CN205047705U - Light metallic composite brake disc of column pottery reinforcing - Google Patents
Light metallic composite brake disc of column pottery reinforcing Download PDFInfo
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- CN205047705U CN205047705U CN201520681126.XU CN201520681126U CN205047705U CN 205047705 U CN205047705 U CN 205047705U CN 201520681126 U CN201520681126 U CN 201520681126U CN 205047705 U CN205047705 U CN 205047705U
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Abstract
The utility model relates to a light metallic composite brake disc of column pottery reinforcing, its characterized in that, it includes metal substrate, metal substrate is equipped with one or two friction surface courses, the friction surface course is the light metallic composite of column pottery reinforcing friction surface course. The utility model discloses full play industrial ceramics high rigidity, high abrasion, high temperature resistant, and light metallic light, subtract the characteristics heavy, that intensity is high, toughness is good, through suitable technology, prepare the industrial ceramics and become to have the column pottery, then compound with the light metal, prepare the novel brake disc that becomes to have concurrently both characteristics. Can be satisfied with and contain but do not confine friction, the braking demand of equipment movement equipment such as aircraft, track transportation vehicles, highway transportation vehicles, boats and ships to.
Description
Technical field
The utility model relates to columnar ceramic and strengthens light metal composite brake dish, belongs to friction, brake field.
Background technique
Along with the fast development of modern space flight and aviation, high-speed railway, highway communication and field of wind power generation, the weight of friction clutch and braking system, safety, vibration & noise problem are more and more paid close attention to.Particularly under high-speed overload operating mode, under the prerequisite not affecting friction clutch and braking ability, more and more higher to friction clutch and braking system loss of weight, damping, noise reduction, safe, comfortable, wear-resisting requirement.Some functions and structure-integrated new material, because the friction of its significant damping, noise reduction, light weight and brilliance, polishing machine have attracted the concern of Chinese scholars.
Existing ferrous materials brake disc, carbon/carbon compound material brake disc, carbon/ceramic composite material brake disc, ceramic particle strengthen Al alloy composite brake disc, foamed ceramics strengthens Al alloy composite brake disc and be coated with coating rubbing-layer in metal surface to improve the brake disc of wear resistance, though respectively there are its pluses and minuses, seeking the good brake disc of a kind of overall performance still becomes the focus studied in the industry.
Model utility content
The purpose of this utility model is to provide a kind of columnar ceramic to strengthen light metal composite brake dish, can be satisfied with including but not limited to the friction of the movable machinery equipment such as aircraft, rail traffic vehicles, road traffic vehicle, boats and ships, braking requirement.
To achieve these goals, the technological scheme taked of the utility model is as follows:
A kind of columnar ceramic strengthens light metal composite brake dish, and its key technology point is, it comprises metallic matrix, and described metallic matrix is provided with one or two friction surface layer, and described friction surface layer is that columnar ceramic strengthens light metal composite material friction surface layer.
Further improve as the utility model, be selected from arbitrary following structure:
A. described metallic matrix is provided with a friction surface layer, and described metallic matrix comprises metal dish and is arranged at the radiating fin of various known form of described metal dish side, and described friction surface layer and described radiating fin are separately positioned on described metal dish both sides;
B. described metallic matrix is provided with two friction surface layers, and described metallic matrix comprises metal dish, and described two friction surface layers are separately positioned on described metal dish both sides, are commonly called as entire body dish structure brake disc;
C. described metallic matrix is provided with two friction surface layers, described metallic matrix comprises two metal dish and connects the connecting body of described two metal dish, described two friction surface layers are separately positioned on the outside of described metal dish, described connecting body is the radiating fin of various known form, is commonly called as venting plate structure brake disc.
Further improve as the utility model, friction surface layer offers ventilation slot and/or vent hole, described ventilation slot is offered along the radial direction of friction surface layer, described ventilation slot is straight line or curve shape in radial direction, described vent hole is offered along the axial direction of friction surface layer, and described vent hole is through hole and/or non through hole.
Further improve as the utility model, it is that the columnar ceramic of 1 ~ 9mm strengthens light metal composite material that described friction surface layer comprises thickness that one or more plane lays.
Further improve as the utility model, described columnar ceramic strengthens the light metal that light metal composite material comprises columnar ceramic and is combined with each other with described columnar ceramic, and described columnar ceramic is formed by the solid or hollow ceramics pole cycle of various known form or lack of alignment.The sectional area of the ceramics pole of described columnar ceramic is 1 ~ 16mm2, high 1 ~ 9mm.
Further improve as the utility model, described columnar ceramic accounts for 5 ~ 60% of composite material friction surface layer area, and light metal accounts for 95 ~ 40% of brake disc composite material friction surface layer area.
Further improve as the utility model, described columnar ceramic is made by being selected from any one or more complex phase ceramic, Sialon (Sialon) pottery of carbide ceramics, nitride ceramics, oxide ceramics and ceramet.
Further improve as the utility model, the light metal that described columnar ceramic strengthens in light metal composite material comprises titanium, magnesium, Aluminum-aluminum alloy, and adds light metal and the alloy thereof of other Material reinforcement.The light metal that described interpolation other materials strengthens and alloy thereof are selected from the light metal and alloy thereof that add the enhancing of graphite, CNT or various ceramic particle.
Further improve as the utility model, the material of described metallic matrix can be various ferrous metal, light metal titanium, magnesium, Aluminum-aluminum alloy, and adds light metal and the alloy thereof of other Material reinforcement.The light metal that described interpolation other materials strengthens and alloy thereof are selected from the light metal and alloy thereof that add the enhancing of graphite, CNT or various ceramic particle.
Further improve as the utility model, by following any one method preparation:
Method one:
Columnar ceramic is put into mould, and add the light metal after heating, one or more once-throughs in the techniques such as extruding, die forging, casting complete.
Method two:
The metal grill of columnar ceramic and enhancing metallic matrix is put into mould, and add the light metal after heating, one or more once-throughs in the techniques such as extruding, die forging, casting complete.
Method three:
A. first columnar ceramic is put into mould, add the light metal after heating, one or more in the techniques such as extruding, die forging, casting are prepared into composite material friction surface layer;
B. then by the metallic matrix material material after heating, put into mould, one or more in the techniques such as extruding, die forging, casting are prepared into metallic matrix;
C. last one or more post formings by composite material friction surface layer and metallic matrix by inlaying, welding, in composite casting, the technique such as riveted joint complete.
Method four:
A. first columnar ceramic is put into mould, add the light metal after heating, one or more in the techniques such as extruding, die forging, casting are prepared into composite material friction surface layer;
B. the metal grill strengthening metallic matrix is put into mould, add the metallic matrix material material after heating, one or more in the techniques such as extruding, die forging, casting are prepared into the metallic matrix strengthened with metal grill;
C. last one or more post formings by composite material friction surface layer and metallic matrix by inlaying, welding, in composite casting, the technique such as riveted joint complete.
Described metal grill is selected from seal ring thickness 0.5 ~ 3mm, height 2 ~ 30mm, every square centimeter of grid-shaped metal having 1 ~ 30 grid.
Compared with prior art, the beneficial effect acquired by the utility model is as follows:
1. the utility model gives full play to industrial ceramics high hardness, high abrasion, high temperature resistant, and light metal light weight, loss of weight, intensity are high, the feature of good toughness, by suitable technique, industrial ceramics is prepared into there is columnar ceramic, then with light metal compound, the novel brake disc having both characteristics concurrently is prepared into.
2. the friction surface layer of the utility model brake disc is composited by the solid or hollow ceramics pole of various known form and the light metal be combined with each other with described columnar ceramic or its alloy.Columnar ceramic is in two-dimensional space or periodic arrangement, or lack of alignment.Because columnar ceramic biscuit obtains through forming modes such as slip casting, extruding, dry-pressing, isostatic pressed, so the ceramics pole after sintering to have sidewall smooth, be convenient to the advantage such as liquid metal flow, filling densification of casting, be suitable for various extruding, die forging, casting technique, and the casting defect of composite material can be reduced, promote yield rate and combination property.
3. the ability that the excellent plasticity of metal, intensity are worn and torn with columnar ceramic reinforcement bearing load, friction resistant can combine by the composite brake dish that the utility model relates to, make it have good anti-character of heat-fading and frictional behaviour, can bear very large static load and cyclic loading for a long time, the friction clutch in Aero-Space, track and the field such as highway communication, machinery, braking have good application prospect.
4. the brake disc that provides of the utility model, with existing Composition brake shoes, powder metallurgy brake pad and other as carbon/carbon brake lining, carbon/pottery brake lining etc. make antithesis carry out friction catch time, stable friction factor, between 0.2 ~ 0.5, can meet the usage requirement of aircraft, rail traffic vehicles, road traffic vehicle, various movable machineries etc. completely.
Accompanying drawing explanation
Accompanying drawing 1-1 is the structural representation of the utility model embodiment 1;
Accompanying drawing 1-2 is the side view of the utility model embodiment 1;
Accompanying drawing 2-1 is the structural representation of the utility model embodiment 2;
Accompanying drawing 2-2 is the sectional view of the utility model embodiment 2;
Accompanying drawing 3-1 is the structural representation of the utility model embodiment 3;
Accompanying drawing 3-2 is the side view of the utility model embodiment 3;
Accompanying drawing 4 comprises the structural representation of polylith composite layer block for the utility model friction surface layer;
Accompanying drawing 5-1 is the structural representation that the utility model friction surface layer offers lineal shape ventilation slot;
Accompanying drawing 5-2 is the structural representation that the utility model friction surface layer offers curvilinerar figure ventilation slot;
Accompanying drawing 6-1 is the structural representation that the utility model friction surface layer offers non through hole vent hole;
Accompanying drawing 6-2 is A-A sectional view in 6-1;
Accompanying drawing 6-3 is the structural representation that the utility model friction surface layer offers through hole vent hole;
Accompanying drawing 6-4 is 6-3 sectional view;
Accompanying drawing 7 is the structural representation of the utility model columnar ceramic;
Accompanying drawing 8 is the various cylinder body shape schematic diagram of the utility model composition columnar ceramic;
In the accompanying drawings:
1 metallic matrix, 2 friction surface layers, 3 radiating fin, 4 ventilation slots, 5 vent holes.
Embodiment
Below in conjunction with drawings and Examples, detailed further describing is carried out to the utility model.
Following examples columnar ceramic used strengthens the light metal that light metal composite material comprises columnar ceramic and is combined with each other with described columnar ceramic, as depicted in figures 7 and 8, described columnar ceramic be the sectional area 1 ~ 16mm2 of periodic arrangement or lack of alignment on two-dimensional directional, the various known form of high 1 ~ 9mm, one or more permutation and combination that are solid or hollow ceramic post.Described columnar ceramic accounts for 5 ~ 60% of composite material friction surface layer area, and light metal accounts for 95 ~ 40% of brake disc composite material friction surface layer area.
As required, friction surface layer can be offered ventilation slot 4 in following examples, as shown in accompanying drawing 5-1, ventilation slot 4 is rectilinear form in radial direction, and as shown in accompanying drawing 5-2, ventilation slot 4 is curve shape in radial direction.
As required, friction surface layer 2 can be offered vent hole 5 in following examples, as shown in accompanying drawing 6-1 and 6-2, vent hole 5 is non through hole form, and as shown in accompanying drawing 6-3 and 6-4, vent hole 5 is through-hole form.
Single rubbing surface structure brake disc of embodiment 1 post forming
Shown in accompanying drawing 1-1 and 1-2, a kind of columnar ceramic that the present embodiment provides strengthens light metal composite brake dish, it comprises metallic matrix 1, described metallic matrix 1 is provided with a friction surface layer 2, described metallic matrix 1 comprises metal dish and is arranged at the radiating fin 3 of described metal dish side, described friction surface layer 2 and described radiating fin 3 are separately positioned on the both sides of described metal dish, namely the side of metal dish is provided with friction surface layer 2, there is radiating fin 3 side, the back side that described metal dish is relative with friction surface layer 2.Described friction surface layer 2 is columnar ceramic enhancing light metal composite material friction surface layer, two pieces of columnar ceramic that friction surface layer 2 is laid by plane strengthen light metal composite materials and form, and the ventilation slot 4 that two pieces of composite material friction surface layers 2 are straight line by two radial direction shapes is kept apart.
In the present embodiment, columnar ceramic is column 95 aluminium oxide ceramics of periodic arrangement, the light metal be combined with each other with described columnar ceramic in the present embodiment is 2024 aluminum alloys, metallic matrix 1 in the present embodiment is the A350 magnesium alloy brake disc metallic matrix of built-in ferrous metal grid, makes especially by following methods:
The first step: by designing requirement, column 95 aluminium oxide ceramics of the periodic arrangement of ceramics Co., Ltd in Yixing City hundred million will be purchased from, prepare corresponding shape by the size of brake disc drawing requirement, also can carry out corresponding surface treatment to ceramics pole surface as required;
Second step: 95 aluminium oxide ceramics of the periodic arrangement of well cutting corresponding size shape are put into the forging mould being preheated to 450 ± 10 DEG C;
3rd step: 2024 aluminum alloys that will be heated to 465 ± 10 DEG C, by applying the pressure of 40 ~ 70MPa, combine with 95 aluminium oxide ceramics of the periodic arrangement putting into forging mould, 95 aluminium oxide ceramics forming periodic arrangement strengthen 2024 aluminum alloy friction surface layers.This friction surface layer can be full circle, also can be other shapes various according to designing requirement.As required, on friction surface layer, integrally can forge vent hole, the riveted holes of various shape, for subsequent use after heat treatment, machining;
4th step: the ferrous metal grid being used for strengthening light metal intensity is put into forging mould, by the A350 magnesium alloy of preheating, by the method for die forging, is made into integration with ferrous metal grid the brake disc metallic matrix that there is various setting shape radiating fin at the back side.Brake disc metallic matrix also according to designing requirement, can integrally forge the vent hole of various shape, riveted holes, for subsequent use after heat treatment, machining;
5th step: by inlaying, friction welding or riveted joint in one or kinds of processes, the friction surface layer prepared and brake disc metallic matrix are combined, after retrofit, make finished product.
Single friction surface layer structure brake disc prepared by the present embodiment, compare traditional ferrous materials brake disc loss of weight about 60%, compare other materials brake disc, preparation process is more simple, machining allowance is less, cost is lower, industrialization is produced and is more prone to, and can meet corresponding friction, damped condition requirement well.Under current energy-saving and emission-reduction, lightweight overall background, the favorable substitutes of ferrous materials brake disc traditional beyond doubt.
Embodiment's 2 one-time formed pairs of friction surface layer entire body dish structure brake discs
Shown in accompanying drawing 2-1 and 2-2, a kind of columnar ceramic that the present embodiment provides strengthens light metal composite brake dish, it comprises metallic matrix 1, described metallic matrix 1 is provided with two friction surface layers 2, described metallic matrix 1 comprises metal dish, described two friction surface layers 2 are separately positioned on described metal dish both sides, namely two friction surface layers by between metal dish connect together.Friction surface layer 2 strengthens light metal composite material by a monoblock columnar ceramic and forms.
The present embodiment columnar ceramic is the column silicon nitride ceramics of lack of alignment, and the light metal be combined with each other with described columnar ceramic and metal matrix material are 7075 aluminum alloys, and concrete preparation method is as follows:
The first step: by designing requirement, by being purchased from the column silicon nitride ceramics of Shijiazhuang favour containing the lack of alignment of sealing material factory, being prepared into corresponding brake disc required size shape on request, also can carrying out corresponding surface treatment to ceramic surface as required;
Second step: according to the shape of brake disc, designs the mould of the two friction surface layer entire body dish structure brake disc of high pressure die casting.This mould includes the die cavity placing lack of alignment column silicon nitride ceramics, by the column silicon nitride ceramics of the lack of alignment of corresponding size shape, puts into the die cavity of pressure casting machine mould;
3rd step: by setting technique, by 7075 aluminum alloys of melting, with the pressure of 5 ~ 100MPa, extrude enter be placed with lack of alignment column silicon nitride ceramics, be evacuated, be preheated in the die cavity of die casting die of 150 ~ 300 DEG C.After cooling, obtain two friction surface layers be by between metal connect two friction surface layer entire body dish structure brake discs together;
4th step: the column silicon nitride ceramics of the lack of alignment obtained by pressure casting process is strengthened the two friction surface layer entire body dish structure brake disc of 7075 aluminum alloys, heat-treat by the corresponding heat treatment process of 7075 aluminum alloy;
5th step: the column silicon nitride ceramics of the lack of alignment after heat-treating by corresponding technique is strengthened the two friction surface layer entire body dish structure brake disc of 7075 aluminum alloys, obtain finished product after retrofit.
Use two friction surface layer entire body dish structure brake discs prepared by this method, compare traditional ferrous materials brake disc loss of weight about 60%, compare other materials brake disc, preparation process is more simple, machining allowance is less, cost is lower, industrialization is produced and is more prone to, and can meet corresponding friction, damped condition requirement well.Under current energy-saving and emission-reduction, lightweight overall background, the favorable substitutes of ferrous materials brake disc traditional beyond doubt.
Embodiment's 3 one-time formed pairs of friction surface layer venting plate structure brake discs
Shown in accompanying drawing 3-1 and 3-2, a kind of columnar ceramic that the present embodiment provides strengthens light metal composite brake dish, it comprises metallic matrix 1, described metallic matrix 1 is provided with two friction surface layers 2, described metallic matrix 1 comprises two metal dish and connects the radiating fin 3 of described two metal dish, and described two friction surface layers 2 are separately positioned on the outside of described metal dish.Friction surface layer 2 strengthens light metal composite material by a monoblock columnar ceramic and forms.
The columnar ceramic of the present embodiment is the column silicon carbide ceramics of periodic arrangement, and the light metal be combined with each other with described columnar ceramic and metal matrix material are ZL111 aluminum alloy.The present embodiment forms with one piece low-pressure die casting, specific as follows:
The first step: by designing requirement, by being purchased from the column silicon carbide ceramics of the periodic arrangement of the large Correspondent new material Co., Ltd in east, Shijiazhuang, being prepared into brake disc required size shape on request, also can carrying out corresponding surface treatment to ceramic surface as required;
Second step: according to the shape of brake disc, designing can the mould of the two friction surface layer venting plate structure brake disc of low-pressure die casting.This mould includes the die cavity of column silicon carbide ceramics and the two friction surface layer venting plate structure brake disc core used of preparation placing periodic arrangement;
3rd step: by the column silicon carbide ceramics of corresponding size shape periodic arrangement and core in order and require the die cavity putting into low-pressure casting machine mould successively;
4th: according to setting technique, by the ZL111 aluminum alloy of melting, low pressure is cast into and is placed with in the column silicon carbide ceramics of periodic arrangement and the die cavity of core.Its concrete technology is as follows: brake disc die temperature 200 ~ 500 DEG C, during molten aluminium alloy temperature 650 ~ 750 DEG C, by the column silicon carbide ceramics of periodic arrangement and core in order and require that the die cavity putting into low-pressure casting machine mould successively starts low-pressure die casting.Rise the liquid stage, 1 ~ 12 second pressing time, fill the type stage, the metal bath surface rate of climb 1 ~ 10mm/s, the molten aluminium alloy weight of filling type is 1 ~ 10kg/s, filling time 2 ~ 20 seconds, and filling type pumping rate is 0.004 ~ 0.030MPa/s; Pressurization stages, is filling repressurize 0.010 ~ 0.035MPa on type supercharging value basis, 5 ~ 60 seconds dwell times; Pressurize solidification stages, the time is 20 ~ 500 seconds.After cooling, obtain two friction surface layers be by between metal and radiating fin connect two friction surface layer venting plate structure brake discs together;
5th step: the column silicon carbide ceramics of the periodic arrangement obtained by low-pressure casting process is strengthened the two friction surface layer venting plate structure brake disc of ZL111 aluminum alloy, heat-treat by the corresponding heat treatment process of ZL111 aluminum alloy;
6th step: the column silicon carbide ceramics of the periodic arrangement after heat-treating by corresponding technique is strengthened the two friction surface layer venting plate structure brake disc of ZL111 aluminum alloy, obtain finished product after retrofit.
Use two friction surface layer venting plate structure brake discs prepared by this method, compare traditional ferrous materials brake disc loss of weight about 60%, compare other materials brake disc, preparation process is more simple, machining allowance is less, cost is lower, industrialization is produced and is more prone to, and can meet corresponding friction, damped condition requirement well.Under current energy-saving and emission-reduction, lightweight overall background, the favorable substitutes of ferrous materials brake disc traditional beyond doubt.
Two friction surface layer venting plate structure brake discs of embodiment 4 post forming
A kind of columnar ceramic that the present embodiment provides strengthens light metal composite brake dish, it comprises metallic matrix 1, described metallic matrix 1 is provided with two friction surface layers 2, described metallic matrix 1 comprises two metal dish and connects the radiating fin 3 of described two metal dish, and described two friction surface layers 2 are separately positioned on the outside of described metal dish.Friction surface layer 2 is anticipated as shown in Figure 4, strengthens light metal composite material friction surface layer form by 9 pieces of columnar ceramic.
The columnar ceramic of the present embodiment is the column silicon carbide ceramics of lack of alignment, and the light metal be combined with each other with described columnar ceramic is ZL117 aluminum alloy.The present embodiment forms with composite casting, specific as follows:
The first step: by designing requirement, is divided into 9 equal portions by brake disc friction surface layer, and prepares the column silicon carbide ceramics of the lack of alignment of respective shapes, also can carry out corresponding surface treatment to ceramic surface as required;
Second step: by size, the profile design die casting die of the brake disc friction surface layer after 9 equal portions;
3rd step: by preparing the column silicon carbide ceramics of lack of alignment of corresponding size, shape, put into preheated die casting die.Then by setting technique, by the ZL117 aluminum alloy of melting, press-in is placed with in the die cavity of column silicon carbide ceramics of lack of alignment.After cooling, obtain the friction surface layer of corresponding size, take out for subsequent use;
4th step: according to size, the shape of brake disc, designing can the sand mo(u)ld of the two friction surface layer venting plate structure brake disc of gravity casting.The column silicon carbide ceramics including placement 9 pieces of lack of alignment in this sand mo(u)ld strengthens the die cavity of ZL117 aluminum alloy friction surface layer and the two friction surface layer venting plate structure brake disc core used of preparation;
5th step: the column silicon carbide ceramics of the lack of alignment prepared is strengthened ZL117 aluminum alloy friction surface layer and prepare the die cavity that two friction surface layer venting plate structure brake disc core used puts into gravity casting brake disc sand mo(u)ld, pour into the ZL116 aluminum alloy of melting, after cooling, obtain two friction surface layer venting plate structure brake discs that obtained by composite casting technology, that be made up of the two friction surface layer of column silicon carbide ceramics enhancing ZL117 aluminum alloy and the ZL116 metallic matrix of lack of alignment;
6th step: the venting plate structure brake disc column silicon carbide ceramics of the lack of alignment obtained by composite casting technology being strengthened the two friction surface layer of ZL117 aluminum alloy and ZL116 metallic matrix composition, heat-treats by the corresponding heat treatment process of ZL116;
7th step: the venting plate structure brake disc column silicon carbide ceramics of the lack of alignment after heat-treating by corresponding technique being strengthened the two friction surface layer of ZL117 aluminum alloy and ZL116 metallic matrix composition, obtains finished product after retrofit.
Use two friction surface layer venting plate structure brake discs prepared by this method, compare traditional ferrous materials brake disc loss of weight about 60%, compare other materials brake disc, preparation process is more simple, machining allowance is less, cost is lower, industrialization is produced and is more prone to, and can meet corresponding friction, damped condition requirement well.Under current energy-saving and emission-reduction, lightweight overall background, the favorable substitutes of ferrous materials brake disc traditional beyond doubt.
The one-time formed single rubbing surface structure brake disc of embodiment 5
A kind of columnar ceramic that the present embodiment provides strengthens light metal composite brake dish, it comprises metallic matrix 1, described metallic matrix 1 is provided with a friction surface layer 2, described metallic matrix 1 comprises metal dish and is arranged at the radiating fin 3 of described metal dish side, described friction surface layer 2 and described radiating fin 3 are separately positioned on the both sides of described metal dish, namely the side of metal dish is provided with friction surface layer 2, there is radiating fin 3 side, the back side that described metal dish is relative with friction surface layer 2.Described friction surface layer 2 is columnar ceramic enhancing light metal composite material friction surface layer.
The columnar ceramic of the present embodiment is the column silicon carbide ceramics of periodic arrangement, and the light metal be combined with each other with described columnar ceramic and metal matrix material are Ti-6Al-4V titanium alloy.Concrete grammar is as follows:
The first step: by designing requirement, prepares the column silicon carbide ceramics of periodic arrangement of corresponding size, shape, also can carry out corresponding surface treatment to ceramic surface as required;
Second step: according to Ti alloy casting characteristic and method, design, prepare vent hole, the riveted holes that integrally can cast out various shape, there is again the casting mould of various setting shape radiating fin at the back side;
3rd step: the column silicon carbide ceramics of two-dimensional structure periodic arrangement is put into casting mould;
4th step: use traditional gravity foundry technology, by the Ti-6Al-4V titanium alloy of melting, be cast in the casting mould of the column silicon carbide ceramics being placed with periodic arrangement, the silicon carbide ceramics skeleton of periodic arrangement and Ti-6Al-4V titanium alloy are combined, the column silicon carbide ceramics forming periodic arrangement strengthens Ti-6Al-4V titanium alloy list rubbing surface structure brake disc.This brake disc friction surface layer can be full circle, also can be other shapes various according to designing requirement;
5th step: the column silicon carbide ceramics of shaping for the one-step casting periodic arrangement completed is strengthened Ti-6Al-4V titanium alloy list friction surface layer structure brake disc, heat-treat by the heat treatment process of Ti-6Al-4V titanium alloy;
6th step: the silicon carbide ceramics of the periodic arrangement after the heat treatment process by Ti-6Al-4V titanium alloy being heat-treated strengthens Ti-6Al-4V titanium alloy list friction surface layer structure brake disc, makes finished product after retrofit.
Use single friction surface layer structure brake disc prepared by this method, compare traditional ferrous materials brake disc not only loss of weight about 60%, and intensity is higher, durable temperature is higher.Compare other materials, such as carbon/carbon, carbon/ceramic Moving plate, preparation process is more simple, machining allowance less, cost is lower, industrialization produces and be more prone to.Compare other light metal composite brake dishes, such as aluminum alloy, composite material of magnesium alloy brake disc, the friction under more complex working condition, higher temperature condition, brake request can be tolerated.Under current energy-saving and emission-reduction, lightweight overall background, the favorable substitutes of ferrous materials brake disc traditional beyond doubt.
Embodiment 6 once-through metal grill strengthens single friction surface layer structure brake disc of light metal matrix
A kind of columnar ceramic that the present embodiment provides strengthens light metal composite brake dish, it comprises metallic matrix 1, described metallic matrix 1 is provided with a friction surface layer 2, described metallic matrix 1 comprises metal dish and is arranged at the radiating fin 3 of described metal dish side, described friction surface layer 2 and described radiating fin 3 are separately positioned on described metal dish both sides, namely the side of metal dish is provided with friction surface layer 2, there is radiating fin 3 side, the back side that described metal dish is relative with friction surface layer 2.Described friction surface layer 2 is columnar ceramic enhancing light metal composite material friction surface layer.
The columnar ceramic of the present embodiment is column 95 aluminium oxide ceramics of lack of alignment, and the light metal be combined with each other with described columnar ceramic and metal matrix material are A350 magnesium alloy.Concrete grammar is as follows:
The first step: by designing requirement, prepares column 95 aluminium oxide ceramics of the lack of alignment of corresponding size shape, also can carry out corresponding surface treatment to ceramic surface as required;
Second step: according to the size shape of brake disc, design can one die forging forging mould.This forging mould includes the die cavity of column 95 aluminium oxide ceramics placing lack of alignment and the ferrous metal grid strengthening metallic matrix, and prefabricated vent hole, ventilation slot module, the patrix of mould is prepared into can the shape of one die forging various setting shape radiating fin and vent hole;
3rd step: column 95 aluminium oxide ceramics of lack of alignment and the ferrous metal grid that is used for strengthening A350 magnesium alloy are put into forging mould successively, with contour forging technique, the A350 magnesium alloy of uniform temperature will be heated to, forge and be placed with in column 95 aluminium oxide ceramics of lack of alignment and the mold cavity of ferrous metal grid, column 95 aluminium oxide ceramics of A350 magnesium alloy and lack of alignment and ferrous metal grid are combined, column 95 aluminium oxide ceramics forming existing lack of alignment strengthens A350 magnesium alloy friction surface layer, ferrous metal grid is had again to strengthen the radiating fin of A350 magnesium alloy metallic matrix and various shape in metallic matrix, the integrated type list friction surface layer structure brake disc of ventilation slot and vent hole,
4th step: strengthen A350 magnesium alloy integrated type list friction surface layer structure brake disc by what obtained by contour forging technique by column 95 aluminium oxide ceramics of lack of alignment, heat-treat by relevant technological;
5th step: by the A350 magnesium alloy integrated type list friction surface layer structure brake disc after heat-treating by relevant technological, make finished product after retrofit.
Use single friction surface layer structure brake disc prepared by this method, compare traditional ferrous materials brake disc loss of weight about 65%, compare other materials brake disc, preparation process is more simple, intensity is higher, machining allowance is less, cost is lower, industrialization is produced and is more prone to, and can meet corresponding friction, damped condition requirement well.Under current energy-saving and emission-reduction, lightweight overall background, the favorable substitutes of ferrous materials brake disc traditional beyond doubt.
Those skilled in the art are to be understood that accompanying drawing 7 and 8 is only schematic, can not be used for limiting the scope of the application, and columnar ceramic can be hollow or solid shape arbitrarily, is all applicable to the technical solution of the utility model, and realizes the purpose of this utility model.
The above mode of execution is only preferred embodiment of the present utility model, and is not the exhaustive of the feasible enforcement of the utility model.For persons skilled in the art, to any apparent change that it is made under the prerequisite not deviating from the utility model principle and spirit, all should be contemplated as falling with within claims of the present utility model.
Claims (6)
1. a columnar ceramic strengthens light metal composite brake dish, it is characterized in that, it comprises metallic matrix (1), described metallic matrix (1) is provided with one or two friction surface layer (2), and described friction surface layer (2) is columnar ceramic enhancing light metal composite material friction surface layer.
2. a kind of columnar ceramic according to claim 1 strengthens light metal composite brake dish, it is characterized in that, is selected from arbitrary following structure:
A. described metallic matrix (1) is provided with a friction surface layer (2), described metallic matrix (1) comprises metal dish and is arranged at the radiating fin (3) of various known form of described metal dish side, and described friction surface layer (2) and described radiating fin (3) are separately positioned on described metal dish both sides;
B. described metallic matrix (1) is provided with two friction surface layers (2), and described metallic matrix (1) comprises metal dish, and described two friction surface layers (2) are separately positioned on described metal dish both sides;
C. described metallic matrix (1) is provided with two friction surface layers (2), described metallic matrix (1) comprises two metal dish and connects the connecting body of described two metal dish, two described friction surface layers are separately positioned on the outside of described metal dish, and described connecting body is radiating fin (3).
3. a kind of columnar ceramic according to claim 1 strengthens light metal composite brake dish, it is characterized in that, friction surface layer (2) offers ventilation slot (4) and/or vent hole (5), described ventilation slot (4) is offered along the radial direction of friction surface layer (2), described ventilation slot (4) is straight line or curve shape in radial direction, described vent hole (5) is offered along the axial direction of friction surface layer (2), and described vent hole (5) is through hole and/or non through hole.
4. a kind of columnar ceramic according to claim 1 strengthens light metal composite brake dish, it is characterized in that, it is that the columnar ceramic of 1 ~ 9mm strengthens light metal composite material that described friction surface layer (2) comprises one or more thickness that plane lays.
5. a kind of columnar ceramic according to any one of claim 1-4 strengthens light metal composite brake dish, it is characterized in that, described columnar ceramic strengthens the light metal that light metal composite material comprises columnar ceramic and is combined with each other with described columnar ceramic, and described columnar ceramic is that solid or hollow ceramics pole arrangement forms.
6. a kind of columnar ceramic according to claim 5 strengthens light metal composite brake dish, it is characterized in that, described columnar ceramic accounts for 5 ~ 60% of friction surface layer (2) area, and described light metal accounts for 95 ~ 40% of friction surface layer (2) area.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520681126.XU CN205047705U (en) | 2015-09-06 | 2015-09-06 | Light metallic composite brake disc of column pottery reinforcing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520681126.XU CN205047705U (en) | 2015-09-06 | 2015-09-06 | Light metallic composite brake disc of column pottery reinforcing |
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| CN205047705U true CN205047705U (en) | 2016-02-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499755A (en) * | 2015-09-06 | 2017-03-15 | 房殊 | Columnar ceramic strengthens light metal composite brake disk |
| CN106763333A (en) * | 2016-12-12 | 2017-05-31 | 吴林 | For the brake disc of disc brake system |
| WO2020042900A1 (en) * | 2018-09-02 | 2020-03-05 | 张志国 | Long columnar ceramic particle-reinforced metal matrix composite wear-resistant material |
| EP4224031A4 (en) * | 2020-09-30 | 2023-11-01 | Ming Fang | Light metal structure-dual functional gradient composite material brake disc (drum) |
-
2015
- 2015-09-06 CN CN201520681126.XU patent/CN205047705U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499755A (en) * | 2015-09-06 | 2017-03-15 | 房殊 | Columnar ceramic strengthens light metal composite brake disk |
| CN106763333A (en) * | 2016-12-12 | 2017-05-31 | 吴林 | For the brake disc of disc brake system |
| WO2020042900A1 (en) * | 2018-09-02 | 2020-03-05 | 张志国 | Long columnar ceramic particle-reinforced metal matrix composite wear-resistant material |
| EP4224031A4 (en) * | 2020-09-30 | 2023-11-01 | Ming Fang | Light metal structure-dual functional gradient composite material brake disc (drum) |
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