CN1958648A - Method for producing brake sheets of heavy load truck - Google Patents
Method for producing brake sheets of heavy load truck Download PDFInfo
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- CN1958648A CN1958648A CN 200610070110 CN200610070110A CN1958648A CN 1958648 A CN1958648 A CN 1958648A CN 200610070110 CN200610070110 CN 200610070110 CN 200610070110 A CN200610070110 A CN 200610070110A CN 1958648 A CN1958648 A CN 1958648A
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- friction
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- load truck
- brake
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Abstract
This invention discloses the formula of a friction material for producing barke pads of heavy trucks. The formula is: binder 15-20 wt. %, aggregate 30-50 wt. %, friction enhancer 10-15 wt. %, friction reducer 5-10 wt.%, and filler 20-30 wt. %. The process for producing brake pads comprises: weighing the raw materials, mixing, hot-pressing, heat-treating, polishing the outer arcs, polishing the inner arcs, drilling, and finely polishing the outer arcs. The obtained block pads have such advantages as stable friction coefficient and restoring capacity, good heat resistance, no cracking, low speed sensitivity, good wear resistance and low braking noise. The service life is prolonged from 30000 km to above 70000 km.
Description
Technical field
The invention belongs to the brake material of auto industry field, specifically is heavy load truck breaking system initiative, safety member brake facing friction materials.
Prior art
Brake facing is made of backboard, bonding thermofin and friction layer, and wherein friction layer (also claiming friction materials) is made up of strongthener, tackiness agent and filler (frictional property regulator).At present, domestic application with semi-metal fiber base enhancing friction materials is the most general.Following table 1 has provided the typical compositing formula of semi-metallic brake pad friction materials.
Table 1 semi-metallic brake pad friction materials is formed
| Title | Component | Function |
| Tackiness agent | Resol, rubber powder | Bonding, glue connection |
| Framework material | Glass fibre, copper fiber, steel fiber, | Gain in strength |
| Increase grinding agent | Al 2O 3, SiO 2, MgO, Fe 3O 4, Cr 2O 3, Fe, Al | Increase frictional coefficient |
| Anti-friction composition | Graphite, MoS 2, mica | Lubricated, prevent that friction materials from adhering on the dual face. |
| Organic filler | Tyre talc | Reduce the low temperature abrasion |
| Non-organic filler | BaSO 4, CaCO 3, Ca (OH) 2, MgO | Reduce the high temperature abrasion |
Production technique mainly contains: starting material weighing and burden → batch mixing → cold-forming → hot pressing → upward anchor clamps → thermal treatment → inside and outside lonely mill → fluting → boring.
The braking ability of its product can satisfy working condition requirement substantially, but the heat fading phenomenon of brake facing is comparatively general, the phenomenon that also exist noise simultaneously, scratch mating plate, wear rate is high.
Summary of the invention
Purpose of the present invention is exactly the shortcoming at above-mentioned friction materials, propose a kind of utilize organic--the novel high-performance brake friction material of inorganic nano combined technology development, nano effect by control different shape multi-phase ingredients, the nano friction material is obtained than existing friction materials comprehensive performance, high-temperature behavior particularly can be taken into account the production method of a kind of brake sheets of heavy load truck of intensity and toughness, high temperature friction and wearing and tearing etc. simultaneously.
Technical scheme of the present invention comprises that the prescription of material is formed and generation technology two portions.
Prescription is formed (weight percent): 15-20% binding agent, 30-50% framework material, 10-15% increase the agent that rubs, 5-10% low friction compound, 20-30% packing material.Binding agent wherein comprises: modification COPNA aromatic hydrocarbon resin, butyronitrile modified resin, liquid resin, cashew nut oil modified resin, nano modification resin; Framework material comprises: mineral fibre class, glass fibre, aramid fiber, steel fiber, cellulosic fibre, carbon fiber etc.; Increasing the agent that rubs comprises: hardness materials bigger than normal such as chromite ore fine, Feldspar Powder, brown corundum; Low friction compound comprises: hardness such as graphite, coke, molybdenumdisulphide are less than normal, lubricate; Weighting agent comprises: BaSO
4, coarse whiting etc. plays stable frictional coefficient effect.
Main technique flow process: starting material weighing and burden---batch mixing---hot-forming---thermal treatment---mill outer arc---mill inner arc---boring---correct grinding outer arc.
Friction materials of the present invention be with by substance reaction control is made have cohesive strength height, heat decomposition temperature height, good toughness, cohesive strength height, the filling-modified COPNA aromatic hydrocarbon resin of high-performance nano that free phenol content is low is applied in the friction materials, and improve the conventional friction material over-all properties, the coldmoulding that improves simultaneously in the traditional technology is hot-forming, significantly reduces the wear rate of friction materials.
The brake facing of friction materials preparation of the present invention has stable frictional coefficient and restorability; Have good thermotolerance, crack performance does not take place; Speed sensitivity is little; Has good wear resistance; Characteristics such as brake noise is little.Brake(-holder) block work-ing life is brought up to more than 70,000 kilometers by original 30,000 kilometers.
Embodiment
The present invention is developing and is drawing German FRIMATEC company synchronously, on the basis of the advanced Formula Design thought in U.S. LINK laboratory, adopt the multiple material personal characteristics integrated technology in the nonmetallic composite, the modification of COPNA aromatic hydrocarbon resin bonding technology and fertile material, regulation technology is developed, and hot press forming technology of international one step of advanced semidrying of utilization, adopt the DCS control techniques to implement production process control and with KruassJF-132 automatically, the KruassJF160 friction material test machine is main quality examination analysis and Control system, the solution cargo truck overloads under the different working conditions, the heat fading defective of middle high temperature section, thus realize brake safe, reliably, sensitive, a series of technical barriers such as fray of noiselessness and mating plate.
In view of copna resin has low temperature moulding, thermotolerance, affinity and good tensile strength and sliding capability are arranged, frictional interface can produce high temperature when we braked at the heavy-duty car adjustment, pass through thermal test, thermal weight loss test and thermolysis are tested and free phenol content are analyzed, selected high-performance nonmetallic composite is as friction materials, simultaneously, for intensity and the anti-shear performance that improves brake(-holder) block, prevent the friction materials hot cracking, the copna resin and the high-quality carbon back fortifying fibre of fine affinity have been selected to have, and carry out compound with other fibers, guaranteeing that product has good friction and wear behavior and physical and mechanical properties, and has good surface appearance; For stability and the restorability that improves frictional coefficient, through constant speed test, bench testing, more than 80 kinds of starting material are compared test, therefrom selected the comparatively ideal frictional property regulator that is complementary with nonmetallic composite and caking agent.
Raw material is formed: 15% binding agent, 35% framework material, 15% increase the agent that rubs, 10% low friction compound, 25% packing material.
Binding agent select butyronitrile modified resin, liquid resin, cashew nut oil modified resin, nano modification resin for use one or more mix use with copna resin; Framework material is selected mineral fibre class, glass fibre, aramid fiber, steel fiber, cellulosic fibre, carbon fiber etc. for use; Increase the agent that rubs and select hardness such as chromite ore fine, Feldspar Powder, brown corundum material bigger than normal etc. for use; Low friction compound selects for use hardness such as graphite, coke, molybdenumdisulphide less than normal, lubricate; Weighting agent is selected BaSO for use
4, coarse whiting etc. plays stable frictional coefficient effect.
Technical process: starting material weigh batching → batch mixing → hot-forming → thermal treatment → mill outer arc → mill inner arc → boring → correct grinding outer arc → check → packing warehouse-in.
This project adopts advanced semidrying one-step moulding production technique and copna resin bonding technology, improves automobile brake, safety performance.
Technical indicator
| Interventions Requested | Technical requirements | Assay | ||
| Density g/cm 2 | ≤2.5 | 1.98 | ||
| Shock strength dJ/cm 2 | ≥3.0 | 5 | ||
| Ultimate compression strength Mpa | ≥40 | 79.1 | ||
| Thermotolerance (%) | Swell increment | ≤1.25 | 0.77 | |
| Increase | ≤0.40 | 0.22 | ||
| Acetone extractibility % | ≤1.3 | 1.22 | ||
| Frictional coefficient (μ) | Heat up in 250 ℃ | 0.45(±)0.08 | 0.49 | |
| Cooling | 0.47 | |||
| 300 ℃ of wear rates (v) 10 - | ≤0.92 | 0.37 | ||
| *Annotate: the technical requirements of the said products critical technical parameter tabular is QC/T239-1997 " lorry, a car brake performance requriements " | ||||
Claims (2)
1, a kind of production method of brake sheets of heavy load truck, proportioning and production technique two portions by material are formed, it is characterized in that constitutive material and weight percent are: 15-20% binding agent, 30-50% framework material, 10-15% increase the agent that rubs, 5-10% low friction compound, 20-30% packing material, the main technique flow process: the starting material weighing and burden, and------hot-forming---------mill inner arc---boring---finish grindes outer arc to the mill outer arc to batch mixing in thermal treatment.
2, the production method of a kind of brake sheets of heavy load truck according to claim 1 is characterized in that: described binding agent comprises: COPNA aromatic hydrocarbon resin, butyronitrile modified resin, cashew nut oil modified resin, resol; Framework material comprises: mineral fibre class, glass fibre, aramid fiber, steel fiber, cellulosic fibre, carbon fiber; Increasing the agent that rubs comprises: chromite ore fine, Feldspar Powder, brown corundum; Low friction compound comprises: graphite, coke, molybdenumdisulphide; Packing material comprises: BaSO
4, coarse whiting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610070110 CN1958648A (en) | 2006-11-08 | 2006-11-08 | Method for producing brake sheets of heavy load truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610070110 CN1958648A (en) | 2006-11-08 | 2006-11-08 | Method for producing brake sheets of heavy load truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1958648A true CN1958648A (en) | 2007-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610070110 Pending CN1958648A (en) | 2006-11-08 | 2006-11-08 | Method for producing brake sheets of heavy load truck |
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| CN (1) | CN1958648A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838437A (en) * | 2010-05-31 | 2010-09-22 | 山东金麒麟集团有限公司 | Modified phenolic resin, preparation process thereof and brake pad cementing agent prepared by using same |
| CN101205457B (en) * | 2007-11-27 | 2012-05-30 | 信义集团公司 | Frictional heat self-sintering antifriction material |
| CN102758870A (en) * | 2012-07-20 | 2012-10-31 | 十堰市九霄摩擦材料有限公司 | Car brake friction lining and preparation method thereof |
| CN103352943A (en) * | 2013-06-05 | 2013-10-16 | 安徽宝途汽车零部件有限公司 | Friction material and automobile friction plate |
| CN103602313A (en) * | 2013-11-19 | 2014-02-26 | 青岛广联达精密机械有限公司 | High-temperature resistant material of disc type brake pad |
| CN103603902A (en) * | 2013-11-19 | 2014-02-26 | 青岛广联达精密机械有限公司 | Wear brake pad for heavy trucks |
| CN104592934A (en) * | 2014-12-17 | 2015-05-06 | 青岛华瑞丰机械有限公司 | Organic composite brake friction material prepared from liquid resin |
| CN108626279A (en) * | 2018-05-02 | 2018-10-09 | 南通新源特种纤维有限公司 | A kind of preparation method of brake for cars friction facing |
| CN109372919A (en) * | 2018-12-03 | 2019-02-22 | 宁波凯硕汽车部件有限公司 | A kind of high performance brake piece and its production technology |
| CN114085431A (en) * | 2021-12-08 | 2022-02-25 | 青岛华瑞丰机械有限公司 | Brake friction plate and preparation process |
-
2006
- 2006-11-08 CN CN 200610070110 patent/CN1958648A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205457B (en) * | 2007-11-27 | 2012-05-30 | 信义集团公司 | Frictional heat self-sintering antifriction material |
| CN101838437A (en) * | 2010-05-31 | 2010-09-22 | 山东金麒麟集团有限公司 | Modified phenolic resin, preparation process thereof and brake pad cementing agent prepared by using same |
| CN101838437B (en) * | 2010-05-31 | 2012-01-18 | 山东金麒麟集团有限公司 | Modified phenolic resin, preparation process thereof and brake pad cementing agent prepared by using same |
| CN102758870A (en) * | 2012-07-20 | 2012-10-31 | 十堰市九霄摩擦材料有限公司 | Car brake friction lining and preparation method thereof |
| CN103352943A (en) * | 2013-06-05 | 2013-10-16 | 安徽宝途汽车零部件有限公司 | Friction material and automobile friction plate |
| CN103352943B (en) * | 2013-06-05 | 2015-12-23 | 安徽宝途汽车零部件有限公司 | A kind of friction material, automobile friction |
| CN103603902A (en) * | 2013-11-19 | 2014-02-26 | 青岛广联达精密机械有限公司 | Wear brake pad for heavy trucks |
| CN103602313A (en) * | 2013-11-19 | 2014-02-26 | 青岛广联达精密机械有限公司 | High-temperature resistant material of disc type brake pad |
| CN104592934A (en) * | 2014-12-17 | 2015-05-06 | 青岛华瑞丰机械有限公司 | Organic composite brake friction material prepared from liquid resin |
| CN108626279A (en) * | 2018-05-02 | 2018-10-09 | 南通新源特种纤维有限公司 | A kind of preparation method of brake for cars friction facing |
| CN109372919A (en) * | 2018-12-03 | 2019-02-22 | 宁波凯硕汽车部件有限公司 | A kind of high performance brake piece and its production technology |
| CN114085431A (en) * | 2021-12-08 | 2022-02-25 | 青岛华瑞丰机械有限公司 | Brake friction plate and preparation process |
| CN114085431B (en) * | 2021-12-08 | 2022-06-07 | 青岛华瑞丰机械有限公司 | Brake friction plate and preparation process |
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Open date: 20070509 |