A brake disc with cladding bumps on its surface and its preparation method
A brake disc and cladding technology, which is applied in the field of brake discs, can solve the problems of expensive base material, complicated manufacturing process, and high production cost, and achieve the effects of improving hardness, reducing production cost, and improving service life
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[0045] The present application also provides a method for preparing a brake disc with cladding bumps on the surface described in any one of the above, including the following steps:
[0046] 1) Weigh SiC powder, C powder, B powder, Si powder, Cr powder, Ni powder, W powder, TiC powder and Fe powder according to the formula, and then mix them evenly for later use;
[0047] 2) Put the uniformly mixed powder in step 1) into a ball milling jar, then evacuate the ball milling jar, then add argon gas into the ball milling jar as a protective gas, and add steel balls into the ball milling jar as a grinding body, and Adding ethanol with a volume fraction of 95% to the ball milling tank as a grinding aid, ball milling at a speed of 240r / min for 5-6 hours, and making a slurry after the ball milling is completed;
[0048] 3) Put the slurry prepared in step 2) in a drying oven for drying, then sieve through a sieve with an aperture of 2.3 μm, and the under-sieve is used as cladding powder...
Embodiment 1
[0068] A brake disc with cladding bumps on its surface, comprising a brake disc base 1 and a plurality of cladding bumps 2, a part of the number of cladding bumps 2 is arranged on an annular outer surface of the brake disc base 1 On, the remaining number of cladding bumps 2 are arranged on the other circular outer surface of the brake disc base 1;
[0069] The brake disc base 1 is made of cast iron;
[0070] It also includes a plurality of scoring grooves 3, a part of the number of scoring grooves 3 is arranged on an annular outer surface of the brake disc base 1, and the remaining number of scoring grooves 3 is arranged on the outer surface of the brake disc base 1. On the other circular outer surface, the distance between two adjacent scoring grooves 3 on each circular outer surface of the brake disc base 1 is uniformly distributed at an interval of 45°;
[0071] It also includes a plurality of thermal stress radiating holes 4, which are evenly arranged on the circular oute...
Embodiment 2
[0089] A brake disc with cladding bumps on its surface, comprising a brake disc base 1 and a plurality of cladding bumps 2, a part of the number of cladding bumps 2 is arranged on an annular outer surface of the brake disc base 1 On, the remaining number of cladding bumps 2 are arranged on the other circular outer surface of the brake disc base 1;
[0090] The brake disc base 1 is made of cast iron;
[0091] It also includes a plurality of scoring grooves 3, a part of the number of scoring grooves 3 is arranged on an annular outer surface of the brake disc base 1, and the remaining number of scoring grooves 3 is arranged on the outer surface of the brake disc base 1. On the other circular outer surface, the distance between two adjacent scoring grooves 3 on each circular outer surface of the brake disc base 1 is uniformly distributed at an interval of 45°;
[0092] It also includes a plurality of thermal stress radiating holes 4, which are evenly arranged on the circular outer ...
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Abstract
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