CN108869586A - A kind of brake holder and its production technology based on air-pressure disc type brake pincers - Google Patents

A kind of brake holder and its production technology based on air-pressure disc type brake pincers Download PDF

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Publication number
CN108869586A
CN108869586A CN201811037113.3A CN201811037113A CN108869586A CN 108869586 A CN108869586 A CN 108869586A CN 201811037113 A CN201811037113 A CN 201811037113A CN 108869586 A CN108869586 A CN 108869586A
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CN
China
Prior art keywords
inspection
brake
carried
disc type
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811037113.3A
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Chinese (zh)
Inventor
李华
高平平
曹志强
卢晓丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGXIA ZHONGXIN MACHINERY EQUIPMENT CO Ltd
Original Assignee
NINGXIA ZHONGXIN MACHINERY EQUIPMENT CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NINGXIA ZHONGXIN MACHINERY EQUIPMENT CO Ltd filed Critical NINGXIA ZHONGXIN MACHINERY EQUIPMENT CO Ltd
Priority to CN201811037113.3A priority Critical patent/CN108869586A/en
Publication of CN108869586A publication Critical patent/CN108869586A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/02Braking members; Mounting thereof
    • F16D65/04Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095Pivots or supporting members therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/02Sand moulds or like moulds for shaped castings
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00Refining of pig-iron; Cast iron
    • C21C1/10Making spheroidal graphite cast-iron
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C33/00Making ferrous alloys
    • C22C33/08Making cast-iron alloys

Abstract

The invention discloses a kind of brake holders based on air-pressure disc type brake pincers, are related to disk brake technical field.The present invention includes U-shaped body frame, one surface of U-shaped body frame is fixed with one group of boom, a reinforced column is fixed between two booms, U-shaped body frame and one surface of reinforced column are equipped with installation protrusion, one surface of U-shaped body frame offers one group of first notch, it is easily installed brake holder by being equipped with installation protrusion and the first notch, U-shaped body frame is made of one group of branch wall and an arc panel, and branch wall one side is equipped with one group of flat face.The present invention passes through the analysis to melting matter progress chemical component, by carrying out sand mold inspection when roughing sand mixes, by carrying out nodularization analysis in spheroidization and inoculation, finally by the mode of sorting, outer inspection and interior inspection to finished product internal soundness, external mass and surface quality testing, solves the problems, such as when the production of existing brake holder that checking system is not perfect and cause intensity insufficient.

Description

A kind of brake holder and its production technology based on air-pressure disc type brake pincers
Technical field
The invention belongs to disk brake technical fields, more particularly to a kind of braking branch based on air-pressure disc type brake pincers Frame and its production technology.
Background technique
Disk brake is also known as disc brake, as the term suggests being to take its shape and gain the name, it is by hydraulic control, mainly Components have brake disc, wheel cylinder, caliper and oil pipe etc., and alloy steel for braking discs is manufactured and is fixed on wheel, turn with wheel It is dynamic.
The brake holder of caliper, which is used to support, to be made with fixing card caliper since the speed of wheel and brake disc is higher It will be needed to keep caliper brake holder into higher-strength by biggish load force in the brake holder of caliper when dynamic, it is existing It is not perfect to the checking system of brake holder blank and finished product when some caliper brake holders produce, can not effectively it guarantee The intensity of brake holder influences the service life of brake, it may occur that the problem of brake damage causes safety accident.
Summary of the invention
The purpose of the present invention is to provide a kind of brake holders and its production technology based on air-pressure disc type brake pincers, pass through The analysis that chemical component is carried out to melting matter, by carrying out sand mold inspection when roughing sand mixes, by being carried out in spheroidization and inoculation Nodularization analysis, finally by the mode of sorting, outer inspection and interior inspection to finished product internal soundness, external mass and surface quality testing, Solving the problems, such as when the production of existing brake holder that checking system is not perfect causes intensity insufficient.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions:
The present invention is a kind of brake holder based on air-pressure disc type brake pincers, including U-shaped body frame, one table of U-shaped body frame Face is fixed with one group of boom, and a reinforced column is fixed between two booms, and the U-shaped body frame and one surface of reinforced column are equipped with Installation protrusion, one surface of U-shaped body frame offer one group of first notch, by being equipped with installation protrusion and the first notch convenient for peace Fill brake holder.
Further, the U-shaped body frame is made of one group of branch wall and an arc panel, and the branch wall one side is equipped with one group and puts down It faces directly, several second threaded holes is offered on the flat face.
Further, wherein offering the first threaded hole in installation protrusion described in one group, the raised one side of the installation is set There is one group of second notch, second notch is blind mouth structure, is easily installed brake holder by the second notch.
Further, one surface of reinforced column is fixed with an arc locating plate, and the reinforced column side and arc position The distance between piece side is of same size with arc panel.
Further, a kind of production technology based on air-pressure disc type brake clamp brake bracket, includes the following steps:
SS01 ingredient:The raw mixture and roughing sand mixture of proper ratio are selected in raw material storage;
SS02 melting:It takes out raw mixture and is thrown into progress melting in smelting furnace, chemistry is carried out to melting matter in melting The analysis of ingredient adds poor ingredient by feeding device when fractions are not inconsistent standard into smelting furnace;
SS03 mulling:The constituent of sand is placed in mixing machine and is uniformly mixed, carries out sand mold inspection in mixing It tests, and carries out the adjustment of parameter in mixed process;
SS04 spheroidization and inoculation:Balling machine is added to the melting matter in smelting furnace and inovulant carries out spheroidization and inoculation, nodularization is pregnant Nodularization analysis is carried out when educating, analysis data are adjusted the ingredient of ingredient when not up to standard, and analysis data carry out secondary when up to standard It breeds;
The selection of SS05 mold:The mold of corresponding specification is selected in die storehouse, and selects corresponding specification in core tool library Sand core and die assembly are used for moulding by sand core;
SS06 pours comment entry:Material after late inoculation is subjected to moulding by casting, drop by the composition of mold and sand core Casting is disintegrated from mold after temperature;
SS07 sorting:Outer surface inspection is carried out to molding and end face checks, inspection is polished after reaching a standard, and is checked only Foundry returns is chosen as when pass, the ingredient for raw material;
SS08 polishing:Polishing and ball blast are carried out to each plane of molding using sander and shot-blasting machine;
It is examined outside SS09:Outer surface inspection is carried out to the molding after polishing, is the checkpoint for special characteristics, and carry out ball Change and taps inspection and dimensional gaughing;
Inspection in SS10:Select three moldings as sample, sample analysed, and using supersonic detector at The interior portion of analysing of type object detects a flaw, and is packed after upchecking, and examines and is not chosen as foundry returns later, for matching for raw material Material;
SS11 packaging:Antirust is carried out to finished surface coating lubricating oil after the assay was approved, is selected according to the size of packing box It selects and is packaged in packing box for the foam-rubber cushion of buffering;
SS12 storage:Packing box is deposited in inside the library.
Further, procedure inspection is carried out when the SS06 is poured, the check system of procedure inspection is metal lographic examination and group Part service check;
The metal lographic examination by GB/T9441 regulation execute, the metal lographic examination point be A-A at, at B-B, at C-C, D- At D and at E-E;
The method of inspection that the assembly property is examined:Constituent analysis must be carried out with spectrum or colorimetric method to every furnace molten iron, Last case product of every packet molten iron casting extracts a progress metallographic examination, must be strictly separated between packet and packet, every heat The worst blank of metallographic examination must be extracted and do tension test, test result should meet technical requirements, and every heat needs to provide Examining report.
Further, the special examined point in the SS09 is that reinforced column particular point, boom particular point, flat face are special Point installs raised particular point and arc column particular point, the portion of analysing on the SS10 is at A-A, at B-B, at C-C, at D-D and At E-E.
Further, the raw mixture in the SS01 include the pig iron, ferrosilicon, manganese iron, in red copper and SS07 and SS10 The foundry returns of exclusion, the roughing sand mixture in the SS01 includes roughing sand, coal dust and bentonite, and the raw mixture is in ingredient The ingredient that preceding and roughing sand mixture carries out raw material before mixing is examined.
The invention has the advantages that:
1, the present invention is by the analysis in melting to melting matter progress chemical component, when fractions are not inconsistent standard, Poor ingredient is added into smelting furnace by feeding device, by carrying out sand mold inspection in mixing, and in mixed process The middle adjustment for carrying out parameter, by carrying out nodularization analysis in spheroidization and inoculation, when analysis data are not up to standard to the ingredient of ingredient into Row adjustment, finally by the mode of sorting, outer inspection and interior inspection to finished product internal soundness, external mass and surface quality testing, energy Enough guarantee the yields of finished product, to guarantee that brake holder has high-intensitive performance, improves the service life of brake holder And safety.
2, the present invention can by being equipped with being used cooperatively for installation protrusion, the first notch, the second notch and arc locating plate Calibration and positioning, be easily installed and remove brake holder, convenient for users to installation, improve the installation effectiveness of caliper.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached Figure.
Fig. 1 is a kind of structural schematic diagram of brake holder based on air-pressure disc type brake pincers of the invention;
Fig. 2 is metal lographic examination point of the present invention and the structural schematic diagram for analysing portion;
Fig. 3 is the structural schematic diagram of special examined point of the present invention;
Fig. 4 is a kind of structural principle block diagram of production technology based on air-pressure disc type brake clamp brake bracket of the invention;
In attached drawing, parts list represented by the reference numerals are as follows:
1-U shape body frame, 2- boom, 3- reinforced column, 4- installation protrusion, the first notch of 5-, 101- branch wall, 102- arc panel, 103- flat face, the second threaded hole of 104-, 301- arc locating plate, the first threaded hole of 401-, the second notch of 402-, a- reinforced column Particular point, b- boom particular point, c- flat face particular point, d- install raised particular point, e- arc column particular point.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other Embodiment shall fall within the protection scope of the present invention.
Refering to Figure 1, the present invention is a kind of brake holder based on air-pressure disc type brake pincers, including U-shaped body frame 1, U 1 one surface of shape body frame is fixed with one group of boom 2, and a reinforced column 3,3 one table of U-shaped body frame 1 and reinforced column are fixed between two booms 2 Face is equipped with installation protrusion 4, and 1 one surface of U-shaped body frame offers one group of first notch 5, is lacked by being equipped with installation protrusion 4 and first Mouth 5 is easily installed brake holder.
Wherein as shown in Figure 1, U-shaped body frame 1 is made of one group of branch wall 101 and an arc panel 102,101 one side of branch wall is set There is one group of flat face 103, several second threaded holes 104 are offered on flat face 103.
Wherein as shown in Figure 1, wherein offering the first threaded hole 401 in one group of installation protrusion 4, raised 4 one sides are installed Equipped with one group of second notch 402, the second notch 402 is blind mouth structure, is easily installed brake holder by the second notch 402.
Wherein as shown in Figure 1,3 one surface of reinforced column is fixed with an arc locating plate 301,3 side of reinforced column and arc are fixed The distance between 301 side of bit slice is of same size with arc panel 102.
Wherein as in Figure 2-4, a kind of production technology based on air-pressure disc type brake clamp brake bracket, including following step Suddenly:
SS01 ingredient:The raw mixture and roughing sand mixture of proper ratio are selected in raw material storage;
SS02 melting:It takes out raw mixture and is thrown into progress melting in smelting furnace, chemistry is carried out to melting matter in melting The analysis of ingredient adds poor ingredient by feeding device when fractions are not inconsistent standard into smelting furnace;
SS03 mulling:The constituent of sand is placed in mixing machine and is uniformly mixed, carries out sand mold inspection in mixing It tests, and carries out the adjustment of parameter in mixed process;
SS04 spheroidization and inoculation:Balling machine is added to the melting matter in smelting furnace and inovulant carries out spheroidization and inoculation, nodularization is pregnant Nodularization analysis is carried out when educating, analysis data are adjusted the ingredient of ingredient when not up to standard, and analysis data carry out secondary when up to standard It breeds;
The selection of SS05 mold:The mold of corresponding specification is selected in die storehouse, and selects corresponding specification in core tool library Sand core and die assembly are used for moulding by sand core;
SS06 pours comment entry:Material after late inoculation is subjected to moulding by casting, drop by the composition of mold and sand core Casting is disintegrated from mold after temperature;
SS07 sorting:Outer surface inspection is carried out to molding and end face checks, inspection is polished after reaching a standard, and is checked only Foundry returns is chosen as when pass, the ingredient for raw material;
SS08 polishing:Polishing and ball blast are carried out to each plane of molding using sander and shot-blasting machine;
It is examined outside SS09:Outer surface inspection is carried out to the molding after polishing, is the checkpoint for special characteristics, and carry out ball Change and taps inspection and dimensional gaughing;
Inspection in SS10:Select three moldings as sample, sample analysed, and using supersonic detector at The interior portion of analysing of type object detects a flaw, and is packed after upchecking, and examines and is not chosen as foundry returns later, for matching for raw material Material;
SS11 packaging:Antirust is carried out to finished surface coating lubricating oil after the assay was approved, is selected according to the size of packing box It selects and is packaged in packing box for the foam-rubber cushion of buffering;
SS12 storage:Packing box is deposited in inside the library.
Wherein as shown in Fig. 2, SS06 carries out procedure inspection when being poured, the check system of procedure inspection is metal lographic examination and group Part service check;
Metal lographic examination is executed by the regulation of GB/T9441, and metal lographic examination point is at A-A, at B-B, at C-C, at D-D and E-E Place;
The method of inspection that assembly property is examined:Constituent analysis, every packet must be carried out with spectrum or colorimetric method to every furnace molten iron Last case product of molten iron casting extracts a progress metallographic examination, must be strictly separated between packet and packet, every heat is necessary It extracts the worst blank of metallographic examination and does tension test, test result should meet technical requirements, and every heat need to provide detection Report.
Wherein as shown in Figures 2 and 3, special examined point in SS09 be reinforced column particular point a, it is boom particular point b, straight The portion of analysing on face particular point c, installation protrusion particular point d and arc column particular point e, SS10 at A-A, at B-B, at C-C, D- At D and at E-E.
Wherein, the raw mixture in SS01 includes time excluded in the pig iron, ferrosilicon, manganese iron, red copper and SS07 and SS10 Furnace charge, the roughing sand mixture in SS01 include roughing sand, coal dust and bentonite, and raw mixture exists before ingredient with roughing sand mixture The ingredient that raw material is carried out before mixing is examined.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example. Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification, It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only It is limited by claims and its full scope and equivalent.

Claims (8)

1. a kind of brake holder based on air-pressure disc type brake pincers, including U-shaped body frame (1), it is characterised in that:The U-shaped body frame (1) one surface is fixed with one group of boom (2), is fixed with a reinforced column (3) between two booms (2), the U-shaped body frame (1) It is equipped with installation protrusion (4) with (3) one surface of reinforced column, (1) one surface of U-shaped body frame offers one group of first notch (5).
2. a kind of brake holder based on air-pressure disc type brake pincers according to claim 1, which is characterized in that the U-shaped Body frame (1) is made of one group of branch wall (101) and an arc panel (102), and branch wall (101) one side is equipped with one group of flat face (103), several second threaded holes (104) are offered on the flat face (103).
3. a kind of brake holder based on air-pressure disc type brake pincers according to claim 1, which is characterized in that wherein one group The installation offers the first threaded hole (401) on raised (4), and raised (4) one side of the installation is equipped with one group of second notch (402), second notch (402) is blind mouth structure.
4. a kind of brake holder based on air-pressure disc type brake pincers according to claim 1, which is characterized in that the reinforcing (3) one surface of column is fixed with an arc locating plate (301), between reinforced column (3) side and arc locating plate (301) side Distance and arc panel (102) it is of same size.
5. a kind of production technology based on air-pressure disc type brake clamp brake bracket as described in claim 1-4 is any one, special Sign is, includes the following steps:
SS01 ingredient:The raw mixture and roughing sand mixture of proper ratio are selected in raw material storage;
SS02 melting:It takes out raw mixture and is thrown into progress melting in smelting furnace, chemical component is carried out to melting matter in melting Analysis poor ingredient is added into smelting furnace by feeding device when fractions are not inconsistent standard;
SS03 mulling:The constituent of sand is placed in mixing machine and is uniformly mixed, sand mold inspection is carried out in mixing, and The adjustment of parameter is carried out in mixed process;
SS04 spheroidization and inoculation:To in smelting furnace melting matter addition balling machine and inovulant carry out spheroidization and inoculation, when spheroidization and inoculation Nodularization analysis is carried out, analysis data are adjusted the ingredient of ingredient when not up to standard, and analysis data carry out late inoculation when up to standard;
The selection of SS05 mold:The mold of corresponding specification is selected in die storehouse, and the sand core of corresponding specification is selected in core tool library, Sand core and die assembly are used for moulding;
SS06 pours comment entry:Material after late inoculation is subjected to moulding by casting by the composition of mold and sand core, after cooling Casting is disintegrated from mold;
SS07 sorting:Outer surface inspection is carried out to molding and end face checks, inspection is polished after reaching a standard, when checking unqualified It is chosen as foundry returns, the ingredient for raw material;
SS08 polishing:Polishing and ball blast are carried out to each plane of molding using sander and shot-blasting machine;
It is examined outside SS09:Outer surface inspection is carried out to the molding after polishing, is the checkpoint for special characteristics, and carry out nodularization and strike Hit inspection and dimensional gaughing;
Inspection in SS10:It selects three moldings as sample, sample is analysed, and using supersonic detector to molding The interior portion of analysing detect a flaw, packed after upchecking, examine later be not chosen as foundry returns, the ingredient for raw material;
SS11 packaging:Antirust is carried out to finished surface coating lubricating oil after the assay was approved, selects to use according to the size of packing box It is packaged in packing box in the foam-rubber cushion of buffering;
SS12 storage:Packing box is deposited in inside the library.
6. a kind of production technology based on air-pressure disc type brake clamp brake bracket according to claim 5, which is characterized in that The SS06 carries out procedure inspection when being poured, the check system of procedure inspection is that metal lographic examination and assembly property are examined;
The metal lographic examination is executed by the regulation of GB/T9441, and the metal lographic examination point is at A-A, at B-B, at C-C, at D-D At E-E;
The method of inspection that the assembly property is examined:Constituent analysis, every packet must be carried out with spectrum or colorimetric method to every furnace molten iron Last case product of molten iron casting extracts a progress metallographic examination, must be strictly separated between packet and packet, every heat is necessary It extracts the worst blank of metallographic examination and does tension test, test result should meet technical requirements, and every heat need to provide detection Report.
7. a kind of production technology based on air-pressure disc type brake clamp brake bracket according to claim 5, which is characterized in that Special examined point in the SS09 is that reinforced column particular point (a), boom particular point (b), flat face particular point (c), installation are convex Particular point (d) and arc column particular point (e) are played, the portion of analysing on the SS10 is at A-A, at B-B, at C-C, at D-D and E-E Place.
8. a kind of production technology based on air-pressure disc type brake clamp brake bracket according to claim 5, which is characterized in that Raw mixture in the SS01 includes the foundry returns excluded in the pig iron, ferrosilicon, manganese iron, red copper and SS07 and SS10, described Roughing sand mixture in SS01 includes roughing sand, coal dust and bentonite, and the raw mixture exists before ingredient with roughing sand mixture The ingredient that raw material is carried out before mixing is examined.
CN201811037113.3A 2018-09-06 2018-09-06 A kind of brake holder and its production technology based on air-pressure disc type brake pincers Pending CN108869586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811037113.3A CN108869586A (en) 2018-09-06 2018-09-06 A kind of brake holder and its production technology based on air-pressure disc type brake pincers

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Application Number Priority Date Filing Date Title
CN201811037113.3A CN108869586A (en) 2018-09-06 2018-09-06 A kind of brake holder and its production technology based on air-pressure disc type brake pincers

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CN108869586A true CN108869586A (en) 2018-11-23

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1123336A (en) * 1994-11-23 1996-05-29 河北铸造厂 Method for producing cast connecting rod of engine
CN1923412A (en) * 2006-09-25 2007-03-07 西峡县内燃机进排气管有限责任公司 High nickel austenite spheroidal graphite cast-iron gas exhaust branch pipe casting technique
CN106734895A (en) * 2016-12-21 2017-05-31 重庆市合川区银窝铸造厂 Casting technique for casting motorcycle wearing piece
CN107882897A (en) * 2013-10-04 2018-04-06 克诺尔商用车制动系统有限公司 The brake(-holder) block group of disk brake and disk brake
US20180223921A1 (en) * 2015-10-09 2018-08-09 Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh Disc Brake for a Utility Vehicle, and Brake Pad Set

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1123336A (en) * 1994-11-23 1996-05-29 河北铸造厂 Method for producing cast connecting rod of engine
CN1923412A (en) * 2006-09-25 2007-03-07 西峡县内燃机进排气管有限责任公司 High nickel austenite spheroidal graphite cast-iron gas exhaust branch pipe casting technique
CN107882897A (en) * 2013-10-04 2018-04-06 克诺尔商用车制动系统有限公司 The brake(-holder) block group of disk brake and disk brake
US20180223921A1 (en) * 2015-10-09 2018-08-09 Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh Disc Brake for a Utility Vehicle, and Brake Pad Set
CN106734895A (en) * 2016-12-21 2017-05-31 重庆市合川区银窝铸造厂 Casting technique for casting motorcycle wearing piece

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