公开(公告)号：US20240229194A9

公开(公告)日：2024-07-11

申请号：US18547174

申请日：2022-02-22

Applicant: Brembo S.p.A. ,  ENEA, Agenzia Nazionale Per Le Nuove Tecnologie L’energia E Lo Sviluppo Economico Sostenible

Inventor： Andrea MILANESI ,  Giuseppe MAGNANI ,  Federica BURGIO

IPC: C22C1/10 ,  C23C16/26 ,  F16D65/02 ,  F16D65/12

CPC classification number: C22C1/1073 ,  C23C16/26 ,  F16D65/126 ,  F16D2065/132 ,  F16D2200/003 ,  F16D2200/0047 ,  F16D2250/0015

Abstract: A method for making a braking band (2) for a brake disc (1) for a disc brake, comprising the following steps: a) preparing a mold (10) having an inner cavity (11), which comprises a first portion (11a) of a shape corresponding to the braking band (2) to be made; b) preparing a band preform (20) comprising a central preform (200), an upper outer preform (201) and a lower outer preform (202), said central preform (200) being made of porous ceramic material comprising silicon carbide (SiC), said upper outer preform (201) and lower outer preform (202) being made of porous ceramic material comprising silicon carbide (SiC) and infiltrated with silicon (SiC+Si), wherein a carbon barrier layer (201a, 200a, 200b, 202a) made of carbon is interposed between the upper outer preform (201) and the central preform (200) and between the lower outer preform (202) and the central preform (200), said preforms (200, 201, 202) having the shape of the braking band (2) to be made; c) placing said band preform (20) inside the mold at the first portion (11a) of said inner cavity (11); and d) injecting a liquid or semi-solid aluminum alloy inside the entire inner cavity (11) of the mold (11) to infiltrate the central preform (200) of said band preform (20) made of porous ceramic material with said aluminum alloy, obtaining at the first portion (11a) an aluminum metal matrix composite reinforced by said central preform (200) which defines the braking band (2) to be made. A braking band and a brake disc are made with at least the aforesaid method.

公开(公告)号：US20240125367A1

公开(公告)日：2024-04-18

申请号：US18547354

申请日：2022-02-22

Applicant: Brembo S.p.A. ,  ENEA, Agenzia Nazionale Per Le Nuove Tecnologie, L’energia E Lo Sviluppo Economico Sostenible

Inventor： Andrea MILANESI ,  Giuseppe MAGNANI ,  Federica BURGIO

IPC: F16D65/12 ,  B22D19/00 ,  B22D21/00

CPC classification number: F16D65/125 ,  B22D19/0081 ,  B22D21/007 ,  F16D2065/132 ,  F16D2200/003 ,  F16D2200/0039 ,  F16D2200/0082

Abstract: A method for making a braking band (2) for a brake disc (1) for a disc brake, comprising the following steps: a) preparing a mold (10) having an inner cavity (11), which comprises a first portion (11a) of a shape corresponding to the braking band (2) to be made; b) preparing a band preform (20) comprising a central layer (200) made of porous ceramic material comprising silicon carbide (SiC), an upper outer layer (201) and a lower outer layer (202), said upper outer layer (201) and said lower outer layer (202) being made of porous ceramic material comprising silicon carbide (SiC) and infiltrated with silicon (SiC+Si), said upper outer layer (201) and said bottom outer layer (202) being arranged in an opposing way and on opposite sides of the central layer (200); c) placing said band preform (20) inside the mold at the first portion (11a) of said inner cavity (11); and d) injecting a liquid or semi-solid aluminum alloy inside the entire inner cavity (11) of the mold (11) so as to infiltrate only the central layer (200) of said band preform (20) made of porous ceramic material with said aluminum alloy, obtaining at the first portion (11a) an aluminum metal matrix composite reinforced by said central preform (200) which defines the braking band (2) to be made. A braking band and a brake disc are made at least with the aforesaid method.

公开(公告)号：US20240132999A1

公开(公告)日：2024-04-25

申请号：US18547174

申请日：2022-02-22

Applicant: Brembo S.p.A. ,  ENEA, Agenzia Nazionale Per Le Nuove Tecnologie L’energia E Lo Sviluppo Economico Sostenible

Inventor： Andrea MILANESI ,  Giuseppe MAGNANI ,  Federica BURGIO

IPC: C22C1/10 ,  C23C16/26 ,  F16D65/02 ,  F16D65/12

CPC classification number: C22C1/1073 ,  C23C16/26 ,  F16D65/126 ,  F16D2065/132 ,  F16D2200/003 ,  F16D2200/0047 ,  F16D2250/0015

Abstract: A method for making a braking band (2) for a brake disc (1) for a disc brake, comprising the following steps: a) preparing a mold (10) having an inner cavity (11), which comprises a first portion (11a) of a shape corresponding to the braking band (2) to be made; b) preparing a band preform (20) comprising a central preform (200), an upper outer preform (201) and a lower outer preform (202), said central preform (200) being made of porous ceramic material comprising silicon carbide (SiC), said upper outer preform (201) and lower outer preform (202) being made of porous ceramic material comprising silicon carbide (SiC) and infiltrated with silicon (SiC+Si), wherein a carbon barrier layer (201a, 200a, 200b, 202a) made of carbon is interposed between the upper outer preform (201) and the central preform (200) and between the lower outer preform (202) and the central preform (200), said preforms (200, 201, 202) having the shape of the braking band (2) to be made; c) placing said band preform (20) inside the mold at the first portion (11a) of said inner cavity (11); and d) injecting a liquid or semi-solid aluminum alloy inside the entire inner cavity (11) of the mold (11) to infiltrate the central preform (200) of said band preform (20) made of porous ceramic material with said aluminum alloy, obtaining at the first portion (11a) an aluminum metal matrix composite reinforced by said central preform (200) which defines the braking band (2) to be made. A braking band and a brake disc are made with at least the aforesaid method.