TW201928225A - Manufacturing method of composite material floating disk characterized in that the heat of floating disk can be efficiently released to the outside and the action of the floating disk is more stable and reliable - Google Patents

Abstract

Provided is a manufacturing method of composite material floating disk, which is mainly composed of a brake disk, a disk carrier and a plurality of float buttons. The inner ring side of the brake disk is inwards and extendedly installed with a plurality of the first assembling portions. The disk carrier is constituted by an aluminum substrate and a metal reinforced layer disposed on the surface of the aluminum substrate or a metal reinforced layer of being subjected to a sealing treatment. The periphery of the disk carrier is outwards and extendedly installed with a plurality of the second assembling portions corresponding to the first assembling portions. Each one of the float buttons includes a rivet, a limiting piece and an embedded member. The embedded member is provided with an assembling hole. The rivet is inserted through the first assembling portion of the brake disk, the second assembling portion of the disk carrier, the limiting piece and the assembling hole of the embedded member, so as to make the end of the rivet abutted against the embedded member for achieving the effects of combination and positioning. Thereby, the floating disk can efficiently release heat energy to the outside for achieving the stability and reliability of action.

Description

Composite material floating disk manufacturing method

The invention relates to a method for manufacturing a floating disk of a composite material, in particular to a floating disk having the advantages of light weight, thin shape and sufficient heat dissipation characteristics.

The conventional brake disc is a patent of the Chinese Patent No. M483919, and its main constituent features are: a brake ring, a wear layer, an inner disc and a plurality of connecting members. The brake ring is made of a high strength, high heat resistant aluminum alloy and has a plurality of internally extending first projections. The edges of each of the first projections have respective first recesses. The wear resistant layer is formed of a ceramic material and is coated on the surface of the brake ring. The inner disc is made of an aluminum alloy or a magnesium alloy and has a plurality of second projections extending outward. The edges of each of the second projections have respective second depressions. Each of the second projections corresponds to a first projection. Each of the first recesses forms a connection hole with a corresponding second recess. Each of the connecting members is fixed to a connecting hole such that each of the second protruding portions is joined to the corresponding first protruding portion; and the main disadvantage of the configuration is that the manufacturing process is complicated and the cost is too high.

The use of a composite material disc structure, announcement I312392 is characterized in that it comprises a disc-shaped inner disc body and is made of a light metal material, and at least two outer disc bodies are respectively laminated and bonded to the upper and lower surfaces of the inner disc body respectively by a metallurgical reaction process, and The outer disc body is disc-shaped and made of ferrous metal material, and a shaft hole fixed to the hub is formed at the center of the outer disc body, and penetrates the inner disc body, thereby forming a wear-resistant structure. Lightweight features; the main disadvantage of its composition is that the process is expensive.

In view of the shortcomings derived from the above-mentioned conventional discs, the inventor of the present invention succeeded in researching and developing the floating disc of the composite material.

The object of the present invention is to provide a floating disk with a weight reduction of 20% to 30% and high heat dissipation.

A second object of the present invention is to provide a floating disk of a composite material, which provides a feature that the thicker the metal reinforcing layer is, the more the heat dissipation property is improved.

Another object of the present invention is to provide a floating disc of composite material, the thermal energy of which is efficiently released to the atmosphere or the outside, and the floating disc can be stably operated.

A floating disk of composite material capable of achieving the above object of the invention includes: an outer ring disk having a plurality of first portions extending inwardly from the inner ring side; An inner disk is composed of an aluminum substrate and a metal strengthening layer disposed on the surface of the aluminum substrate or a metal strengthening layer which has been subjected to a sealing treatment, and has a plurality of outer portions extending outwardly corresponding to the first group a second group; a plurality of bonding groups, each bonding group comprising a rivet, a limiting piece and an inlay member, the inlay member is provided with a set of holes, the rivet is inserted through the first group of the outer ring plate, and the inner portion The second group of the disc, the limiting piece and the set of holes of the indented piece, so that the end of the rivet is forced against the inserting member to achieve the combined positioning effect.

1‧‧‧ internal disc

11‧‧‧Aluminum substrate

12‧‧‧Micropores

13‧‧‧Metal strengthening layer

14‧‧‧Riveted perforation

2‧‧‧Outer Ring Disk

3‧‧‧Combination group

31‧‧‧ Rivets

32‧‧‧Limited Movies

33‧‧‧Inlays

4‧‧‧Read disk

41‧‧‧Perforation

42‧‧‧Rives

1 is a front view of a composite disk of a composite material; FIG. 2 is a partially enlarged side cross-sectional view of a portion of FIG. 1; FIG. 3 is a partially enlarged cross-sectional view of the inner disk, showing a surface portion of the aluminum substrate. FIG. 4 is a partially enlarged cross-sectional view of the inner disk, showing a micro-hole forming a metal strengthening layer on the surface and surface of the aluminum substrate; FIG. 5 is a manufacturing method of the floating disk of the composite material Figure 6 is a front view of a floating disk of a composite material according to the present invention; and Figure 7 is a partially enlarged side cross-sectional view of a portion B of Figure 6.

Referring to FIG. 1 to FIG. 4, a schematic front view of a floating disk of a composite material according to the present embodiment mainly includes an inner disk 1 including a floating substrate including an aluminum substrate 11, and an inner disk 1 mounted on the inner disk 1 Outside ring disc 2; and a metal strengthening layer 13 provided on the surface of the aluminum substrate 11 or a metal strengthening layer 13 which has been subjected to sealing (micropore 12 sealing) treatment; and the metal strengthening layer 13 has been sealed (micropore 12 is sealed) The treated metal strengthening layer 13 is partially disposed, and/or the thickness of the metal strengthening layer 13 or the metal strengthening layer 13 which has been subjected to sealing (micropore 12 sealing) is partially different.

The outer ring disc 2 has a plurality of first portions extending inwardly from the inner ring side; the outer ring disc 2 (disc) and the brake pad (pad) have a direct influence on the temperature rise generated during the braking period. When the actual disc brakes, the temperature will rise, which will cause the coefficient of dynamic friction between the disc and the shoe to decrease, and also cause great thermal stress and thermal strain.

The inner disc 1 is composed of an aluminum base material 11 and a metal reinforcing layer 13 provided on the surface of the aluminum base material 11 or a metal reinforcing layer 13 which has been subjected to a sealing treatment, and the outer circumference corresponds to the first group portion outward. The plurality of second portions are extended; wherein the metal strengthening layer 13 is also a porous aluminum oxide layer.

The plurality of bonding groups 3, each of the bonding groups 3 includes a rivet 31, a limiting piece 32 and an inlay member 33. The indenting member 33 is provided with a plurality of holes, and the rivet 31 is passed through the first group of the outer ring plate 2. The second portion of the inner disc 1 , the limiting piece 32 and the set of holes of the engaging member 33 enable the end of the rivet 31 to abut against the inserting member 33 to achieve the combined positioning effect.

In Fig. 4, a partial enlarged cross-sectional view of the inner disk 1 is shown. In the floating disk of the present embodiment, the inner disk 1 includes an aluminum base material 11 and a metal reinforcing layer 13 which has been subjected to a sealing process. Metal reinforcement layer 13 is provided in aluminum The surface of the substrate 11. The thickness of the aluminum base material 11 is preferably 5.0 mm or more, for example, 5.5 mm from the viewpoint of strength. The thickness of the metal strengthening layer 13 is, for example, about 10 μm. Further, the thicker the metal reinforcing layer 13 is, the more the heat dissipation property is improved, but the processing time and the cost accompanying it increase. An aluminum substrate 11 having a relatively high thermal conductivity is present inside the inner disk 1, and a metal reinforcing layer 13 formed of an aluminum oxide film having a relatively high thermal emissivity is provided on the surface of the aluminum substrate 11.

When the brake system is actuated, it is nothing more than the use of frictional force to convert the kinetic energy of the outer ring disc 2 into heat and dissipate into the atmosphere, but if the outer ring disc 2 does not release heat in the atmosphere in time, Most of the thermal energy is also dissipated via the bonding group 3. When such thermal energy is transmitted to the inner disk 1, the thermal energy is efficiently transmitted to the entirety of the aluminum substrate 11 having a high thermal conductivity, and is efficiently radiated by the metal reinforcing layer 13 having a high thermal emissivity. To the outside. Therefore, the inner disk 1 can efficiently release heat generated in the floating disk to the outside, and the operation stability can be made reliable.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method of manufacturing an inner disk 1 of a composite disk which can produce a porous material having irregular and interconnected porous holes and capable of forming a large heat dissipating surface area.

Referring to FIG. 5, the method for manufacturing the inner disk structure of the composite material of the present invention comprises the following steps: Step 1: providing a predetermined ratio of a low temperature alumina powder material component and a bonding material component to form a composite material, wherein The low-temperature alumina powder material component, the joint material component and the aluminum substrate 11 are respectively packaged a plurality of particles having a predetermined particle size, and the heat resistant temperature of the aluminum substrate 11 is higher than a heat resistant temperature of the bonding material component; and step 2: forming the aluminum substrate 11 into a predetermined shape and placing it In a heating device; step three: raising the temperature to a predetermined temperature to cause the aluminum substrate 11 to undergo a reaction and an electrolytic effect, the predetermined temperature being controlled below the melting point of the aluminum substrate 11, and higher than During the temperature range of the melting point of the connecting material component, as the temperature increases, the low-temperature alumina powder material component is ashed and vaporized after being heated, and the joining material component is melted and flowed to be distributed and linked. Between the aluminum substrates 11 and the fourth step: rapid cooling and solidification to form a metal strengthening layer 13, a finished product of the inner disk 1 structure can be obtained.

The invention has the beneficial effects that the low-temperature alumina powder material component, the bonding material component and the aluminum substrate 11 are matched, and the low-temperature alumina powder material component gas can be firstly acted upon by the predetermined temperature. Or ashing, melting the component of the connecting material, and blending the aluminum substrate 11 in a dispersed state after being subjected to electrolysis, and after cooling treatment, forming mutually connected pores and joining the connecting material components in the final product. The connected phase and the randomly distributed and temperature-conducting dispersed phase structure enable the finished product of the internal disk 1 of the structure to be smoothly produced by the manufacturing method.

The joining material component is 1% to 10% of the total weight, and is a substance selected from the group consisting of aluminum, bismuth, antimony, tin, zinc, antimony, And combinations of them.

For example, the inner disk 1 is formed in the following manner. First, an aluminum substrate 11 having a thickness of 5.5 mm was prepared. The aluminum base material 11 is relatively rigid. For example, the purity of aluminum in the aluminum base material 11 is 90.00% by mass or more and less than 99.99% by mass. The aluminum substrate 11 contains impurities, and the surface portion of the aluminum substrate 11 forms a plurality of micropores 12 of the same number or size. The aluminum substrate 11 is also referred to as an aluminum alloy.

Next, the aluminum substrate 11 is anodized or electrolyzed in a heating device. The anodic oxidation or electrolysis is performed by using, for example, a sulfuric acid aqueous solution (or a binder component) having a concentration of 10% by mass or more and 20% by mass or less and a temperature of 20° C. or more and 30° C. or less as an electrolytic solution at a current density DC (Current Density). The aluminum base material 11 is immersed for 2 minutes or more and 30 minutes or less under conditions of 2 A/dm ² or more and 3 A/dm ² or less, or the applied voltage is 10 V or more and 30 V or less, whereby the surface of the aluminum substrate 11 is formed. And a metal strengthening layer 13 is formed on the plurality of micropores 12. Further, such anodization or electrolysis is also referred to as an aluminum oxide film treatment, and a film formed by treatment with an aluminum oxide film is also referred to as a metal strengthening layer 13.

Furthermore, it is also possible to perform an etching treatment after anodization as needed. The thickness of the metal strengthening layer 13 formed by anodization can be increased by the etching treatment. The etching treatment is carried out, for example, by using 10% by mass of phosphoric acid or an aqueous solution of an organic acid such as formic acid, acetic acid or citric acid or a mixed aqueous solution of chromic phosphoric acid as an etching solution. In addition, the above anodizing and etching may be repeated as needed. Reason.

Thereafter, the sealing treatment is performed. For example, the sealing treatment is carried out using pressurized steam or boiling water. Specifically, the sealing treatment can be performed by imparting a plurality of atmospheric pressure water vapor. Alternatively, the sealing treatment may be carried out by heating the boiling water having a pH of about 5.5 to 6.5 for several tens of minutes. Further, in any case, a sealing agent such as nickel acetate may be added. The inner disk 1 is formed as described above.

Further, since the metal reinforcing layer 13 having a high heat emissivity is provided on the surface of the inner disk 1, the heat dissipation property is improved. Since the thermal conductivity of the inner disc 1 is higher than that of the aluminum substrate 11 of the stainless steel material, the heat transmitted to the inner disc 1 spreads to the entire inner disc 1 and is highly efficient in the entire inner disc 1 Ground heat. Here, if attention is paid to the heat emissivity, the average emissivity of the inner disc 1 depends on the thickness of the metal reinforcing layer 13 with respect to the extremely low value of the thermal emissivity of the stainless steel material of about 0.35. Up to about 0.78. Further, the thermal conductivity of the metal strengthening layer 13 formed of the aluminum oxide film was 0.85.

Further, when attention is paid to the thermal conductivity, the thermal conductivity with respect to the stainless steel material is 17 W/mK, and the thermal conductivity of the aluminum base material 11 is 120 W/mK. Furthermore, although the thermal conductivity of pure aluminum is as high as 236 W/mK, pure aluminum does not have sufficient strength.

Further, although aluminum does not have sufficient strength, it is preferable to use aluminum base 11 as a relatively high mechanical strength compared with a stainless steel material. The aluminum base material 11 including the metal reinforcing layer 13 has an aluminum alloy having a tensile strength and an elongation of 310 N/mm ² and 12%, respectively. Alternatively, a 5000 series aluminum alloy may be used as the aluminum substrate 11. For example, as the aluminum base material 11, an aluminum alloy having a tensile strength and an elongation of 190 N/mm ² and 12%, respectively, can also be used. Further, when the thickness of the metal reinforcing layer 13 is 10 μm, the Vickers hardness Hv of the surface of the metal reinforcing layer 13 is about 120, which is higher than the surface Vickers hardness Hv (50) of the usual aluminum substrate 11, and stainless steel. The surface Vickers hardness Hv (140~180) is equivalent.

Since the specific gravity of aluminum (Al: 2.7) is about one-third that of stainless steel (Fe: 7.39) and the inner disc 1 is relatively light, the cost associated with transportation and setting can be suppressed, especially Good land is used in sports bodies with considerable momentum. Further, by providing the metal reinforcing layer 13, the corrosion resistance is also improved.

Further, in the floating disk of the present embodiment, since the inner disk 1 includes the metal reinforcing layer 13, the heat dissipation property of the bonding group 3 between the inner disk 1 and the outer ring disk 2 can be improved.

Please refer to FIG. 6 and FIG. 7 , which is a floating disc of composite material, wherein the floating disc of the composite material is a floating disc type formed by riveting a set of inner disc 1 and outer outer disc disc 2 . In the state of the inner disk 1 and the outer ring disk 2, a hollow hole for lightening and heat dissipation is formed, and a plurality of hollow holes are formed on the inner periphery of the outer ring plate 2 and the outer edge of the inner disk 1 Corresponding semi-circular recessed holes, the inner disc 1 and the outer disc disc 2 are assembled, and the joint group 3 is riveted and combined, and the center perforated peripheral ring of the inner disc 1 is provided with intervening riveting perforations. 14 and the aforementioned reading disk 4 is a ring body mutually riveted, and a center is provided with a a through hole, a plurality of through holes 41 corresponding to the inner disc 1 for riveting the perforations 14 are formed on the periphery of the through hole, and the riveting bolt 42 passes through the perforation 41 of the reading disc 4 and the riveting perforation 14 of the inner disc 1 The two are riveted and integrated, and the portion of the reading disk 4 corresponding to the screw hole of the inner disk 1 is extended by the through hole, so that the reading disk 4 is riveted to the inner disk 1 When the screw holes are fully exposed and unobstructed, and after the detection of the roundness and the yaw degree of the instrument is corrected, the bolts are locked to the wheel by the bolts of the inner disk 1 Circle, according to the completion of its composite material floating disc and rim assembly.

The floating disc of the composite material of the invention is designed according to the structure, and can effectively solve the tolerance values such as the roundness and the left and right yaw degrees of the inner disc 1 and the reading disc 4, so that the magnetoelectric type The wheel speed sensor can obtain a more accurate value when inducing to read the electromotive force change of the reading disc 4, thereby ensuring the accuracy of the electronically controlled braking performance of the ABS braking system, thereby greatly improving the braking safety performance thereof. .

3 to 4 are partially enlarged cross-sectional views showing the floating disk of the embodiment. The inner disk 1 includes the aluminum base material 11 and the metal reinforcing layer 13 having different thicknesses as described above with reference to FIGS. 3 to 4 . As described above, in the inner disk 1, the heat radiation can be improved by thickening the metal reinforcing layer 13 in a region where heat dissipation is particularly required. Further, by partially providing the metal reinforcing layer 13, the surface area of the metal strengthening layer 13 can be increased, and heat dissipation characteristics can be improved.

The invention utilizes electrolysis to produce nano aluminum substrate 11 composite material It was found that different volume percentage porous alumina strengthening layers were successfully produced, and the results of scanning electron microscopy (SEM) analysis showed that the aluminum oxide films were uniformly dispersed in the aluminum substrate 11. The content of the low-temperature alumina powder material added to the composite material increases the aluminum grain size, and the aluminum grain size is about 0.84 μm when the low-temperature alumina powder material component reaches 20% by mass. .

The addition of the nano-alumina particles can effectively strengthen the aluminum substrate 11. When the alumina content is 20% by mass, the surface Vickers hardness is increased to 120 Hv, which is almost 2.5 times the hardness of the aluminum substrate 11 after electrolysis. The tensile strength is enhanced from 74N/mm ² (the aluminum substrate 11 is electrolyzed) to 310 N/mm ² (20 mass% alumina film); compared to other processes, since the electrolysis is a solid phase process, the nanometer can be made. The aluminum oxide film and the aluminum substrate 11 are well bonded, and not only fine crystal strengthening is obtained, but also the dispersibility of the particles between the aluminum substrates 11 is better than the conventional process, so the aluminum-based composite material produced by electrolysis has better Mechanical properties.

In summary, this case is not only innovative in terms of space type, but also can enhance the above-mentioned multiple functions compared with the customary items. It should fully meet the statutory invention patent requirements of novelty and progressiveness, and apply for it according to law. This invention patent application, in order to invent invention, to the sense of virtue.

Claims (2)

A method for manufacturing a composite disk floating disk comprises the following steps: Step 1: providing a predetermined ratio of a low temperature alumina powder material component and a bonding material component to form a composite material, wherein the low temperature alumina powder material group And the aluminum substrate comprises a plurality of particles having a predetermined particle size, and the heat resistance temperature of the aluminum substrate is higher than the heat resistance temperature of the bonding material component; and the second step: aluminum Forming the substrate into a predetermined shape and placing it in a heating device; and step 3: raising the temperature to a predetermined temperature to cause the aluminum substrate to undergo reaction and electrolysis, the predetermined temperature being controlled below the aluminum substrate a melting point, and a temperature range higher than a melting point of the component of the bonding material, the component of the low-temperature alumina powder material is ashed and vaporized when heated, and the component of the bonding material is melted and flowed. The finished product of the inner disc structure can be obtained by distributing and joining between the aluminum substrates; and step four: rapid cooling and solidification to form a metal strengthening layer. The method for manufacturing a composite disk of the composite material of claim 1, wherein the inner disk structure is an aluminum substrate and a metal reinforcing layer provided on a surface of the aluminum substrate or a metal reinforcement which has been subjected to a sealing treatment. The layer is composed of a layer of porous alumina.