Bimetallic composite brake disc and manufacturing method thereof
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A composite braking, bimetal technology, applied in the direction of brake disc, brake type, brake components, etc., can solve the problem of brake disc flange bottom cracking, affecting braking performance, cracking and other problems, reducing product The effect of wall thickness, improving service life and preventing temperature rise
Pending Publication Date: 2020-06-12
山西汤荣机械制造股份有限公司
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[0007] In view of this, the object of the present invention is to provide a bimetallic composite brake disc, aiming at solving the cracking of the flange bottom of the brake dis
Method used
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[0036] Example one
[0037] The bimetal composite brake disc includes a connecting mechanism 100 and a brake disc body 200, and the connecting mechanism 100 includes an integrally formed flange 101, a connecting body 102 and a composite body 103;
[0038] The connecting body 102 connects the flange 101 and the composite body 103. The connecting body 102 has a circular tubular structure. One end is provided with an integrated flange 101 for connection, and the other end is provided with an integrated composite body 103. The composite body 103 is in the shape of a ring, and the composite body 103 has an inner ring edge connected to the connecting body 102;
[0039] The brake disc body 200 has a ring-shaped structure, and includes two brake disc surfaces 201. The two brake disc surfaces 201 are parallel to each other and connected by a number of evenly cross-distributed cylinders 202 to connect the two brake discs. The disc surface 201 is connected as a whole, so that a ventilation pas...
Example Embodiment
[0053] Example two
[0054] Based on the basis of the first embodiment, the chemical composition of high-carbon gray cast iron is adjusted. The brake disc body 200 is made of high-carbon gray cast iron, and the chemical composition of the high-carbon gray cast iron is calculated by mass percentage:
[0055] C: 3.40~3.90, Si: 1.50~2.10, Mn: 0.50~1.10, P: ≤0.10, S: ≤0.12, Cr: 0.20~0.60, Cu: 0.30~0.60%, and the rest is Fe.
Example Embodiment
[0056] Example three
[0057] Based on the basis of the first embodiment, the chemical composition of high-carbon gray cast iron is adjusted. The brake disc body 200 is made of high-carbon gray cast iron, and the chemical composition of the high-carbon gray cast iron is calculated by mass percentage:
[0058] C: 3.40~3.90, Si: 1.50~2.10, Mn: 0.50~1.10, P: ≤0.10, S: ≤0.12, Cr: 0.20~0.60, Mo: 0.20~0.50%, and the rest is Fe.
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Abstract
Provided are a bimetallic composite brake disc and a manufacturing method thereof. The bimetallic composite brake disc comprises a connecting mechanism and a brake disc body, wherein the connecting mechanism comprises a flange, a connecting body and a composite body which are formed integrally; the connecting body connects the flange and the composite body, the connecting body is of a round tubular structure, the integrally-formed flange is arranged at one end of the connecting body for connection, the integrally-formed composite body is arranged at the other end of the connecting body, the composite body is in a shape of a circular ring, and the composite body has an inner circular ring edge connected with the connecting body; and the brake disc body is of a circular ring shaped structureand comprises two brake disc planes, the surfaces of the two brake disc planes are parallel, the two brake disc planes are connected by means of a plurality of uniformly cross-distributed cylinders into a whole, and a ventilating duct is formed between the two brake disc planes. The connecting mechanism is made of high strength steel plates, flange cracking or falling off from the top does not occur in the use process of products, and the safety performance of vehicle driving is guaranteed; the weights of the products are reduced; and because the connecting mechanism is made of high strengthsteel plates, the wall thicknesses of the products can be reduced, and the weights are reduced.
Description
technical field [0001] The invention belongs to the technical field of automobile wheel end assemblies, and in particular relates to a bimetal composite brake disc and a manufacturing method thereof. Background technique [0002] Because disc brakes have the advantages of sensitive braking and good heat dissipation, they have been widely used in luxury buses, buses and trucks, and the existing drum brakes are gradually replaced by disc brakes. The front disc and the rear drum have become a trend. Subsequent countries require all trailers to switch to disc brakes, and the demand for brake discs will grow rapidly. [0003] Traditionally, brake discs for commercial trucks and luxury coaches and buses have been cast in gray iron, see figure 1 , this product has the following deficiencies during use: [0004] 1. The strength of the gray iron material is low, and generally requires HT250 or even HT200; it will lead to cracking of the flange bottom during the use of the brake dis...
Claims
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