2012年12月14日星期五

New composite brake disc

Almost brake discs are made ​​by cast iron. Recently,a lot of racing and other high performance vehicles have been equipped with composite design brake disc. This design in the surface of the brake disc using the hybrid composite (carbon fiber – ceramic), while the remaining part of the use of aluminum or cast.
The Brembo launched a new brake disc: the complex cast floating brake discs made of cast iron and aluminum. The new brake disc has a lot of advantages: lighter weight (15-20%) reduced the driving comfort higher, better corrosion resistance, abrasion resistance and higher braking performance.
Complex casting floating brake discs optimize brake system performance SUV from the most basic to the sporty the strongest sports cars and commercial vehicles vehicles.
Complex cast floating brake disc with a cast iron braking surface and aluminum caps Ministry, this design is ideally combines the lightweight characteristics of heat resistance advantages of cast iron and aluminum. Innovative technology so that one member can be manufactured using two materials, in working condition, the brake disc as an integral member at a low temperature effective operation, while at high temperatures, maximum performance, and deformation may occur, then the system dynamic disk will be run as a floating part.
Cast brake discs lighter complex to meet the demand for lightweight braking system, brake response limit work state, allowing a more sensitive and has better performance of high-temperature fatigue resistance. Therefore, the probability of instantaneous thermal deformation and permanent thermal deformation event, appears will be significantly reduced. The the instantaneous deformation events usually occur when the brake pedal is depressed, the brake disc may have a fever, however, the the permanent brake rotor deformation is the main reason for the vibrations of the vehicle during braking.
The cast iron has the best thermal performance, the degree of deformation is low, and good thermal conduction properties, while having good technological properties, such as castability and high machining performance. It also has many other advantages, such as good damping performance. On the other hand, aluminum has the advantages of light weight, the density is only cast iron 2? Times, so that, depending on the application of complex casting the brakes disc than one brake disc light 15-20%.
This is a major step forward, because taking into account the weight reduction will significantly improve ride comfort and driving accuracy, even if the vehicle weight reduced to 1 kg car manufacturers also have extraordinary significance in the removal of “non- hanging “especially after the weight.
Unlike integral braking disc complex casting the brake disc has a symmetrical braking surface, in the embodiment during braking disc surface temperature distribution is more uniform, which means release the residual degree of deformation of the brake after a significantly lower (70% reduction) . In addition, the complex casting design means that the brake ring, having the characteristics of the natural materials free expansion under heat. This effectively improves the performance of the floating disk. But the floating components do not need too many parts.
Given two complex casting material has many excellent characteristics, this performance brake disc successfully reduces the material of the brake disc in the brake is released and the brake pad wear.
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2012年11月30日星期五

The change frequency of brake disk

In theoretically: The biggest wear limit of brake discs is 2 mm, the new brake discs must be replaced after limit. But in actual, almost all owners are not strictly carried out the standard. The change frequency also is measured according to the driving habits. The measured standard as follows:
1 According to the change frequency of brake pads.  If the pads replacement with high frequency, we suggestion check the thickness of the brake discs. After all, the faster consumption of brake pads means frequent braking.
So you’d better check the brake discs regularly.
2 According to wear condition to decide: except normal wear, the quality and the wear caused by foreign body in normal use process. If the brake disk was foreign body wear some deeper in the ditch, or disk wear a deviation (some local thin, some local thick) would recommend replacing, because this kind of wear difference after deviation will directly influence our safe driving.

2012年11月25日星期日

Process of our brake disc production

Process of our brake disc production Casting The system of forming cold-box consists of a mixture of sand with two resins, this mixture is added to a tool (negative part), where she is forced to pass through a gas called a catalyst to accelerate the solidification of this mixture, resulting Mold the mixture solidified. After making the molds, they are referred to the melting and casting industry.
Fusion
In the induction furnace is added to steel, pig iron (Material noble), scrap iron (used disc brakes, engine housings …), return (chip and channel) and some alloying elements (carbon, silicon .. .) for the ideal composition of the alloy to the established line of brake rotors and drums. When temperature reaches 1200 ° C, it begins the process of fusion of materials, where they then pass into a liquid. When the metal reaches a temperature of approximately 1450 ° C, is taken to analyze a sample in a device called spectrometer, 14 chemical elements and verify that all these are “within” the range of tolerance. Leak It is the process where the liquid metal is removed from the oven and added within the sand molds, and after this process is cooled down (goes to the solid state).
Deburing
After solidification of the parts, there is the separation of these returns to the sand molding process to start the cycle. The parts then go to step Blasting, receiving a discharge of steel shot with high pressure (the goal of this operation is the removal of burrs and surface impurities), then the parts are separated by code and counted.
Definition
Technical Machining Machining is a mechanical process where the whole piece is the result of a process of removing material. It is a relationship between rotation and advancement, thus causing a removal of material. In practice this means submitting a raw material to the action of a machine and / or tool to be worked out .
CNC Machining
In the machining process, parts go through CNC lathes (Computerized Numerical Control) machines, high precision and production. This process is the removal of material and machining, where the piece reaches a speed of 1500 rpm (revolutions per minute) and an insert carbide “cutting” measures specified in the piece. Hurricane In the drilling process is carried out drilling of parts where these holes will be useful to set the piece in the vehicle. Grinding After completion of the holes, the pieces go through a process of finishing the track brake, called grinding, following the same method of work of the CNC. This finish is to ensure that the ski brake disks are parallel to each other. Balancing The balancing process is to leave the piece with its mass distributed as uniformly as possible. The parts are trapped in a machine that spins at 1100rpm, where sensors measure when the play is unbalanced. If the result is found above the tolerance, the play suffers from a small cut, thereby removing some material, either by making the balancing.
Packaging and Shipping
After completion of the entire process of manufacturing the parts, they are taken to the washing process. In this process the parts are hung on hooks that take parts of a product to spray degreaser used to remove possible traces of grease or oil the part. At the end of this line, the pieces are still immersed in a solution of protective oil, in order to protect the piece of oxidation. After this immersion, the parts are removed from the hooks, put into individual plastic bags and placed inside the packaging, which are then carried to the inventory of finished product.

2012年11月23日星期五

Brake disc of Haoze is the most cost-effective discs.

Brake disc of Haoze is the most cost-effective discs.

High Quality: A focus on high quality casting materials, tight machining tolerances and automatic casting production line, ensure that Haoze Disc deliver consistent levels of performance and reliability.
Large OEM range: According to our powerful machining capacity, we can manufacture lots of kinds of brake disc /rotor for different auto type, only receive the drawings or samples. At present we have more than 1600 existing products for Volkswagen, Toyota, Mitsubishi, Nissan, Mazda, Ford, GM, Chrysler, Daewoo, Hyundai, Kia, BMW, Volvo, Mercedes Benz, Citroen, Chery, JAC and truck brakes disc.
Competitive price: Local Industrial Scale of OEM brake disc, Near sea port, Labor and other costs are less expensive.

Who is Laizhou Haoze?

Laizhou Haoze was established in 1997, and located in the world’s biggest hub of auto brake parts —- Laizhou city, Shandong province. Company employees more than 150 people, the production capacity could reachs 2 million pieces pre year.

Products Features & Benefits

–High carbon, grey iron composition
–Low noise propensity.
–High thermal conductivity for fade and cracking resistance.
–Excellent high and low temperature mechanical strength.