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REDEFINE BRAKE HOSE

2022-07-25

The steel hose should be called the brake hard pipe accurately. In order to save cost, the original factory uses rubber. The brake hose is the only soft place in the brake oil circuit of the whole vehicle. The tube is bound to be twisted off. The disadvantage of the rubber hose is that it will make the brake pedal soft and weak and not direct enough. The steel hose is wrapped with a stainless steel woven mesh to wrap the Teflon hose to suppress its expansion, which can relieve the soft feeling of the rubber hose to a certain extent, making Braking with more confidence. When upgrading the brake system, many riders like to upgrade the steel throat together, which is the icing on the cake, so there is no problem with the operation.
However, the upgrade of the steel throat needs to face two problems:
1 Is the position of the steel throat reasonable? Whether there will be touch and pull. The position of the modified steel throat is often different from the original factory, and needs to be re-arranged. Many refit shops are not so professional, they have no experience in the installation of steel throats, and the location is not rigorous, which may easily cause the steel throats to rub against other parts of the body during the vehicle journey. The steel throat is very fragile. As long as there is friction, there will be a safety hazard for a long time. Once the brake fluid leaks, the brakes will be gone.
Especially for some special brand models, such as Land Rover, if you choose to replace the big-name general-purpose steel throat, the position of the steel throat is likely to need to be adjusted many times before it can be used normally. At some special angles, it is still not guaranteed not to touch. At this time, it is necessary to consider replacing the steel throat with the original position. The structure, position, and length are exactly the same as the original factory. The only difference is that the rubber hose is turned into a steel throat. Redefine steel throat does a great job of customization.
More flexible and practical, worthy of support. At the same time, it also advises some consumers not to magnify the gap between imported and domestic steel throats in their imaginations. Domestic steel throats surpass imports too much, and there are no technical barriers.
2 It is unrealistic to expect that the braking effect will be drastically changed if 4 steel throats are replaced. The steel throat can reduce the soft foot feel, and the brake pedal becomes more direct, but it has little effect on the braking force and effect. Brakes are a complete system, and only when all parts are fully upgraded can there be obvious improvements.
3 The most basic requirements of brake steel throat
1. Good material, can resist long-term harsh use environment, not afraid of dust, soil, high temperature, rain, salt spray erosion, can resist high temperature, high pressure, bending resistance, fatigue resistance of oil circuit
2. Accurate data, accurate length of brake steel throat and accurate joint data are the most basic requirements, and also the premise of normal loading, otherwise it will cause unnecessary accidents such as touching and pulling.

In the brake system, the driver pushes the brake master cylinder to compress by stepping on the brake pedal, transmits the brake oil to the brake cylinder (caliper or drum brake) through the oil pipe, and pushes the piston to tightly rub the brake pad and the brake disc. Friction also occurs to slow down the vehicle, completing a braking process. The brake hose acts as a conduit for hydraulic fluid, like a blood vessel, transporting blood energy to the organs. People can't live without blood vessels, and cars can't stop without brake hoses. Although the brake hose is small, it has a great effect.
First, let's talk about the shortcomings of the original car rubber tubing:
Although the elasticity of the rubber hose is within an acceptable range, in fact, when the brake oil is working, the rubber hose will still expand to a certain extent, so it will absorb a part of the pressure of the brake oil. This is more pronounced with increasing stress. Therefore, in many emergency situations, the brakes are pressed hard, but the brakes are found to be the same as if they were not. This is caused by the instantaneous expansion of the brake hose.
In addition, the high temperature resistance of ordinary rubber tubing is poor. When the brake oil is high temperature and high pressure, it is easy to cause the tubing to rupture, and the brake failure affects driving safety! Especially after long-term use, the rubber tube with poor weather resistance becomes brittle and hard due to oxidation, which greatly increases the probability of rupture.
Now let's talk about the redefine steel throat. The inner pipeline of the steel throat is made of elastic polymer - Teflon (polytetrafluoroethylene). In order to suppress the elasticity of Teflon and completely improve the expansion, the outer layer is wrapped with stainless steel mesh, so that each metal oil pipe is soft without expansion due to pressure, and can resist damage caused by external force.
It is precisely because of these deficiencies of rubber tubing that the steel throat was born. In terms of material, the Teflon used in the brake steel throat is used as the inner tube. This material has excellent high temperature resistance, acid and alkali resistance, is almost insoluble in any solvent, and has a very low coefficient of friction. It can be used as a lubricant. It can be used to improve the strength and further improve the efficiency of liquid transmission, which is the ultimate.
The middle layer is wrapped with stainless steel mesh. The advantage of this configuration is that when you use the brakes, the pressure of the brake master cylinder on the brake oil will be completely transmitted to the brake calipers at the same time, which will offset the expansion generated by the rubber hose. When it drops to zero, the sensitivity of the brakes also increases. In addition, the stainless steel mesh is also more conducive to heat dissipation, which can effectively reduce the temperature of the brake fluid. The outermost layer is then wrapped in fireproof and dustproof PVC to further strengthen its firmness and durability.
In terms of interface, its optimized design can provide first-class sealing in complex application environments (such as severe swings, sudden temperature changes and different subsequent environments, etc.), and the material is also made of stainless steel CNC, with special coating to enhance its durability. In general, the steel throat can significantly improve the phenomenon of soft foot feel and make the braking response more sensitive and delicate. At the same time, it is more resistant to heat and corrosion, which ensures safety even in harsh driving environments.

Founded in 2008, Redefine is headquartered in Sichuan. It is a professional friction material manufacturer integrating R&D, production, sales and service. The company's main products are disc brake pads, drum brake shoes, subway and light rail. Brake pads and related hardware are distributed in mainland China, Europe, North America, Latin America, Southeast Asia, the Middle East and Africa.
   Redefine attaches great importance to research and development investment, and has a professional friction material research and development team led by top technical experts at home and abroad, industry-leading friction material testing and research and development equipment, and a friction material technology center that has been recognized and developed by the industry. Redefine advocates the synchronization of basic material research, automotive brake application research and testing and standard research, emphasizing accumulation. After years of hard work, the company has become the first Chinese private enterprise to supply brake pad products with brake giants such as ZF and Continental, and has achieved the first domestic production of disc brake pad products for Mercedes-Benz passenger cars. change. Based on the domestic market, Redefine has also successively supplied supporting brake pad products to many OEMs such as Great Wall, GAC, Changan, BYD, Jiangling, and Ford, enjoying a good reputation in the industry. Adhering to the tenet of "creating value and achieving win-win" and the development concept of "safety, leanness, integrity, and perfection", Redefine will always pursue the realization of customers' dreams in the field of friction materials, starting from solid basic skills and striving to become the industry leader By. Competitive-level exclusive custom formula and composite technology, surging and firm braking force, interpretation of speed and passion!

 

Fei Fei

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