance.