CN107081868A - A kind of low-temperature setting technique of drum-type brake pad - Google Patents
A kind of low-temperature setting technique of drum-type brake pad Download PDFInfo
- Publication number
- CN107081868A CN107081868A CN201710400773.2A CN201710400773A CN107081868A CN 107081868 A CN107081868 A CN 107081868A CN 201710400773 A CN201710400773 A CN 201710400773A CN 107081868 A CN107081868 A CN 107081868A
- Authority
- CN
- China
- Prior art keywords
- drum
- brake pad
- low
- temperature setting
- type brake
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000004843 novolac epoxy resin Substances 0.000 claims abstract description 8
- 238000003303 reheating Methods 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 4
- 229920003986 novolac Polymers 0.000 claims description 4
- 229930185605 Bisphenol Natural products 0.000 claims description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical group C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 3
- 239000006227 byproduct Substances 0.000 claims description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000007711 solidification Methods 0.000 abstract description 6
- 230000008023 solidification Effects 0.000 abstract description 6
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- GJYLKIZKRHDRER-UHFFFAOYSA-N calcium;sulfuric acid Chemical compound [Ca].OS(O)(=O)=O GJYLKIZKRHDRER-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/52—Heating or cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/025—Compositions based on an organic binder
- F16D69/026—Compositions based on an organic binder containing fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2063/00—Use of EP, i.e. epoxy resins or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2103/00—Use of resin-bonded materials as moulding material
- B29K2103/04—Inorganic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2103/00—Use of resin-bonded materials as moulding material
- B29K2103/04—Inorganic materials
- B29K2103/06—Metal powders, metal carbides or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/16—Frictional elements, e.g. brake or clutch linings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/748—Machines or parts thereof not otherwise provided for
- B29L2031/7482—Brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0034—Materials; Production methods therefor non-metallic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
- F16D2200/0065—Inorganic, e.g. non-asbestos mineral fibres
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0082—Production methods therefor
- F16D2200/0086—Moulding materials together by application of heat and pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a kind of low-temperature setting technique of drum-type brake pad, comprise the following steps：A) mix, it is b) die-filling, c) once heat, d) reheating, e) cool down.The present invention coordinates Electromagnetic Heating by the way that auxiliary material is added in formula so that auxiliary material can improve temperature lifting speed, so as to save the time to a certain extent in heat production under electromagnetic action during Electromagnetic Heating；Addition novolac epoxy resin can effectively reduce solidification temperature, and curing rate is fast, greatlys save the energy, solidify the spent time while reducing, improve production efficiency.
Description
【Technical field】
The present invention relates to the technical field of the technical field of brake block, particularly brake block low-temperature setting.
【Background technology】
Brake is that the brake on automobile on an important part, automobile is broadly divided into drum-type and disc type.In drum brakes
Drum-type brake pad can be installed.Existing drum-type brake pad has a LOTES process in process of production.Existing low temperature
Of a relatively high, the energy for not only needing consumption more of the temperature of heating is needed in solidification process, at the same it is time-consuming also relatively long,
It is unfavorable for the raising of production efficiency.
【The content of the invention】
The purpose of the present invention is exactly to solve the problems of the prior art, proposes a kind of low-temperature solid chemical industry of drum-type brake pad
Skill, can reduce solidification temperature, while the time also can be saved.
To achieve the above object, the present invention proposes a kind of low-temperature setting technique of drum-type brake pad, comprises the following steps：
A) mix：Mixing is stirred by being added in agitating device for producing the basic components of brake block, in stirring
During addition auxiliary material and curing agent, auxiliary material is at least one of steel fibre and iron powder, and curing agent is epoxy novolac tree
Fat；
B) it is die-filling：Mixed liquor is poured into the mould with Electromagnetic Heating function；
C) once heat：Mixed liquor is heated to 55-65 DEG C using electromagnetic heating apparatus, continues 4-10 minutes；
D) reheating：Start after the completion of once heating and the content in mould is carried out with mould supporting pressurized equipment
Pressurization, while temperature is maintained into 90-100 DEG C, the heat-insulation pressure keeping time is 15-25 minutes；
E) cool down：Heat-insulation pressure keeping pulls out product after terminating from mould, by product cooling to normal temperature under normal temperature environment.
Preferably, the basic components for being used to produce brake block in the step a) mixing are Frication powder, barium sulfate, sulfuric acid
Calcium pyroborate, glass fibre, calcium hydroxide, calcium oxide, magnesia, liquid resin.
Preferably, the Electromagnetic Heating is provided with hermatic door, hermatic door is in air-tight state in internal heating space after closing.
Preferably, the novolac epoxy resin is bisphenol f type epoxy resin.
Preferably, the novolac epoxy resin and the mass ratio of basic components are 1:9-3:10.
Preferably, the auxiliary material and the mass ratio of basic components are 2:7-3:8.
Preferably, the auxiliary material is the mixture of steel fibre and iron powder, the mass ratio of steel fibre and iron powder is 1.5:
1-1:1。
Beneficial effects of the present invention：The present invention coordinates Electromagnetic Heating so that electromagnetism by the way that auxiliary material is added in formula
Auxiliary material can improve temperature lifting speed, so as to save the time to a certain extent in heat production under electromagnetic action during heating；
Addition novolac epoxy resin can effectively reduce solidification temperature, and curing rate is fast, greatlys save the energy, reduces simultaneously
Solidification the spent time, improve production efficiency.
The feature and advantage of the present invention will be described in detail by embodiment.
【Embodiment】
A kind of low-temperature setting technique of drum-type brake pad of the present invention, comprises the following steps：
A) mix：Mixing is stirred by being added in agitating device for producing the basic components of brake block, in stirring
During addition auxiliary material and curing agent, auxiliary material is at least one of steel fibre and iron powder, and curing agent is epoxy novolac tree
Fat；
B) it is die-filling：Mixed liquor is poured into the mould with Electromagnetic Heating function；
C) once heat：Mixed liquor is heated to 55-65 DEG C using electromagnetic heating apparatus, continues 4-10 minutes；
D) reheating：Start after the completion of once heating and the content in mould is carried out with mould supporting pressurized equipment
Pressurization, while temperature is maintained into 90-100 DEG C, the heat-insulation pressure keeping time is 15-25 minutes；
E) cool down：Heat-insulation pressure keeping pulls out product after terminating from mould, by product cooling to normal temperature under normal temperature environment.
The basic components for being used to produce brake block in the step a) mixing are Frication powder, barium sulfate, calcium sulfate crystal whiskers, glass
Glass fiber, calcium hydroxide, calcium oxide, magnesia, liquid resin, the Electromagnetic Heating are provided with hermatic door, and hermatic door is interior after closing
Portion heating space is in air-tight state, and the novolac epoxy resin is bisphenol f type epoxy resin, the novolac epoxy resin and base
The mass ratio of plinth component is 1:9-3:10, the mass ratio of the auxiliary material and basic components is 2:7-3:8, the auxiliary material is steel
The mass ratio of the mixture of fiber and iron powder, steel fibre and iron powder is 1.5:1-1:1.
The course of work of the present invention：
In the course of the work, auxiliary material is added in formula a kind of low-temperature setting technique of drum-type brake pad of the present invention, matches somebody with somebody
Close Electromagnetic Heating so that auxiliary material can improve temperature lifting speed, so that one in heat production under electromagnetic action during Electromagnetic Heating
Determine to have saved the time in degree；Addition novolac epoxy resin can effectively reduce solidification temperature, and curing rate is fast, saves significantly
About the energy, solidifies the spent time while reducing, improves production efficiency.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after
Scheme belong to protection scope of the present invention.
Claims (7)
1. a kind of low-temperature setting technique of drum-type brake pad, it is characterised in that：Comprise the following steps：
A) mix：Mixing is stirred by being added in agitating device for producing the basic components of brake block, in whipping process
Middle addition auxiliary material and curing agent, auxiliary material is at least one of steel fibre and iron powder, and curing agent is novolac epoxy resin；
B) it is die-filling：Mixed liquor is poured into the mould with Electromagnetic Heating function；
C) once heat：Mixed liquor is heated to 55-65 DEG C using electromagnetic heating apparatus, continues 4-10 minutes；
D) reheating：Start after the completion of once heating and the content in mould is added with mould supporting pressurized equipment
Pressure, while temperature is maintained into 90-100 DEG C, the heat-insulation pressure keeping time is 15-25 minutes；
E) cool down：Heat-insulation pressure keeping pulls out product after terminating from mould, by product cooling to normal temperature under normal temperature environment.
2. a kind of low-temperature setting technique of drum-type brake pad as claimed in claim 1, it is characterised in that：Step a) the mixing
In be used for produce brake block basic components be Frication powder, barium sulfate, calcium sulfate crystal whiskers, glass fibre, calcium hydroxide, oxidation
Calcium, magnesia, liquid resin.
3. a kind of low-temperature setting technique of drum-type brake pad as claimed in claim 1, it is characterised in that：The Electromagnetic Heating is set
There are hermatic door, hermatic door to be in air-tight state in internal heating space after closing.
4. a kind of low-temperature setting technique of drum-type brake pad as claimed in claim 1, it is characterised in that：The epoxy novolac tree
Fat is bisphenol f type epoxy resin.
5. a kind of low-temperature setting technique of drum-type brake pad as claimed in claim 1, it is characterised in that：The epoxy novolac tree
Fat and the mass ratio of basic components are 1:9-3:10.
6. a kind of low-temperature setting technique of drum-type brake pad as claimed in claim 1, it is characterised in that：The auxiliary material and base
The mass ratio of plinth component is 2:7-3:8.
7. a kind of low-temperature setting technique of drum-type brake pad as claimed in claim 1, it is characterised in that：The auxiliary material is steel
The mass ratio of the mixture of fiber and iron powder, steel fibre and iron powder is 1.5:1-1:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710400773.2A CN107081868A (en) | 2017-05-31 | 2017-05-31 | A kind of low-temperature setting technique of drum-type brake pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710400773.2A CN107081868A (en) | 2017-05-31 | 2017-05-31 | A kind of low-temperature setting technique of drum-type brake pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107081868A true CN107081868A (en) | 2017-08-22 |
Family
ID=59607696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710400773.2A Pending CN107081868A (en) | 2017-05-31 | 2017-05-31 | A kind of low-temperature setting technique of drum-type brake pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107081868A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1176685A (en) * | 1995-02-03 | 1998-03-18 | 联合讯号公司 | Composition for use in friction materials and articles formed threrefrom |
| WO2009009348A1 (en) * | 2007-07-10 | 2009-01-15 | Federal-Mogul Corporation | Microwave-assisted press cure processing of friction pads |
-
2017
- 2017-05-31 CN CN201710400773.2A patent/CN107081868A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1176685A (en) * | 1995-02-03 | 1998-03-18 | 联合讯号公司 | Composition for use in friction materials and articles formed threrefrom |
| WO2009009348A1 (en) * | 2007-07-10 | 2009-01-15 | Federal-Mogul Corporation | Microwave-assisted press cure processing of friction pads |
Non-Patent Citations (1)
| Title |
|---|
| 张广成，史学涛: "《塑料成型加工技术》", 31 January 2016, 西北工业大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104226914A (en) | Foundry technology of flange | |
| CN104086161A (en) | Making method of silicon-based ceramic core with adjustable thermal expansion coefficient | |
| CN104467322B (en) | A kind of poured with epoxy resin technique of motor stator winding | |
| CN101826393A (en) | Vacuum pouring method for epoxy resin | |
| CN100569959C (en) | A kind of hot disintegration method for molten steel slag | |
| CN108299001A (en) | A kind of silicon-base ceramic core forming method | |
| CN108164257A (en) | A kind of hot investment casting core and its manufacturing method | |
| CN101928116A (en) | Formula for improving strength of artificial marble and preparation method thereof | |
| CN108145084A (en) | A kind of combined type plaster inner core investment shell casting technique | |
| CN101837617A (en) | Gel curing processing method of epoxy resin | |
| CN105563719A (en) | Epoxy resin vacuum pouring technology for protection gas inflation | |
| CN107081868A (en) | A kind of low-temperature setting technique of drum-type brake pad | |
| CN106810115A (en) | Fire resisting quartzite slate and its manufacture method | |
| CN104290226A (en) | Forming method for 35 KV and below potential transformer with low partial discharge level | |
| CN109776761A (en) | A kind of moulding concrete with can steam-cured polyurethane template preparation material and can steam-cured polyurethane template and preparation method thereof | |
| CN108115089B (en) | A kind of fusible pattern pinion stand shell preparation process based on compound wax-pattern | |
| CN103100665B (en) | Sodium silicate sand mould drying and hardening process | |
| CN107099738A (en) | A kind of pressure piece casting technique | |
| CN104959548A (en) | Casting method for pressure plate | |
| CN102728785A (en) | Chilling coating for lost foam casting engine block and its preparation method | |
| CN107755623A (en) | Automobile clutch pressure plate casting method | |
| CN104083288A (en) | Phosphate casting investment material | |
| CN107814562A (en) | A kind of production method of the composite modified aluminium-magnesia carbon brick of organosilicon and dolomite | |
| CN106738265A (en) | A kind of method that use tunnel type micro wave heater solidifies calcium silicate board | |
| CN101428341A (en) | High purity waterless boron oxide casting mold apparatus and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170822 |
|
| RJ01 | Rejection of invention patent application after publication |