CN106499757A - The ceramic skeleton of two-dimensional structure periodic arrangement strengthens light metal composite brake disk - Google Patents
The ceramic skeleton of two-dimensional structure periodic arrangement strengthens light metal composite brake disk Download PDFInfo
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- CN106499757A CN106499757A CN201510558827.9A CN201510558827A CN106499757A CN 106499757 A CN106499757 A CN 106499757A CN 201510558827 A CN201510558827 A CN 201510558827A CN 106499757 A CN106499757 A CN 106499757A
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- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 150000004767 nitrides Chemical class 0.000 claims description 2
- 239000011224 oxide ceramic Substances 0.000 claims description 2
- 229910052574 oxide ceramic Inorganic materials 0.000 claims description 2
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 25
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Abstract
The present invention relates to a kind of ceramic skeleton of two-dimensional structure periodic arrangement strengthens light metal composite brake disk, it is characterized in that, which includes metallic matrix, the metallic matrix is provided with one or two friction surface layer, and the friction surface layer strengthens light metal composite friction surface layer for the ceramic skeleton of two-dimensional structure periodic arrangement.The present invention gives full play to industrial ceramics high rigidity, high abrasion, high temperature resistant, and the characteristics of light metal light weight, loss of weight, intensity height, good toughness, by appropriate technique, industrial ceramics are prepared into the ceramic skeleton with two-dimensional structure periodic arrangement, then compound with light metal, it is prepared into the novel brake disc for having both characteristics concurrently.Friction including but not limited to the movable machinery equipment such as aircraft, rail traffic vehicles, road traffic vehicle, ship, braking requirement can be satisfied with.
Description
Technical field
The present invention relates to the ceramic skeleton of two-dimensional structure periodic arrangement strengthens light metal composite brake disk, belong to friction, brake field.
Background technology
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 brakes, safety, vibration and noise problem are increasingly paid close attention to.Particularly under high-speed overload operating mode, on the premise of friction clutch and braking ability is not affected, to friction clutch and brakes loss of weight, damping, noise reduction, safe, comfortable, wear-resisting requirement more and more higher.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.
Traditional ferrous materials brake disc, carbon carbon composite brake disc, carbon ceramic composite brake disc, ceramic particle strengthen Al alloy composite brake disc, foamed ceramics and strengthen Al alloy composite brake disc and apply coating rubbing-layer in metal surface to improve the brake disc of wearability, though respectively there is its pluses and minuses, seeking a kind of good brake disc of overall performance still becomes the focus that studies in the industry.
Content of the invention
It is an object of the invention to provide a kind of ceramic skeleton of two-dimensional structure periodic arrangement strengthens light metal composite brake disk, friction including but not limited to the movable machinery equipment such as aircraft, rail traffic vehicles, road traffic vehicle, ship, braking requirement can be satisfied with.
To achieve these goals, the technical scheme that the present invention takes is as follows：
A kind of ceramic skeleton of two-dimensional structure periodic arrangement strengthens light metal composite brake disk, its key technology point is, which includes metallic matrix, the metallic matrix is provided with one or two friction surface layer, and the friction surface layer strengthens light metal composite friction surface layer for the ceramic skeleton of two-dimensional structure periodic arrangement.
As further improvement of the invention, selected from arbitrary following structure：
A. the metallic matrix is provided with a friction surface layer, and the metallic matrix includes metal dish and is arranged at the radiating ribs of the various known forms of the metal dish side, and the friction surface layer and the radiating ribs are separately positioned on the metal dish both sides；
B. the metallic matrix is provided with two friction surface layers, and the metallic matrix includes metal dish, and described two friction surface layers are separately positioned on the metal dish both sides；
C. the metallic matrix is provided with two friction surface layers, and the metallic matrix includes two metal dish and connects the connector of described two metal dish, and described two friction surface layers are separately positioned on the outside of the metal dish, and the connector is radiating ribs or thermal column.
Structure described in above-mentioned B is so-called entire body dish structure brake disc, and the structure described in above-mentioned C is so-called reduction of fractions to a common denominator dish structure brake disc.
As further improvement of the invention, friction surface layer offers ventilation slot and/or air vent, the ventilation slot is opened up along the radial direction of friction surface layer, the ventilation slot is straight line or curve shape in radial direction, the air vent is opened up along the axial direction of friction surface layer, and the air vent is through hole and/or non through hole.
Used as further improvement of the invention, the friction surface layer includes that the thickness that one or more plane is laid strengthens light metal composite for the ceramic skeleton of the two-dimensional structure periodic arrangement of 1 ~ 9mm.
As further improvement of the invention, the ceramic skeleton of the two-dimensional structure periodic arrangement strengthens the ceramic skeleton that light metal composite includes two-dimensional structure periodic arrangement and the light metal being filled in the ceramic skeleton of the two-dimensional structure periodic arrangement, and the ceramic skeleton of the two-dimensional structure periodic arrangement is formed by ceramic skeleton cavity unit periodic arrangement.
Any one or more permutation and combination of the ceramic skeleton cavity unit two dimension xy directions in the shapes such as hollow triangle, quadrangle, pentagon, hexagon, polygon, polygon abnormity, circle, shaped form, the area in the ceramic skeleton cavity unit two dimension xy directions is 1 ~ 16 mm, ceramic skeleton cavity unit z direction is that the height in z directions is 1 ~ 9 mm through through hole.
Used as further improvement of the invention, the ceramic skeleton of the two-dimensional structure periodic arrangement accounts for the 5 ~ 60% of composite friction surface layer area, and light metal accounts for the 95 ~ 40% of brake disc composite friction surface layer area.
Improve as of the invention further, the ceramic skeleton of the two-dimensional structure periodic arrangement by selected from carbide ceramics, nitride ceramics, oxide ceramics and ceramic metal any one or more complex phase ceramic, Sialon（Sialon）Pottery is made.
Used as further improvement of the invention, the light metal in the ceramic skeleton enhancing light metal composite of the two-dimensional structure periodic arrangement includes the alloy of titanium, magnesium, aluminum and above-mentioned light metal, and adds the enhanced light metal of other materials and its alloy.The enhanced light metal of described interpolation other materials is selected from interpolation graphite, CNT or the enhanced light metal of various ceramic particles.
Used as further improvement of the invention, the material of the metallic matrix can be various ferrous metal, light metal titanium, magnesium, aluminum and its alloy, and add the enhanced light metal of other materials and its alloy.The enhanced light metal of described interpolation other materials is selected from interpolation graphite, CNT or the enhanced light metal of various ceramic particles.
As further improvement of the invention, prepared by any one method following：
Method one：The ceramic skeleton of two-dimensional structure periodic arrangement is put into mould, adds the light metal after heating, planted through one of techniques such as extruding, die forging, casting or multiple one-shot formings are completed；
Method two：The ceramic skeleton and metal grill of two-dimensional structure periodic arrangement are put into mould, add the light metal after heating, planted through one of techniques such as extruding, die forging, casting or multiple one-shot formings are completed；
Method three：
A. the ceramic skeleton of two-dimensional structure periodic arrangement is put into mould first, adds the light metal after heating, through one of techniques such as extruding, die forging, casting kind or multiple be prepared into composite friction surface layer；
B. the metallic matrix material material after and then by heating, is put in mould, through one of techniques such as extruding, die forging, casting kind or multiple is prepared into metallic matrix；
C. finally by composite friction surface layer and metallic matrix by inlaying, welding, one of composite casting, the technique such as riveting are planted or multiple post formings are completed.
Method four：
A. the ceramic skeleton of two-dimensional structure periodic arrangement is put into mould first, adds the light metal after heating, through one of techniques such as extruding, die forging, casting kind or multiple be prepared into composite friction surface layer；
B. metal grill is put in mould, add heating after metallic matrix material material, through one of techniques such as extruding, die forging, casting kind or multiple be prepared into metallic matrix,
C. finally by composite friction surface layer and metallic matrix by inlaying, welding, one of composite casting, the technique such as riveting are planted or multiple post formings are completed.
Described metal grill selected from 0.5 ~ 3 mm of seal ring thickness, highly 0.5 ~ 30
Mm, the grid-shaped metal for having 1 ~ 30 grid every square centimeter.
Compared with prior art, having the beneficial effect that acquired by the present invention：
1. the present invention gives full play to industrial ceramics high rigidity, high abrasion, high temperature resistant, and the characteristics of light metal light weight, loss of weight, intensity height, good toughness, by appropriate technique, industrial ceramics are prepared into the ceramic skeleton with two-dimensional structure periodic arrangement, then compound with light metal, it is prepared into the novel brake disc for having both characteristics concurrently.
2. the friction surface layer of brake disc of the present invention is composited with the light metal or its alloy that fills therebetween by the hollow ceramic skeleton of aforementioned two-dimensional structure periodic arrangement.The ceramic skeleton of two-dimensional structure periodic arrangement in x/y plane two-dimensional space periodic arrangement, Z-direction be then through duct, fill column light metal therebetween or its alloy.Because the ceramic hollow skeleton biscuit of two-dimensional structure periodic arrangement is obtained through forming modes such as slip casting, extruding, dry-pressing, isostatic presseds, so the ceramic skeleton after sintering has the advantages that smooth side wall, the uniform liquid metal flow that is neat, being easy to casting of internal channel, filling are fine and close, it is suitable for various extruding, die forging, casting technique, and the casting flaw of composite can be reduced, lift yield rate and combination property.
3. the excellent plasticity of metal, intensity can be born load with the ceramic skeleton reinforcement of two-dimensional structure periodic arrangement by composite brake disk according to the present invention, the ability of friction resistant abrasion combines, make it have good vibration damping, heat resistanceheat resistant degenerative and frictional behaviour, very big dead load and cyclic loading are born for a long time can, the friction clutch, braking in the field such as Aero-Space, track and highway transportation, machinery has good application prospect.
4. the brake disc that the present invention is provided, with existing with Composition brake shoes, powder metallurgy brake pad and other such as carbon carbon brake lining, carbon pottery brake lining etc. are made antithesis and carry out frictional damping when, stable friction factor can fully meet the use requirement of aircraft, rail traffic vehicles, road traffic vehicle, various movable machineries etc. between 0.2 ~ 0.5.
Description of the drawings
Structural representations of the accompanying drawing 1-1 for the embodiment of the present invention 1；
Side views of the accompanying drawing 1-2 for the embodiment of the present invention 1；
Structural representations of the accompanying drawing 2-1 for the embodiment of the present invention 2；
Sectional views of the accompanying drawing 2-2 for the embodiment of the present invention 2；
Structural representations of the accompanying drawing 3-1 for the embodiment of the present invention 3；
Side views of the accompanying drawing 3-2 for the embodiment of the present invention 3；
Accompanying drawing 4 is the structural representation that friction surface layer of the present invention includes polylith composite layer block；
Accompanying drawing 5-1 is the structural representation that friction surface layer of the present invention opens up linear ventilation slot；
Accompanying drawing 5-2 is the structural representation that friction surface layer of the present invention opens up shaped form ventilation slot；
Accompanying drawing 6-1 is the structural representation that friction surface layer of the present invention opens up non through hole air vent；
Accompanying drawing 6-2 is A-A sectional views in 6-1；
Accompanying drawing 6-3 is the structural representation that friction surface layer of the present invention opens up through hole air vent；
Accompanying drawing 6-4 is A-A sectional views in 6-3；
Structural representation of the accompanying drawing 7 for the ceramic skeleton of two-dimensional structure periodic arrangement of the present invention；
Schematic shapes of the accompanying drawing 8 for the two-dimentional xy directions of the ceramic skeleton of two-dimensional structure periodic arrangement of the present invention；
In the accompanying drawings：
1 metallic matrix, 2 friction surface layers, 3 radiating ribs, 4 ventilation slots, 5 air vents.
Specific embodiment
Further details of narration is carried out to the present invention below in conjunction with drawings and Examples.
The ceramic skeleton of the two-dimensional structure periodic arrangement used by following examples strengthens the ceramic skeleton that light metal composite includes two-dimensional structure periodic arrangement and the light metal being filled in the ceramic skeleton of the two-dimensional structure periodic arrangement, as depicted in figures 7 and 8, the two-dimentional xy directions of the ceramic skeleton of the two-dimensional structure periodic arrangement are formed by the cycle ordered arrangement of any one or more permutation and combination in the arbitrary shape such as hollow triangle, quadrangle, pentagon, hexagon, polygon, polygon abnormity, circle, shaped form.The area of the cavity unit of arbitrary shape such as the hollow triangle in two-dimentional xy directions, quadrangle, pentagon, hexagon, polygon, polygon abnormity, circle, shaped form is 1 ~ 16
Mm, ceramic skeleton z direction is that the height in z directions is 1 ~ 9mm through through hole.The ceramic skeleton of the two-dimensional structure periodic arrangement accounts for the 5 ~ 60% of composite friction surface layer area, and light metal accounts for the 95 ~ 40% of brake disc composite friction surface layer area.
Ventilation slot 4 can be opened up as needed on friction surface layer in following examples, as shown in accompanying drawing 5-1, ventilation slot 4 is rectilinear form in radial direction, as shown in accompanying drawing 5-2, ventilation slot 4 is curve shape in radial direction.
Air vent 5 can be opened up as needed on friction surface layer 2 in following examples, as shown in accompanying drawing 6-1 and 6-2, air vent 5 is non-through well format, as shown in accompanying drawing 6-3 and 6-4, air vent 5 is through-hole form.
Single rubbing surface structure brake disc of the embodiment 1 by different light metal post formings
Referring to shown in accompanying drawing 1-1 and 1-2, a kind of ceramic skeleton of two-dimensional structure periodic arrangement that the present embodiment is provided strengthens light metal composite brake disk, which includes metallic matrix 1, the metallic matrix 1 is provided with a friction surface layer 2, the metallic matrix 1 includes metal dish and is arranged at the radiating ribs 3 of the metal dish side, the friction surface layer 2 and the radiating ribs 3 are separately positioned on the metal dish both sides, the side of metal dish is provided with friction surface layer 2, the metal dish reverse side relative with friction surface layer 2 there are radiating ribs 3.Described friction surface layer 2 strengthens light metal composite friction surface layer for the ceramic skeleton of two-dimensional structure periodic arrangement, the ceramic skeleton of two pieces of two-dimensional structure periodic arrangements that friction surface layer 2 is laid by plane strengthens light metal composite and constitutes, and two pieces of composite friction surface layers 2 are kept apart by the ventilation slot 4 that two radial directions are shaped as straight line.
In the present embodiment, the ceramic skeleton of two-dimensional structure periodic arrangement is 95 aluminium oxide ceramics skeletons of periodic arrangement on two-dimensional directional, the light metal being filled in the present embodiment in the ceramic skeleton of the two-dimensional structure periodic arrangement is 2024 aluminium alloys, metallic matrix 1 in the present embodiment is the A350 magnesium alloy brake disc metallic matrixes of built-in ferrous metal grid, makes especially by following methods：
The first step：By design requirement, the cellular 95 aluminium oxide ceramics skeleton of the two-dimensional structure periodic arrangement of ceramics company limited in Yixing City hundred million will be purchased from, and corresponding shape be prepared by brake disc drawing, also ceramic surface can be surface-treated accordingly as needed；
Second step：95 aluminium oxide ceramics skeletons of the two-dimensional structure periodic arrangement of the respective shapes of well cutting are put into and are preheated in 450 ± 10 DEG C of forging mold；
3rd step：Will warm up 465 ± 10 DEG C of 2024 aluminium alloys, by applying the pressure of 40 ~ 70MPa, it is combined together with 95 aluminium oxide ceramics skeletons of the two-dimensional structure periodic arrangement being put in forging mold, the 95 aluminium oxide ceramics skeletons for forming two-dimensional structure periodic arrangement strengthen 2024 aluminium alloy friction surface layer blocks.The friction surface layer block can be full circle, or the various other shapes according to design requirement.As needed, variously-shaped air vent, riveted holes can be integrally forged on friction surface layer block, standby after heat treatment, machining；
4th step：To be put in forging mold for the ferrous metal grid for strengthening light metal intensity, by warmed-up A350 magnesium alloys, by the method for die forging, being made into integration the back side with ferrous metal grid there are the various brake disc metallic matrixes for setting shape radiating ribs.Brake disc metallic matrix can also integrally forge variously-shaped air vent, riveted holes according to design requirement, standby after heat treatment, machining；
5th step：By inlaying, one of friction welding (FW) or riveting kind or kinds of processes, the friction surface layer block for preparing and brake disc metallic matrix are combined together, finished product after retrofit, is made.
Single friction surface layer structure brake disc manufactured in the present embodiment, compare traditional ferrous materials brake disc loss of weight 60% or so, compare other materials brake disc, processing technology is simpler, allowance is less, cost is lower, industrialization production 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 undoubtedly traditional ferrous materials brake disc.
Embodiment 2 is by one-time formed pair of friction surface layer entire body dish structure brake disc of same metal
Referring to shown in accompanying drawing 2-1 and 2-2, a kind of ceramic skeleton of two-dimensional structure periodic arrangement that the present embodiment is provided strengthens light metal composite brake disk, which includes metallic matrix 1, the metallic matrix 1 is provided with two friction surface layers 2, the metallic matrix 1 includes metal dish, described two friction surface layers 2 are separately positioned on the metal dish both sides, i.e. metal of two friction surface layers by between is connected together.Friction surface layer 2 strengthens light metal composite by the ceramic skeleton of a monoblock two-dimensional structure periodic arrangement and constitutes.
Silicon nitride ceramics skeleton of the ceramic skeleton of the present embodiment two-dimensional structure periodic arrangement for two-dimensional structure periodic arrangement, the light metal being filled in the ceramic skeleton of the two-dimensional structure periodic arrangement and metallic matrix are 7075 aluminium alloys, and concrete preparation method is as follows：
The first step：Design requirement is pressed, the silicon nitride ceramics skeleton of two-dimensional structure periodic arrangement of the Shijiazhuang favour containing encapsulant factory will be purchased from, be prepared into corresponding brake disc required form on request, also ceramic surface can be surface-treated accordingly as needed；
Second step：According to the shape of brake disc, the mould of the double friction surface layer entire body dish structure brake discs of compression casting is designed.The mould includes the die cavity of the silicon nitride ceramics skeleton for placing two-dimensional structure periodic arrangement, and the silicon nitride ceramics skeleton of the two-dimensional structure periodic arrangement of respective shapes is put in the die cavity of pressure casting machine mould；
3rd step：Set technique, will melting 7075 aluminium alloys, with the pressure of 5 ~ 100MPa, in the die cavity of die casting die for be squeezed into being placed with the silicon nitride ceramics skeleton of two-dimensional structure periodic arrangement, being evacuated, be preheated to 150 ~ 300 DEG C.After cooling, it is that the metal by between connects double friction surface layer entire body dish structure brake discs together to obtain two friction surface layers；
4th：The silicon nitride ceramics of the two-dimensional structure periodic arrangement obtained by pressure casting process is strengthened the double friction surface layer entire body dish structure brake discs of 7075 aluminium alloys, heat treatment is carried out by the corresponding Technology for Heating Processing of 7075 aluminium alloys；
5th step：The silicon nitride ceramics that the two-dimensional structure periodic arrangement after heat treatment is carried out by corresponding technique is strengthened the double friction surface layer entire body dish structure brake discs of 7075 aluminium alloys, obtains finished product after retrofit；
The double friction surface layer entire body dish structure brake discs prepared using this method, compare traditional ferrous materials brake disc loss of weight 60% or so, compare other materials brake disc, processing technology is simpler, allowance is less, cost is lower, industrialization production 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 undoubtedly traditional ferrous materials brake disc.
Embodiment 3 is by one-time formed pair of friction surface layer venting plate structure brake disc of same metal
Referring to shown in accompanying drawing 3-1 and 3-2, a kind of ceramic skeleton of two-dimensional structure periodic arrangement that the present embodiment is provided strengthens light metal composite brake disk, which includes metallic matrix 1, the metallic matrix 1 is provided with two friction surface layers 2, the metallic matrix 1 includes two metal dish and connects the radiating ribs of described two metal dish, and described two friction surface layers 2 are separately positioned on the outside of the metal dish.Friction surface layer 2 strengthens light metal composite by the ceramic skeleton of a monoblock two-dimensional structure periodic arrangement and constitutes.
Silicon carbide ceramics skeleton of the ceramic skeleton of the two-dimensional structure periodic arrangement of the present embodiment for two-dimensional structure periodic arrangement, the light metal being filled in the ceramic skeleton of the two-dimensional structure periodic arrangement and metallic matrix are ZL111 aluminium alloys.The present embodiment is formed with one piece low pressure casting, specific as follows：
The first step：Design requirement is pressed, the silicon carbide ceramics skeleton of the two-dimensional structure periodic arrangement of the big Correspondent new material company limited in Shijiazhuang east will be purchased from, be prepared into corresponding brake disc required form on request, also ceramic surface can be surface-treated accordingly as needed；
Second step：According to the shape of brake disc, design can the double friction surface layer venting plate structure brake discs of low pressure casting mould.The mould includes the silicon carbide ceramics skeleton for placing two-dimensional structure periodic arrangement and the die cavity for preparing core used by double friction surface layer venting plate structure brake discs；
3rd step：The silicon carbide ceramics skeleton and core of the two-dimensional structure periodic arrangement of respective shapes in order and are required to be sequentially placed in the die cavity of air injection machine mould；
4th：According to technique is set, the ZL111 aluminium alloys of melting, low pressure are cast in the die cavity of the silicon carbide ceramics skeleton and core that are placed with two-dimensional structure periodic arrangement.Its concrete technology is as follows：In 200 ~ 500 DEG C of brake disc mold temperature, during 650 ~ 750 DEG C of molten aluminium alloy temperature, the silicon carbide ceramics skeleton and core of two-dimensional structure periodic arrangement in order and are started low pressure casting in the die cavity that requires be sequentially placed into air injection machine mould.The liquid stage is risen, 1 ~ 12 second pressing time, is filled the type stage, 1 ~ 10 mm/s of the metal bath surface rate of climb, the molten aluminium alloy weight for filling type is 1 ~ 10
Kg/s, filling time 2 ~ 20 seconds fill type pumping rate for 0.004 ~ 0.030
MPa/s；Pressurization stages, are pressurized 0.010 ~ 0.035 on the basis of type supercharging value is filled again
MPa, 5 ~ 60 seconds dwell times；Pressurize solidification stages, time are 20 ~ 500 seconds.After cooling, it is that the metal and radiating ribs, post by between connects double friction surface layer venting plate structure brake discs together to obtain two friction surface layers；
5th step：The silicon carbide ceramics skeleton of the two-dimensional structure periodic arrangement obtained by low-pressure casting process is strengthened the double friction surface layer venting plate structure brake discs of ZL111 aluminium alloys, heat treatment is carried out by the corresponding technique of ZL111 aluminium alloys；
6th step：The silicon carbide ceramics skeleton that the two-dimensional structure periodic arrangement after heat treatment is carried out by corresponding technique is strengthened the double friction surface layer venting plate structure brake discs of ZL111 aluminium alloys, obtains finished product after retrofit.
The double friction surface layer venting plate structure brake discs prepared using this method, compare traditional ferrous materials brake disc loss of weight 60% or so, compare other materials brake disc, processing technology is simpler, allowance is less, cost is lower, industrialization production 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 undoubtedly traditional ferrous materials brake disc.
Double friction surface layer venting plate structure brake discs of the embodiment 4 by same metal post forming
A kind of ceramic skeleton of two-dimensional structure periodic arrangement that the present embodiment is provided strengthens light metal composite brake disk, which includes metallic matrix 1, the metallic matrix 1 is provided with two friction surface layers 2, the metallic matrix 1 includes two metal dish and connects the radiating ribs 3 of described two metal dish, and described two friction surface layers 2 are separately positioned on the outside of the metal dish.Friction surface layer 2 as shown in Figure 4, strengthens light metal composite frictional layer block by the ceramic skeleton of 9 pieces of two-dimensional structure periodic arrangements and constitutes.
Silicon carbide ceramics skeleton of the ceramic skeleton of the two-dimensional structure periodic arrangement of the present embodiment for two-dimensional structure periodic arrangement, the light metal being filled in the ceramic skeleton of the two-dimensional structure periodic arrangement and metallic matrix are ZL111 aluminium alloys.The present embodiment is formed with composite casting, specific as follows：
The first step：Design requirement is pressed, brake disc rubbing surface layer is divided into 9 equal portions, and prepare the silicon carbide ceramics skeleton of the two-dimensional structure periodic arrangement of respective shapes, also ceramic surface can be surface-treated accordingly as needed；
Second step：Size design die casting die by the brake disc rubbing surface layer block after 9 equal portions；
3rd step：The corresponding size for preparing, the silicon carbide ceramics skeleton of the two-dimensional structure periodic arrangement of shape is put in die casting die.Then by technique is set, the ZL111 aluminium alloys of melting, press-in are placed with the die cavity of silicon carbide ceramics skeleton of two-dimensional structure periodic arrangement.The friction surface layer block of corresponding size after cooling, is obtained, is taken out standby；
4th step：Size, shape according to brake disc, design can the double friction surface layer venting plate structure brake disc of gravitational casting sand mo(u)ld.Include the silicon carbide ceramics skeleton enhancing ZL111 aluminium alloy friction surface layer blocks for placing two-dimensional structure periodic arrangement and the die cavity for preparing core used by double friction surface layer venting plate structure brake discs in the sand mo(u)ld；
5th step：The silicon carbide ceramics skeleton of two-dimensional structure periodic arrangement is strengthened ZL111 aluminium alloy friction surface layer blocks and prepares pair core of friction surface layer venting plate structure brake discs and is put in the die cavity of gravitational casting brake disc sand mo(u)ld, pour into the ZL111 aluminium alloys of melting, after cooling, the silicon carbide ceramics skeleton for obtaining two-dimensional structure periodic arrangement obtained in composite casting technology strengthens the double friction surface layer venting plate structure brake discs of ZL111 aluminium alloys；
6th step：The silicon carbide ceramics skeleton of the two-dimensional structure periodic arrangement obtained by composite casting technology is strengthened the double friction surface layer venting plate structure brake discs of ZL111 aluminium alloys, heat treatment is carried out by corresponding technique；
7th step：The silicon carbide ceramics skeleton that the two-dimensional structure periodic arrangement after heat treatment is carried out by corresponding technique is strengthened the double friction surface layer venting plate structure brake discs of ZL111 aluminium alloys, obtains finished product after retrofit.
The double friction surface layer venting plate structure brake discs prepared using this method, compare traditional ferrous materials brake disc loss of weight 60% or so, compare other materials brake disc, processing technology is simpler, allowance is less, cost is lower, industrialization production 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 undoubtedly traditional ferrous materials brake disc.
The one-time formed single rubbing surface structure brake disc of embodiment 5
A kind of ceramic skeleton of two-dimensional structure periodic arrangement that the present embodiment is provided strengthens light metal composite brake disk, which includes metallic matrix 1, the metallic matrix 1 is provided with a friction surface layer 2, the metallic matrix 1 includes metal dish and is arranged at the radiating ribs 3 of the metal dish side, the friction surface layer 2 and the radiating ribs 3 are separately positioned on the metal dish both sides, the side of metal dish is provided with friction surface layer 2, the metal dish reverse side relative with friction surface layer 2 there are radiating ribs 3.Described friction surface layer 2 strengthens light metal composite friction surface layer for the ceramic skeleton of two-dimensional structure periodic arrangement.
Silicon carbide ceramics skeleton of the ceramic skeleton of the two-dimensional structure periodic arrangement of the present embodiment for two-dimensional structure periodic arrangement, the light metal being filled in the ceramic skeleton of the two-dimensional structure periodic arrangement and metallic matrix are Ti-6Al-4V titanium alloys.Concrete grammar is as follows:
The first step：By design requirement, the silicon carbide ceramics skeleton of the two-dimensional structure periodic arrangement of respective shapes is prepared, also ceramic surface can be surface-treated accordingly as needed
Second step：According to Ti alloy casting characteristic and method, design, prepare and can integrally cast out variously-shaped air vent, riveted holes, the back side there are the casting moulds of various setting shape radiating ribs again
3rd step：Silicon carbide ceramics skeleton disorderly arranged for two-dimensional structure is put in casting mould
4th step：Using traditional gravity foundry technology, by the Ti-6Al-4V titanium alloys of melting, it is cast in the casting mould of the silicon carbide ceramics skeleton for being placed with two-dimensional structure periodic arrangement, the silicon carbide ceramics skeleton of two-dimensional structure periodic arrangement and Ti-6Al-4V titanium alloys are combined together, the silicon carbide ceramics skeleton for forming two-dimensional structure periodic arrangement strengthens Ti-6Al-4V titanium alloy friction surface layer blocks.The friction surface layer block can be full circle, or the various other shapes according to design requirement.
5th step：The silicon carbide ceramics skeleton of the two-dimensional structure periodic arrangement that one-step casting molding is completed strengthens Ti-6Al-4V titanium alloy list friction surface layer structure brake discs, carries out heat treatment by the Technology for Heating Processing of Ti-6Al-4V titanium alloys
6th step：The silicon carbide ceramics skeleton that Technology for Heating Processing by Ti-6Al-4V titanium alloys is carried out the two-dimensional structure periodic arrangement after heat treatment strengthens Ti-6Al-4V titanium alloy list friction surface layer structure brake discs, makes finished product after retrofit
The single friction surface layer structure brake disc prepared using this method, is compared traditional ferrous materials brake disc not only loss of weight 60% or so, and intensity is higher, and durable temperature is higher.Other materials, such as carbon carbon, carbon ceramic Moving plate is compared, processing technology is simpler, allowance is less, cost is lower, industrialization production is more prone to.Compare other light metal composite brake disks, such as aluminium alloy, composite material of magnesium alloy brake disc are resistant to friction under the conditions of more complicated operating mode, higher temperature, brake request.Under current energy-saving and emission-reduction, lightweight overall background, the favorable substitutes of undoubtedly traditional ferrous materials brake disc.
6 one-shot forming metal grill of embodiment strengthens single friction surface layer structure brake disc of light metal matrix
A kind of ceramic skeleton of two-dimensional structure periodic arrangement that the present embodiment is provided strengthens light metal composite brake disk, which includes metallic matrix 1, the metallic matrix 1 is provided with a friction surface layer 2, the metallic matrix 1 includes metal dish and is arranged at the radiating ribs 3 of the metal dish side, the friction surface layer 2 and the radiating ribs 3 are separately positioned on the metal dish both sides, the side of metal dish is provided with friction surface layer 2, the metal dish reverse side relative with friction surface layer 2 there are radiating ribs 3.Described friction surface layer 2 strengthens light metal composite friction surface layer for the ceramic skeleton of two-dimensional structure periodic arrangement.
95 aluminium oxide ceramics skeletons of the ceramic skeleton of the two-dimensional structure periodic arrangement of the present embodiment for two-dimensional structure periodic arrangement, the light metal being filled in the ceramic skeleton of the two-dimensional structure periodic arrangement and metallic matrix are A350 magnesium alloys.Concrete grammar is as follows:
The first step：By design requirement, 95 aluminium oxide ceramics skeletons of the two-dimensional structure periodic arrangement of respective shapes are prepared, also ceramic surface can be surface-treated accordingly as needed
Second step：According to the shape of brake disc, design can one die forging forging mold.The forging mold includes die cavity and prefabricated air vent, the ventilation slot module of the 95 aluminium oxide ceramics skeletons and ferrous metal grid of placing two-dimensional structure periodic arrangement, the upper mould of mould be prepared into can the various radiating ribs, thermal column and air vent for setting shape of one die forging shape
3rd step：It is sequentially placed in forging mold by 95 aluminium oxide ceramics skeletons of two-dimensional structure periodic arrangement and for strengthening the ferrous metal grid of A350 magnesium alloys, with contour forging technique, would be heated to the A350 magnesium alloys of uniform temperature, forge in the mold cavity of the 95 aluminium oxide ceramics skeletons and ferrous metal grid that are placed with two-dimensional structure periodic arrangement, 95 aluminium oxide ceramics skeletons and ferrous metal grid of the A350 magnesium alloys with two-dimensional structure periodic arrangement are combined together, the 95 aluminium oxide ceramics skeletons for forming existing two-dimensional structure periodic arrangement strengthen A350 magnesium alloy friction surface layers, there is ferrous metal grid to strengthen A350 magnesium alloys and variously-shaped radiating ribs in metallic matrix again, the monoblock type list friction surface layer structure brake disc of air vent
4th step：By the A350 magnesium alloy monoblock type list friction surface layer structure brake discs obtained by contour forging technique, heat treatment is carried out by relevant technique
5th step：The A350 magnesium alloy monoblock type list friction surface layer structure brake discs after heat treatment will be carried out by relevant technique, make finished product after retrofit
The single friction surface layer structure brake disc prepared using this method, compare traditional ferrous materials brake disc loss of weight 65% or so, compare other materials brake disc, processing technology is simpler, allowance is less, cost is lower, industrialization production 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 undoubtedly traditional ferrous materials brake disc.
Skilled artisan would appreciate that accompanying drawing 7 and 8 is only schematically, can not be used for limiting scope of the present application, ceramic skeleton cavity unit two dimension xy directions can be any hollow shape, may be applicable to technical scheme, and realize the purpose of the present invention.
The above embodiment is only the preferred embodiments of the present invention, and the simultaneously exhaustion of the feasible enforcement of non-invention.For persons skilled in the art, to any obvious change done by which on the premise of without departing substantially from the principle of the invention and spirit, should all be contemplated as falling with the claims of the present invention.
Claims (10)
1. a kind of ceramic skeleton of two-dimensional structure periodic arrangement strengthens light metal composite brake disk, it is characterized in that, which includes metallic matrix (1), metallic matrix (1) is provided with one or two friction surface layer (2), and described friction surface layer (2) strengthen light metal composite friction surface layer for the ceramic skeleton of two-dimensional structure periodic arrangement.
2. a kind of ceramic skeleton of two-dimensional structure periodic arrangement according to claim 1 strengthens light metal composite brake disk, it is characterised in that selected from arbitrary following structure：
A. metallic matrix (1) is provided with a friction surface layer (2), described metallic matrix (1) includes metal dish and is arranged at the radiating ribs (3) of the metal dish side, and friction surface layer (2) and the radiating ribs (3) are separately positioned on the metal dish both sides；
B. metallic matrix (1) is provided with two friction surface layers (2), and described metallic matrix (1) includes metal dish, and described two friction surface layer (2) are separately positioned on the metal dish both sides；
C. metallic matrix (1) is provided with two friction surface layers (2), described metallic matrix (1) includes two metal dish and connects the connector of described two metal dish, two friction surface layers are separately positioned on the outside of the metal dish, and the connector is radiating ribs.
3. a kind of ceramic skeleton of two-dimensional structure periodic arrangement according to claim 1 strengthens light metal composite brake disk, it is characterised in that friction surface layer（2）Offer ventilation slot (4) and/or air vent (5), ventilation slot (4) are opened up along the radial direction of friction surface layer (2), ventilation slot (4) are straight line or curve shape in radial direction, air vent (5) are opened up along the axial direction of friction surface layer (2), and described air vent (5) are through hole and/or non through hole.
4. a kind of ceramic skeleton of two-dimensional structure periodic arrangement according to claim 1 strengthens light metal composite brake disk, characterized in that, described friction surface layer (2) include that one or more thickness that plane is laid strengthens light metal composite for the ceramic skeleton of the two-dimensional structure periodic arrangement of 1 ~ 9mm.
5. a kind of ceramic skeleton of the two-dimensional structure periodic arrangement according to any one of claim 1-4 strengthens light metal composite brake disk, it is characterized in that, the ceramic skeleton of the two-dimensional structure periodic arrangement strengthens the ceramic skeleton that light metal composite includes two-dimensional structure periodic arrangement and the light metal being filled in the ceramic skeleton of the two-dimensional structure periodic arrangement, and the ceramic skeleton of the two-dimensional structure periodic arrangement is formed by ceramic skeleton cavity unit periodic arrangement.
6. a kind of ceramic skeleton of two-dimensional structure periodic arrangement according to claim 5 strengthens light metal composite brake disk, it is characterized in that, the ceramic skeleton of the two-dimensional structure periodic arrangement accounts for the 5 ~ 60% of friction surface layer (2) area, and the light metal accounts for the 95 ~ 40% of friction surface layer (2) area.
7. a kind of ceramic skeleton of two-dimensional structure periodic arrangement according to claim 5 strengthens light metal composite brake disk, characterized in that, the ceramic skeleton of the two-dimensional structure periodic arrangement by selected from carbide ceramics, nitride ceramics, oxide ceramics and ceramic metal any one or more complex phase ceramic, Sialon pottery makes.
8. a kind of ceramic skeleton of two-dimensional structure periodic arrangement according to claim 5 strengthens light metal composite brake disk, it is characterized in that, the ceramic skeleton of the two-dimensional structure periodic arrangement strengthens the light metal in light metal composite includes titanium, magnesium, aluminum and its alloy, and adds the enhanced light metal of other materials and its alloy.
9. a kind of ceramic skeleton of the two-dimensional structure periodic arrangement according to claim (1) strengthens light metal composite brake disk, it is characterized in that, the material of the metallic matrix 1 can be various ferrous metal, light metal and its alloy, and add the enhanced light metal of other materials and its alloy.
10. a kind of ceramic skeleton of two-dimensional structure periodic arrangement according to claim 1 strengthens light metal composite brake disk, it is characterised in that prepared by any one method following：
Method one：The ceramic skeleton of two-dimensional structure periodic arrangement is put into mould, adds the light metal after heating, planted through one of techniques such as extruding, die forging, casting or multiple one-shot formings are completed；
Method two：The ceramic skeleton and metal grill of two-dimensional structure periodic arrangement are put into mould, add the light metal after heating, planted through one of techniques such as extruding, die forging, casting or multiple one-shot formings are completed；
Method three：
A. the ceramic skeleton of two-dimensional structure periodic arrangement is put into mould first, adds the light metal after heating, through one of techniques such as extruding, die forging, casting kind or multiple be prepared into composite friction surface layer；
B. the metallic matrix material material after and then by heating, is put in mould, through one of techniques such as extruding, die forging, casting kind or multiple is prepared into metallic matrix；
C. finally by composite friction surface layer and metallic matrix by inlaying, welding, one of composite casting, the technique such as riveting are planted or multiple post formings are completed；
Method four：
A. the ceramic skeleton of two-dimensional structure periodic arrangement is put into mould first, adds the light metal after heating, through one of techniques such as extruding, die forging, casting kind or multiple be prepared into composite friction surface layer；
B. metal grill is put in mould, add heating after metallic matrix material material, through one of techniques such as extruding, die forging, casting kind or multiple be prepared into metallic matrix,
C. finally by composite friction surface layer and metallic matrix by inlaying, welding, one of composite casting, the technique such as riveting are planted or multiple post formings are completed.
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| CN201510558827.9A CN106499757A (en) | 2015-09-06 | 2015-09-06 | The ceramic skeleton of two-dimensional structure periodic arrangement strengthens light metal composite brake disk |
| PCT/CN2015/097815 WO2017035996A1 (en) | 2015-09-06 | 2015-12-18 | Composite material brake disc wherein ceramic framework having two-dimensional structure specific arrangement reinforces light metal |
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| CN201510558827.9A CN106499757A (en) | 2015-09-06 | 2015-09-06 | The ceramic skeleton of two-dimensional structure periodic arrangement strengthens light metal composite brake disk |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735925A (en) * | 2017-03-21 | 2017-05-31 | 商丘师范学院 | A kind of femtosecond laser direct write preparation method of two-dimentional sub-micron butterfly metal micro structure |
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