CN112815024B - Multi-point automobile brake disc and brake disc manufacturing process - Google Patents

Abstract

The invention discloses a multi-point automobile brake disc and a manufacturing process of the brake disc, wherein the multi-point automobile brake disc comprises the following raw materials in parts by weight: 60-80 parts of hard base material particles, 1-3 parts of binder, 0.5-1 part of borax, 30-50 parts of gray cast iron and 10-20 parts of coating paint are prepared by three steps of preparation of precast blocks, preparation of a brake disc matrix and film coating in a brake disc preparation device, wherein the precast blocks are prepared by casting gray cast iron liquid to further strengthen the strength of the precast blocks, the binder and the permeation assisting agent, and finally a layer of paint with high temperature resistance and corrosion resistance is covered, the process of the used brake disc preparation device is convenient and simple, the preparation time is shortened, the working efficiency is improved, and the problem that the brake disc is easily corroded in the use process due to single brake disc preparation material is effectively solved, so that the brake failure is caused.

Description

Multi-point automobile brake disc and brake disc manufacturing process

Technical Field

The invention relates to the technical field of brake disc manufacturing, in particular to a multi-point type automobile brake disc and a brake disc manufacturing process.

Background

The brake disc, simply a round disc, rotates as the vehicle travels. The brake calipers clamp the brake disc to generate braking force, and when the brake is stepped on, the brake calipers clamp the brake disc to play a role in decelerating or stopping. The brake disc has good braking effect and is easier to maintain than drum brake.

The brake disc is a necessary part of all vehicle braking systems, and is fixed on an axle and rotates together with wheels, when in braking, a brake block is extruded onto the brake disc under the pushing of a clamping piston, and the rotating speed of the wheels is reduced through the friction between the brake block and the brake disc, so that the purpose of decelerating and braking the vehicle is achieved. Under the working condition, the brake disc bears the pressure and friction force of the brake block, abrasion is generated in the relative motion with the brake block, and particularly when sundries such as sand and the like are arranged on the working surface, the abrasion is more serious. Therefore, the material for manufacturing the vehicle-killing plate has high mechanical strength and good wear resistance. At present, a common brake disc is only made of single materials such as wrought cast iron, gray cast iron, spheroidal graphite cast iron and the like, the strength meets the working condition requirement, the wear resistance is too poor, the brake disc needs to be replaced when the vehicle runs for less than one hundred thousand kilometers, and the thickness of the brake disc is insufficient even after the brake disc is worn for a long time, meanwhile, the brake disc is easily corroded in the using process, and traffic accidents are caused by braking failure.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the invention provides a multi-point automobile brake disc and a brake disc manufacturing process, which are used for solving the problems that the brake disc is only made of single materials such as wrought cast iron, gray cast iron, nodular cast iron and the like, the strength of the conventional brake disc meets the working condition requirements, the wear resistance is poor, the brake disc needs to be replaced when the brake disc runs for less than hundred thousand kilometers, and the thickness of the brake disc is insufficient even after the brake disc is worn for a long time, and meanwhile, the brake disc is easily corroded in the use process, so that traffic accidents are caused by braking failure.

(II) technical scheme

In order to achieve the above purpose, the invention is realized by the following technical scheme: a multi-point automobile brake disc and a manufacturing process of the brake disc comprise the following raw materials in parts by weight: 60-80 parts of hard substrate particles, 1-3 parts of binder, 0.5-1 part of borax, 30-50 parts of gray cast iron and 10-20 parts of overcoating paint;

the multipoint automobile brake disc is manufactured by the following steps:

step S1: adding hard substrate particles, a binder and borax into a stirring box of a brake disc preparation device from a first feed inlet of the stirring box, starting a stirring motor and a first heater, setting the rotating speed to be 400-600r/min, stirring for 10-20min at the temperature of 70-80 ℃, obtaining a first mixed material after stirring, starting a servo electric cylinder, enabling a connecting rod to drive a movable partition plate to move towards one side of the servo electric cylinder, enabling the first mixed material to enter a discharge pipeline through the first discharge port, and then entering the interior of a molding cavity from the discharge pipeline, and cooling and molding to obtain a precast block;

step S2: the method comprises the steps that firstly, gray cast iron is added into a melting box from a feeding port II, a heater II is started to enable the gray cast iron to be heated and melted in the melting box, a motor of a gear is started to enable a bottom plate with a rack meshed with the gear to move towards the melting box along with the precast block in a casting cavity, when the bottom plate moves to a discharging port II of the melting box, a rotating shaft in the middle of a supporting frame rotates to drive the melting box to incline, molten cast iron is poured into the casting cavity from the discharging port II, and a brake disc matrix is obtained after cooling:

step S3: and placing the brake disc matrix in a coating room, spraying the coating on the surface of the brake disc matrix under the fixation and overturning of the fixing assembly, and cooling and attaching the coating to obtain the multi-point automobile brake disc.

Further, the hard particles are one or more of silicon carbide, titanium carbide, silicon nitride and titanium nitride with the particle size of 40-80 meshes and are mixed according to any proportion, and the binder is polyimide binder.

Further, the overcoat paint is prepared by the steps of:

step S11: weighing the following raw materials in parts by weight: 20-30 parts of aqueous polyurethane resin, 1-3 parts of aluminum oxide, 1-3 parts of zinc oxide, 3-5 parts of carbon fiber, 1-3 parts of defoamer, 1-3 parts of dispersant, 1-3 parts of pigment and filler, 1-3 parts of antirust agent, 1-3 parts of flatting agent, 1-3 parts of anti-settling agent and 20-40 parts of deionized water;

step S12: adding aqueous polyurethane resin and deionized water into a stirring kettle, stirring for 10-20min at the temperature of 70-80 ℃ and the rotating speed of 600-800r/min, then adding zinc oxide and carbon fiber, continuously stirring for 20-30min, and obtaining a mixed material I after stirring is finished;

step S13: adding the first mixed material into a ball mill, and grinding for 1-2 hours under the condition of 1500-2000r/min to obtain grinding slurry; and then adding the grinding slurry, the defoamer, the dispersant, the pigment and filler, the antirust agent, the leveling agent and the anti-settling agent into a stirring kettle together, stirring for 30-40min at the temperature of 60-80 ℃ and the rotating speed of 1200-1800r/min, and sieving with a 80-mesh sieve after stirring to obtain the coating.

Further, the defoaming agent is any one of linseed oil, oil animal oil, polysiloxane defoaming agent and polyether modified silicone oil defoaming agent; the dispersing agent is any one of triethylhexyl phosphoric acid, sodium dodecyl sulfate, cellulose derivatives and polyacrylamide; the pigment filler is any one of titanium white, iron oxide red, iron oxide yellow, phthalocyanine green and carbon black; the antirust agent is any one of polyethylene glycol dioleate, petroleum sodium sulfonate and amide imidazoline; the leveling agent is polyether polyester modified organic siloxane leveling agent; the anti-settling agent is any one of organic bentonite and polyolefin wax.

Further, the brake disc preparation device comprises a prefabricating mechanism, a pouring mechanism, a coating mechanism, a bracket and a base, wherein the base is fixedly arranged above the bracket, and the prefabricating mechanism, the pouring mechanism and the coating mechanism are all arranged above the base;

the utility model provides a mould, including prefabricated mechanism, including stirring subassembly, supporting seat, fixed plate and baffle, stirring subassembly includes agitator tank, feed inlet one, agitator motor, (mixing) shaft, stirring vane, discharge gate one, heater one, ejection of compact pipeline, agitator motor locates the inside of motor frame, agitator tank fixed connection is in the below of motor frame, and the top of agitator tank is located to feed inlet one, shaft extension end of upper end and agitator motor of (mixing) shaft passes through shaft coupling fixed connection, stirring vane fixed mounting and the surface of (mixing) shaft, the inside that stirring shaft and stirring vane all are located the agitator tank, discharge gate one is located the bottom of agitator tank, the below of discharge gate one is equipped with movable partition, one side of movable partition is equipped with the connecting rod, and with the one end fixed connection of connecting rod, the opposite side of connecting rod is equipped with servo electric jar, the bottom of heater one fixed mounting in the agitator tank inner wall, the ejection of compact pipeline is located the below of movable partition, the outside of ejection of compact pipeline is equipped with the fixed frame, the fixed frame passes through spliced pole and fixed connection of fixed plate, the bottom of base and fixed connection of baffle one side are equipped with the bottom of the sliding support seat and the bottom of the sliding support, the sliding support is equipped with the sliding support, sliding support is equipped with the inside of sliding support.

Further, pouring mechanism includes melting case and support frame, two lateral walls of melting case pass through axis of rotation fixed connection with the both sides of support frame, the axis of rotation is equipped with two, the one end of axis of rotation runs through the lateral wall of support frame, and rotates with the inside of support frame lateral wall to be connected, the other end of axis of rotation and the lateral wall fixed connection of melting case, the top of melting case is equipped with feed inlet two, the inside of melting case is equipped with heater two, and the lower extreme that is close to prefabricated mechanism one side of melting case is equipped with discharge gate two.

Further, the mechanism of filming includes coating room and fixed subassembly, fixed subassembly is located the inside of coating room, fixed subassembly is equipped with four, four fixed subassemblies are fixed connection respectively in four faces about the upper and lower of coating room inner wall, fixed subassembly includes connecting plate, electric push rod, arc and fixed block, one side of connecting plate and the inner wall fixed connection of coating room, the opposite side and the one end fixed connection of electric push rod of connecting plate, the drive end and the surface fixed connection of arc of electric push rod, the internal surface and the one end fixed connection of fixed block of arc, the inside of coating room inner wall left and right sides is equipped with the rotation motor, and the output shaft of two rotation motors respectively with the inside fixed connection of connecting plate of being fixed in coating room inner wall left and right sides.

Further, the bottom of the bracket is fixedly connected with an anti-skid pad at the positions of the four vertex angles.

A manufacturing process of a brake disc of a multipoint automobile brake disc specifically comprises the following steps:

step S1: adding hard substrate particles, a binder and borax into a stirring box of a brake disc preparation device from a first feed inlet of the stirring box, starting a stirring motor and a first heater, setting the rotating speed to be 400-600r/min, stirring for 10-20min at the temperature of 70-80 ℃, obtaining a first mixed material after stirring, starting a servo electric cylinder, enabling a connecting rod to drive a movable partition plate to move towards one side of the servo electric cylinder, enabling the first mixed material to enter a discharge pipeline through the first discharge port, and then entering the interior of a molding cavity from the discharge pipeline, and cooling and molding to obtain a precast block;

step S2: the method comprises the steps that firstly, gray cast iron is added into a melting box from a feeding port II, a heater II is started to enable the gray cast iron to be heated and melted in the melting box, a motor of a gear is started to enable a bottom plate with a rack meshed with the gear to move towards the melting box along with the precast block in a casting cavity, when the bottom plate moves to a discharging port II of the melting box, a rotating shaft in the middle of a supporting frame rotates to drive the melting box to incline, molten cast iron is poured into the casting cavity from the discharging port II, and a brake disc matrix is obtained after cooling:

step S3: and placing the brake disc matrix in a coating room, spraying the coating on the surface of the brake disc matrix under the fixation and overturning of the fixing assembly, and cooling and attaching the coating to obtain the multi-point automobile brake disc.

(III) beneficial effects

The invention provides a multi-point type automobile brake disc and a brake disc manufacturing process. Compared with the prior art, the method has the following beneficial effects: according to the invention, hard particles such as silicon carbide, titanium carbide, silicon nitride, titanium nitride and the like are used as a brake disc base material, a layer of gray cast iron is poured on the surface of the precast block after an adhesive and a borax infiltration assisting agent are added, wherein the adhesive can well ensure the compactness among the hard particles, so that the gray cast iron liquid is not easy to disperse during pouring, the infiltration assisting agent can enable the gray cast iron liquid to better perform gaps of the precast block, the hard particles are enabled to be quickly melted and dispersed in the gray cast iron liquid to further strengthen the integral strength of the brake disc, a layer of wear-resistant and high-temperature-resistant coating is coated on the outer surface of the brake disc, the corrosion-resistant and wear-resistant performance of the brake disc is further improved, a brake disc preparation device is used during preparation, firstly, the stirring box of a precast mechanism is utilized to heat and mix the hard particles, the adhesive and the infiltration assisting agent, a switch partition plate is opened after the mixing is finished, so that a mixed material enters the inside a casting cavity through a discharging pipeline, the preparation of the precast product is completed, then the gear rotates and interacts with a rack of a lower sliding frame, then the lower sliding frame is enabled to move towards the direction of the casting box, the inside the casting box, the gray cast iron liquid is enabled to be further cooled, the inner part is enabled to be convenient to be coated, and the working efficiency is enabled to be easy to be cooled, and the inside is enabled to be cooled, and the inside the casting cavity is formed, and the brake disc is cooled, and the working is easy to be coated, and is cooled, and the inside is subjected to be subjected to and to a cooling and is subjected to a cooling and to a molding and a substrate.

Drawings

FIG. 1 is a schematic structural view of a brake disc manufacturing apparatus of the present invention;

FIG. 2 is a schematic cross-sectional view of a brake disc manufacturing apparatus of the present invention;

FIG. 3 is a schematic structural view of a stirring assembly of the brake disc manufacturing apparatus of the present invention;

FIG. 4 is a schematic view of the structure of the movable partition of the brake disc manufacturing apparatus of the present invention;

FIG. 5 is an enlarged schematic view of the invention at A in FIG. 2;

FIG. 6 is a schematic top view of a mold cavity of the brake disc manufacturing apparatus of the present invention;

FIG. 7 is a schematic structural view of a casting mechanism of the brake disc manufacturing apparatus of the present invention;

fig. 8 is a schematic structural view of a fixing assembly of the brake disc manufacturing apparatus of the present invention.

In the figure, 1, a prefabrication mechanism; 11. a stirring assembly; 12. a support base; 13. a fixing plate; 14. a baffle; 15. a stirring tank; 16. a first feeding port; 17. a stirring motor; 18. a stirring shaft; 19. stirring blades; 110. a first discharging hole; 111. a first heater; 112. a discharge pipe; 113. a movable partition; 114. a connecting rod; 115. a servo electric cylinder; 116. a fixed frame; 117. an upper support base; 118. a lower sliding seat; 119. a rack; 120. a gear; 121. a mold cavity; 2. pouring mechanism; 21. a melting tank; 22. a support frame; 23. a rotating shaft; 24. a second feeding port; 25. a second heater; 26. a second discharging port; 3. a film coating mechanism; 31. a paint chamber; 32. a fixing assembly; 33. a connecting plate; 34. an electric push rod; 35. an arc-shaped plate; 36. a fixed block; 4. a bracket; 41. an anti-slip pad; 5. and (5) a base.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1-8, a manufacturing process of a multi-point automobile brake disc and the brake disc comprises the following raw materials in parts by weight: 60 parts of hard substrate particles, 1 part of binder, 0.5 part of borax, 30 parts of gray cast iron and 10 parts of overcoating paint;

the multipoint automobile brake disc is manufactured by the following steps:

step S1: adding hard substrate particles, a binder and borax into the stirring box 15 from a first feed port 16 of the stirring box 15 of the brake disc preparation device, starting a stirring motor 17 and a first heater 111, setting the rotating speed to 400r/min, stirring for 10min at the temperature of 70 ℃, obtaining a first mixed material after stirring, starting a servo cylinder 115, enabling a connecting rod 114 to drive a movable partition plate 113 to move towards one side of the servo cylinder 115, enabling the first mixed material to enter a discharge pipeline 112 through a first discharge port 110, and then entering the interior of a molding cavity 121 from the discharge pipeline 112, and cooling and molding to obtain a precast block;

step S2: simultaneously, the gray cast iron is added into the melting box 21 from the second feeding hole 24, the second heater 25 is started to heat and melt the gray cast iron in the melting box 21, when the preparation of the precast block is finished, the motor of the gear 120 is started, the precast block in the bottom plate of the rack 119 meshed with the gear 120 is moved towards the melting box 21 along the direction of the casting cavity 121, when the precast block is moved to the second discharging hole 26 of the melting box 21, the rotating shaft 23 in the middle of the supporting frame 22 rotates to drive the melting box 21 to incline, the melted cast iron is poured into the casting cavity 121 from the second discharging hole 26, and a brake disc matrix is obtained after cooling:

step S3: the brake disc substrate is placed in a coating chamber 31, the outer coating is sprayed on the surface of the brake disc substrate under the fixation and turnover of a fixing component 32, and after the outer coating is cooled and attached, the multi-point automobile brake disc is obtained.

The outer coating is prepared by the following steps:

step S11: weighing the following raw materials in parts by weight: 20 parts of aqueous polyurethane resin, 1 part of aluminum oxide, 1 part of zinc oxide, 3 parts of carbon fiber, 1 part of defoamer, 1 part of dispersant, 1 part of pigment and filler, 1 part of antirust agent, 1 part of flatting agent, 1 part of anti-settling agent and 20 parts of deionized water;

step S12: adding aqueous polyurethane resin and deionized water into a stirring kettle, stirring for 10min at the temperature of 70 ℃ and the rotating speed of 600r/min, then adding zinc oxide and carbon fiber, continuously stirring for 20min, and obtaining a first mixed material after stirring;

step S13: adding the first mixed material into a ball mill, and grinding for 1h under the condition of 1500r/min to obtain grinding slurry; and then adding the grinding slurry, the defoamer, the dispersant, the pigment and filler, the antirust agent, the leveling agent and the anti-settling agent into a stirring kettle together, stirring for 30min at the temperature of 60 ℃ and the rotating speed of 1200r/min, and sieving with a 80-mesh sieve after stirring to obtain the overcoating paint.

Example 2

Referring to fig. 1-8, a manufacturing process of a multi-point automobile brake disc and the brake disc comprises the following raw materials in parts by weight: 70 parts of hard substrate particles, 2 parts of binder, 0.75 part of borax, 40 parts of gray cast iron and 15 parts of overcoating paint;

the multipoint automobile brake disc is manufactured by the following steps:

step S1: adding hard substrate particles, a binder and borax into the stirring box 15 from a first feed port 16 of the stirring box 15 of the brake disc preparation device, starting a stirring motor 17 and a first heater 111, setting the rotating speed to be 500r/min, stirring for 15min at the temperature of 75 ℃, obtaining a first mixed material after stirring, starting a servo cylinder 115, enabling a connecting rod 114 to drive a movable partition plate 113 to move towards one side of the servo cylinder 115, enabling the first mixed material to enter a discharge pipeline 112 through a first discharge port 110, and then entering the interior of a molding cavity 121 from the discharge pipeline 112, and cooling and molding to obtain a precast block;

step S2: simultaneously, the gray cast iron is added into the melting box 21 from the second feeding hole 24, the second heater 25 is started to heat and melt the gray cast iron in the melting box 21, when the preparation of the precast block is finished, the motor of the gear 120 is started, the precast block in the bottom plate of the rack 119 meshed with the gear 120 is moved towards the melting box 21 along the direction of the casting cavity 121, when the precast block is moved to the second discharging hole 26 of the melting box 21, the rotating shaft 23 in the middle of the supporting frame 22 rotates to drive the melting box 21 to incline, the melted cast iron is poured into the casting cavity 121 from the second discharging hole 26, and a brake disc matrix is obtained after cooling:

step S3: the brake disc substrate is placed in a coating chamber 31, the outer coating is sprayed on the surface of the brake disc substrate under the fixation and turnover of a fixing component 32, and after the outer coating is cooled and attached, the multi-point automobile brake disc is obtained.

The outer coating is prepared by the following steps:

step S11: weighing the following raw materials in parts by weight: 25 parts of aqueous polyurethane resin, 2 parts of aluminum oxide, 2 parts of zinc oxide, 4 parts of carbon fiber, 2 parts of defoamer, 2 parts of dispersant, 2 parts of pigment and filler, 2 parts of antirust agent, 2 parts of flatting agent, 2 parts of anti-settling agent and 30 parts of deionized water;

step S12: adding aqueous polyurethane resin and deionized water into a stirring kettle, stirring for 15min at the temperature of 75 ℃ and the rotating speed of 700r/min, then adding zinc oxide and carbon fiber, continuously stirring for 25min, and obtaining a first mixed material after stirring;

step S13: adding the first mixed material into a ball mill, and grinding for 1h under the condition of 1750r/min to obtain grinding slurry; and then adding the grinding slurry, the defoamer, the dispersant, the pigment and filler, the antirust agent, the leveling agent and the anti-settling agent into a stirring kettle together, stirring for 35min at the temperature of 70 ℃ and the rotating speed of 1500r/min, and sieving with a 80-mesh sieve after stirring to obtain the overcoating paint.

Example 3

Referring to fig. 1-8, a manufacturing process of a multi-point automobile brake disc and the brake disc comprises the following raw materials in parts by weight: 80 parts of hard substrate particles, 3 parts of binder, 1 part of borax, 50 parts of gray cast iron and 20 parts of overcoating paint;

the multipoint automobile brake disc is manufactured by the following steps:

step S1: adding hard substrate particles, a binder and borax into the stirring box 15 from a first feed port 16 of the stirring box 15 of the brake disc preparation device, starting a stirring motor 17 and a first heater 111, setting the rotating speed to 600r/min, stirring at 80 ℃ for 20min under the condition, obtaining a first mixed material after stirring, starting a servo cylinder 115, enabling a connecting rod 114 to drive a movable partition plate 113 to move towards one side of the servo cylinder 115, enabling the first mixed material to enter a discharge pipeline 112 through a first discharge port 110, and then entering the interior of a molding cavity 121 from the discharge pipeline 112, and cooling and molding to obtain a precast block;

step S2: simultaneously, the gray cast iron is added into the melting box 21 from the second feeding hole 24, the second heater 25 is started to heat and melt the gray cast iron in the melting box 21, when the preparation of the precast block is finished, the motor of the gear 120 is started, the precast block in the bottom plate of the rack 119 meshed with the gear 120 is moved towards the melting box 21 along the direction of the casting cavity 121, when the precast block is moved to the second discharging hole 26 of the melting box 21, the rotating shaft 23 in the middle of the supporting frame 22 rotates to drive the melting box 21 to incline, the melted cast iron is poured into the casting cavity 121 from the second discharging hole 26, and a brake disc matrix is obtained after cooling:

step S3: the brake disc substrate is placed in a coating chamber 31, the outer coating is sprayed on the surface of the brake disc substrate under the fixation and turnover of a fixing component 32, and after the outer coating is cooled and attached, the multi-point automobile brake disc is obtained.

The outer coating is prepared by the following steps:

step S11: weighing the following raw materials in parts by weight: 30 parts of aqueous polyurethane resin, 3 parts of aluminum oxide, 3 parts of zinc oxide, 5 parts of carbon fiber, 3 parts of defoamer, 3 parts of dispersant, 3 parts of pigment and filler, 3 parts of antirust agent, 3 parts of flatting agent, 3 parts of anti-settling agent and 40 parts of deionized water;

step S12: adding aqueous polyurethane resin and deionized water into a stirring kettle, stirring for 20min at the temperature of 80 ℃ and the rotating speed of 800r/min, then adding zinc oxide and carbon fiber, continuously stirring for 30min, and obtaining a first mixed material after stirring;

step S13: adding the first mixed material into a ball mill, and grinding for 2 hours under the condition of 2000r/min to obtain grinding slurry; and then adding the grinding slurry, the defoamer, the dispersant, the pigment and filler, the antirust agent, the leveling agent and the anti-settling agent into a stirring kettle together, stirring for 40min at the temperature of 80 ℃ and the rotating speed of 1800r/min, and sieving with a 80-mesh sieve after stirring to obtain the external coating.

The brake disc preparation device used in the embodiments 1-3 comprises a prefabrication mechanism 1, a pouring mechanism 2, a coating mechanism 3, a bracket 4 and a base 5, wherein the base 5 is fixedly arranged above the bracket 4, and the prefabrication mechanism 1, the pouring mechanism 2 and the coating mechanism 3 are all arranged above the base 5;

the prefabrication mechanism 1 comprises a stirring assembly 11, a supporting seat 12, a fixed plate 13 and a baffle plate 14, wherein the stirring assembly 11 comprises a stirring box 15, a first feeding port 16, a stirring motor 17, a stirring shaft 18, stirring blades 19, a first discharging port 110, a first heater 111 and a discharging pipeline 112, the stirring motor 17 is arranged in a motor frame, the stirring box 15 is fixedly connected below the motor frame, the first feeding port 16 is arranged at the top of the stirring box 15, the upper end of the stirring shaft 18 is fixedly connected with the shaft extension end of the stirring motor 17 through a coupler, the stirring blades 19 are fixedly arranged on the outer surface of the stirring shaft 18, the stirring shaft 18 and the stirring blades 19 are positioned in the stirring box 15, the first discharging port 110 is positioned at the bottom of the stirring box 15, a movable partition 113 is arranged below the first discharging port 110, one side of the movable partition 113 is provided with a connecting rod 114, the other side of the connecting rod 114 is provided with a servo electric cylinder 115, the first heater 111 is fixedly arranged at the bottom of the inner wall of the stirring box 15, the movable partition 113 is fixedly arranged below the connecting rod 113, the movable partition 113 is fixedly connected with the upper side of the sliding frame 116, the upper side of the sliding frame is fixedly arranged at the bottom of the sliding frame 116 is fixedly connected with the sliding frame 116, the sliding frame 116 is fixedly arranged at the bottom of the sliding frame 116 is fixedly arranged at the sliding frame 116, the sliding frame is fixedly arranged at the bottom of the sliding frame 116, and is fixedly connected with the upper side of the sliding frame 116, and the sliding frame is fixedly arranged at the bottom of the upper side of the sliding frame, and the upper side of the sliding frame is fixedly connected with the upper side of the upper frame, and the upper side of the base, and the base is fixed base, and the base is fixed and the base, and the base is fixed and the base. The top center of the lower slide base 118 is provided with a mold cavity 121.

The pouring mechanism 2 comprises a melting box 21 and a supporting frame 22, two side walls of the melting box 21 are fixedly connected with two sides of the supporting frame 22 through rotating shafts 23, two rotating shafts 23 are arranged, one end of each rotating shaft 23 penetrates through the side wall of the supporting frame 22 and is rotationally connected with the inside of the side wall of the supporting frame 22, the other end of each rotating shaft 23 is fixedly connected with the side wall of the melting box 21, a second feeding port 24 is formed in the top of the melting box 21, a second heater 25 is arranged in the melting box 21, and a second discharging port 26 is formed in the lower end of the melting box 21, which is close to one face of the prefabricating mechanism 1.

The coating mechanism 3 comprises a coating chamber 31 and fixing components 32, the fixing components 32 are located inside the coating chamber 31, the fixing components 32 are four, the four fixing components 32 are fixedly connected to the upper surface, the lower surface, the left surface and the right surface of the inner wall of the coating chamber 31 respectively, the fixing components 32 comprise a connecting plate 33, an electric push rod 34, an arc plate 35 and a fixing block 36, one side of the connecting plate 33 is fixedly connected with the inner wall of the coating chamber 31, the other side of the connecting plate 33 is fixedly connected with one end of the electric push rod 34, the driving end of the electric push rod 34 is fixedly connected with the outer surface of the arc plate 35, the inner surface of the arc plate 35 is fixedly connected with one end of the fixing block 36, rotating motors are arranged inside the left side and the right side of the inner wall of the coating chamber 31, and output shafts of the two rotating motors are fixedly connected with the inner parts of the connecting plate 33 fixed on the left side and the right side of the inner wall of the coating chamber 31 respectively.

The bottom of the bracket 4 is fixedly connected with an anti-slip pad 41 at the positions of four vertex angles.

And all that is not described in detail in this specification is well known to those skilled in the art.

The working principle is that when in use, the multi-point automobile brake disc and the manufacturing process of the brake disc.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A multipoint type automobile brake disc is characterized in that: comprises the following raw materials in parts by weight: 60-80 parts of hard substrate particles, 1-3 parts of binder, 0.5-1 part of borax, 30-50 parts of gray cast iron and 10-20 parts of overcoating paint;

the multipoint automobile brake disc is manufactured by the following steps:

step S1: adding hard substrate particles, a binder and borax into a stirring box (15) of a brake disc preparation device from a first feed inlet (16) of the stirring box (15), starting a stirring motor (17) and a first heater (111), setting the rotating speed to be 400-600r/min, stirring at 70-80 ℃ for 10-20min under the condition, obtaining a first mixed material after stirring, starting a servo cylinder (115), enabling a connecting rod (114) to drive a movable partition plate (113) to move towards one side of the servo cylinder (115), enabling the first mixed material to enter a discharge pipeline (112) through a first discharge outlet (110), and then entering the interior of a molding cavity (121) from the discharge pipeline (112), and cooling and molding to obtain a precast block;

step S2: simultaneously, adding gray cast iron into a melting box (21) from a second feeding hole (24), starting a second heater (25) to enable the gray cast iron to be heated and melted in the melting box (21), starting a motor of a gear (120) to enable a bottom plate of a rack (119) meshed with the gear (120) to move towards the melting box (21) along with the precast block in a casting cavity (121), and when the precast block moves to a second discharging hole (26) of the melting box (21), rotating a rotating shaft (23) in the middle of a supporting frame (22) to drive the melting box (21) to incline, pouring the melted cast iron into the casting cavity (121) from the second discharging hole (26), and cooling to obtain a brake disc matrix:

step S3: placing a brake disc matrix in a coating chamber (31), spraying an outer coating on the surface of the brake disc matrix under the fixation and overturning of a fixing assembly (32), and obtaining the multi-point automobile brake disc after the outer coating is cooled and attached;

the outer coating is prepared by the following steps:

step S11: weighing the following raw materials in parts by weight: 20-30 parts of aqueous polyurethane resin, 1-3 parts of aluminum oxide, 1-3 parts of zinc oxide, 3-5 parts of carbon fiber, 1-3 parts of defoamer, 1-3 parts of dispersant, 1-3 parts of pigment and filler, 1-3 parts of antirust agent, 1-3 parts of flatting agent, 1-3 parts of anti-settling agent and 20-40 parts of deionized water;

step S12: adding aqueous polyurethane resin and deionized water into a stirring kettle, stirring for 10-20min at the temperature of 70-80 ℃ and the rotating speed of 600-800r/min, then adding zinc oxide and carbon fiber, continuously stirring for 20-30min, and obtaining a mixed material I after stirring is finished;

step S13: adding the first mixed material into a ball mill, and grinding for 1-2 hours under the condition of 1500-2000r/min to obtain grinding slurry; and then adding the grinding slurry, the defoamer, the dispersant, the pigment and filler, the antirust agent, the leveling agent and the anti-settling agent into a stirring kettle together, stirring for 30-40min at the temperature of 60-80 ℃ and the rotating speed of 1200-1800r/min, and sieving with a 80-mesh sieve after stirring to obtain the coating.

2. A multi-point automotive brake disc according to claim 1, characterized in that: the hard base material particles are one or more of silicon carbide, titanium carbide, silicon nitride and titanium nitride with the particle size of 40-80 meshes and are mixed according to any proportion, and the binder is polyimide type binder.

3. A multi-point automotive brake disc according to claim 2, characterized in that: the defoaming agent is any one of linseed oil, oil animal oil, polysiloxane defoaming agent and polyether modified silicone oil defoaming agent; the dispersing agent is any one of triethylhexyl phosphoric acid, sodium dodecyl sulfate, cellulose derivatives and polyacrylamide; the pigment filler is any one of titanium white, iron oxide red, iron oxide yellow, phthalocyanine green and carbon black; the antirust agent is any one of polyethylene glycol dioleate, petroleum sodium sulfonate and amide imidazoline; the leveling agent is polyether polyester modified organic siloxane leveling agent; the anti-settling agent is any one of organic bentonite and polyolefin wax.

4. A multi-point automotive brake disc according to claim 1, characterized in that: the brake disc preparation device comprises a prefabricating mechanism (1), a pouring mechanism (2), a coating mechanism (3), a support (4) and a base (5), wherein the base (5) is fixedly arranged above the support (4), and the prefabricating mechanism (1), the pouring mechanism (2) and the coating mechanism (3) are all arranged above the base (5);

the prefabrication mechanism (1) comprises a stirring assembly (11), a supporting seat (12), a fixed plate (13) and a baffle plate (14), the stirring assembly (11) comprises a stirring box (15), a first feeding port (16), a stirring motor (17), a stirring shaft (18), stirring blades (19), a first discharging port (110), a first heater (111) and a discharging pipeline (112), the stirring motor (17) is arranged in a motor frame, the stirring box (15) is fixedly connected to the lower part of the motor frame, the first feeding port (16) is arranged at the top of the stirring box (15), the upper end of the stirring shaft (18) is fixedly connected with the shaft extension end of the stirring motor (17) through a coupler, the stirring blades (19) are fixedly arranged on the outer surface of the stirring shaft (18), the stirring shaft (18) and the stirring blades (19) are both positioned in the stirring box (15), the first discharging port (110) is positioned at the bottom of the stirring box (15), a movable baffle plate (113) is arranged below the first discharging port (110), one side of the movable baffle plate (113) is provided with a connecting rod (114), one side of the connecting rod (114) is fixedly connected with a servo cylinder (114), the heater one (111) fixed mounting is in the bottom of agitator tank (15) inner wall, ejection of compact pipeline (112) are located the below of activity baffle (113), the outside of ejection of compact pipeline (112) is equipped with fixed frame (116), fixed frame (116) are through spliced pole and fixed plate (13) fixed connection, the bottom of baffle (14) and the top fixed connection of base (5) one side, supporting seat (12) are equipped with supporting seat (117) and lower sliding seat (118), go up sliding connection between supporting seat (117) and lower sliding seat (118), fixed frame (116) and fixed plate (13) fixed mounting are in the inside of last supporting seat (117), the bottom of lower sliding seat (118) is equipped with rack (119), the inside of base (5) is equipped with gear (120) with rack (119) engaged with, the top central point of lower sliding seat (118) is equipped with casting die cavity (121).

5. A multi-point automotive brake disc according to claim 4, wherein: pouring mechanism (2) including melting case (21) and support frame (22), two lateral walls of melting case (21) and the both sides of support frame (22) are through axis of rotation (23) fixed connection, axis of rotation (23) are equipped with two, the one end of axis of rotation (23) runs through the lateral wall of support frame (22), and is connected with the inside rotation of support frame (22) lateral wall, the other end of axis of rotation (23) and the lateral wall fixed connection of melting case (21), the top of melting case (21) is equipped with feed inlet two (24), the inside of melting case (21) is equipped with heater two (25), and the lower extreme that is close to prefabrication mechanism (1) one side of melting case (21) is equipped with discharge gate two (26).

6. A multi-point automotive brake disc according to claim 4, wherein: the coating mechanism (3) comprises a coating chamber (31) and fixing components (32), the fixing components (32) are located in the coating chamber (31), the fixing components (32) are four, the four fixing components (32) are fixedly connected to the upper surface, the lower surface, the left surface and the right surface of the inner wall of the coating chamber (31) respectively, the fixing components (32) comprise a connecting plate (33), an electric push rod (34), an arc plate (35) and a fixing block (36), one side of the connecting plate (33) is fixedly connected with the inner wall of the coating chamber (31), the other side of the connecting plate (33) is fixedly connected with one end of the electric push rod (34), the driving end of the electric push rod (34) is fixedly connected with the outer surface of the arc plate (35), the inner surface of the arc plate (35) is fixedly connected with one end of the fixing block (36), rotating motors are arranged in the inner side of the inner wall of the coating chamber (31), and the output shafts of the two rotating motors are fixedly connected with the inner side of the connecting plate (33) fixed on the left side and the right side of the inner wall of the coating chamber (31) respectively.

7. A multi-point automotive brake disc according to claim 4, wherein: the bottom of the bracket (4) is fixedly connected with an anti-slip pad (41) at the positions of four vertex angles.

8. The brake disc manufacturing process of the multipoint type automobile brake disc according to claim 1, wherein the brake disc manufacturing process comprises the following steps of: the method specifically comprises the following steps of S1: adding hard substrate particles, a binder and borax into a stirring box (15) of a brake disc preparation device from a first feed inlet (16) of the stirring box (15), starting a stirring motor (17) and a first heater (111), setting the rotating speed to be 400-600r/min, stirring at 70-80 ℃ for 10-20min under the condition, obtaining a first mixed material after stirring, starting a servo cylinder (115), enabling a connecting rod (114) to drive a movable partition plate (113) to move towards one side of the servo cylinder (115), enabling the first mixed material to enter a discharge pipeline (112) through a first discharge outlet (110), and then entering the interior of a molding cavity (121) from the discharge pipeline (112), and cooling and molding to obtain a precast block;

step S2: simultaneously, adding gray cast iron into a melting box (21) from a second feeding hole (24), starting a second heater (25) to enable the gray cast iron to be heated and melted in the melting box (21), starting a motor of a gear (120) to enable a bottom plate of a rack (119) meshed with the gear (120) to move towards the melting box (21) along with the precast block in a casting cavity (121), and when the precast block moves to a second discharging hole (26) of the melting box (21), rotating a rotating shaft (23) in the middle of a supporting frame (22) to drive the melting box (21) to incline, pouring the melted cast iron into the casting cavity (121) from the second discharging hole (26), and cooling to obtain a brake disc matrix:

step S3: and placing the brake disc matrix in a coating room (31), spraying the coating on the surface of the brake disc matrix under the fixation and overturning of a fixing assembly (32), and cooling and attaching the coating to obtain the multi-point automobile brake disc.

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