CN102632290B - Steel back of the body bi-directional synchronization garland device and using method thereof - Google Patents
Steel back of the body bi-directional synchronization garland device and using method thereof Download PDFInfo
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- CN102632290B CN102632290B CN201110432900.XA CN201110432900A CN102632290B CN 102632290 B CN102632290 B CN 102632290B CN 201110432900 A CN201110432900 A CN 201110432900A CN 102632290 B CN102632290 B CN 102632290B
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- 241000357293 Leptobrama muelleri Species 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000007667 floating Methods 0.000 claims abstract description 16
- 238000007493 shaping process Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 239000002994 raw material Substances 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002783 friction material Substances 0.000 description 5
- 238000003754 machining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/068—Shaving, skiving or scarifying for forming lifted portions, e.g. slices or barbs, on the surface of the material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The present invention relates to a kind of steel back of the body bi-directional synchronization garland device and using method thereof, including upper bolster, cope match-plate pattern, die shoe, lower bolster, it also includes a shaping upper and workpiece location lower mold, and shaping upper is arranged on cope match-plate pattern, and shaping upper includes blade slides plate, left blade, right blade, left inside slide block, right inner slide, left outside slide block and right outer slide；Workpiece location lower mold is arranged on lower bolster, and workpiece location lower mold includes die, product floating block and floating spring；Lower bolster bottom is provided with push rod, and die shoe is fixed with corresponding left outside slide block, the left support block of right outer slide, right support block, and left support block, right support block are longitudinally installed on lower bolster.The present invention uses bi-directional synchronization to draw tooth method, and product gear has high density, intensity is high, arrangement is the most neat, the advantage that brake block product shear strength is high, and, production efficiency is high, and whole production process is more stable, tooth root is firm, difficult drop-off, is suitable to produce in enormous quantities.
Description
Technical field
The present invention relates to technical field of automobile parts, the steel back of the body bi-directional synchronization garland device of a kind of automobile brake sheet and using method thereof.
Background technology
Medium and small automobile brake sheet generally comprises the steel back of the body, brake pad, and wherein brake pad is bonded by friction materials such as reinforcing material, binding agent and fillers；Steel is shouldered carrying, is supported the effect of brake pad, is made up of steel plate punched.During brake, the steel back of the body is promoted by braking clamp, and its brake pad contacts friction with brake disc or drum, is reached the purpose of vehicle deceleration brake by friction.Owing to, in the brake system of automobile, brake block is the breaking piece of most critical, the quality of all braking effects is all that brake block plays a decisive role.Therefore, the steel back of the body is key factor therein with the glued firmness of friction material and the intensity of the steel back of the body.
The steel back of the body in the market is broadly divided into three kinds:
Playing the thorn steel back of the body, the method uses a kind of dedicated numerical control equipment, by working out different programs, carried out thorn at steel back surface, this kind of steel back of the body draw the density of tooth the lowest, and draw the firmness of tooth the highest, easy to fall off, the production efficiency of the steel back of the body is relatively low simultaneously, should not carry out large-scale mass production.
Counterbore steel is carried on the back, and the method is a number of counterbore of the surface punching press (blind hole) at the steel back of the body, and steel is carried on the back when friction material bonds, and friction material can enter counterbore (blind hole), increases the shear strength of brake block with this.But counterbore (blind hole) can affect outward appearance and the flatness of product in the course of processing.
Net lock steel substrate, the method is that steel mesh is directly welded at steel back, so can increase the shear strength of the steel back of the body and friction material to a certain extent.But relative to playing the thorn steel back of the body, its shear strength is relatively low, can only be suitable within the specific limits.
Applicant have developed a kind of automatic drawing device of steel backing (Chinese invention patent application CN101979200A), and it can be formed at steel back and two-way draw tooth, have processing quickly, stable, tooth root firmly, advantage that product shear strength is high.But, the two-way processing drawing tooth on same steel back of the body raw material is needed to carry out at twice by above-mentioned automatic drawing device of steel backing, and that the most first processes a direction draws tooth, and that reprocesses another direction draws tooth, and therefore its working (machining) efficiency still has much room for improvement；And existing two steps draw tooth processing method the most easily to make to draw tooth to produce difference in height, affect product appearance and serviceability.
Summary of the invention
It is an object of the invention to provide one can realize two-way drawing tooth one-shot forming, working (machining) efficiency is high, and tooth depth is uniform, and tooth root is firm, difficult drop-off, is suitable to produce in enormous quantities, steel back of the body bi-directional synchronization garland device applied widely and using method thereof.
The present invention solves it and technical problem is that and realize by the following technical solutions:
A kind of steel back of the body bi-directional synchronization garland device, including upper bolster, is connected with hydraulic press；Cope match-plate pattern, is installed in parallel in upper bolster bottom；Die shoe, is connected with hydraulic press；Lower bolster, it is installed in parallel in die shoe top, it is characterized in that: also include a shaping upper and workpiece location lower mold, shaping upper is arranged on cope match-plate pattern, shaping upper includes blade slides plate, left blade, right blade, left inside slide block, right inner slide, left outside slide block and right outer slide, left inside slide block, right inner slide symmetry level is slidably mounted on blade slides plate bottom, left blade, right blade level respectively is packed in left inside slide block, right inner slide lower surface, left inside slide block, it is horizontally installed with spring between right inner slide, left outside slide block, right outer slide is separately mounted to left inside slide block, outside right inner slide；Workpiece location lower mold is arranged on lower bolster, and workpiece location lower mold includes die, product floating block and floating spring, forms workpiece locating mould cavity between die and product floating block；Lower bolster bottom is provided with push rod, and die shoe is fixed with corresponding left outside slide block, the left support block of right outer slide, right support block, and left support block, right support block are longitudinally installed on lower bolster.
A side at die shoe is vertically fixed with limited post.
Described left outside slide block, right outer slide and left inside slide block, right inner slide are wedge, and its contact surface is that lower end slopes inwardly.
The lower surface of described lower bolster is fixedly mounted with bottom plate, is fixedly mounted with described push rod bottom this bottom plate.
Be equipped with regular distribution on the surface of left blade, right blade draws tooth, and its density is 6/square millimeter.
Described left blade, right blade slides are plug-in, and it draws the position of tooth to be crisscross arranged.
The using method of steel back of the body bi-directional synchronization garland device, comprises the steps:
The first step, the workpiece locating mould cavity formed between described die and product floating block put into by described raw material；
Second step, under the drive of described hydraulic press, described upper bolster moves towards die shoe direction；
3rd step, left blade, right blade and raw produce laminating, counteracting force is transferred to lower bolster under hydraulic press nitrogen spring effect by push rod, draws tooth to insert raw material for blade and provides vertical direction active force；Simultaneously, the left support block fixed on die shoe, right support block are to left outside slide block, right outer slide effect, promote and left outside slide block, right outer slide are moved upward, thus promote left inside slide block, right inner slide inward, thus promote left blade, the inside horizontal movement of right blade, tooth is formed on raw material surface；
4th step, left blade, right blade deepen continuously raw material top layer in motor process, until cope match-plate pattern, lower bolster are of completely closed, the most left blade, right blade enter material depth and reach setting value；
5th step, hydraulic press drives upper bolster to continue to move down, the most left blade, right blade stop vertical direction effect, left support block, right support block continue to press on left outside slide block, right outer slide moves up, left blade, right blade continue to move in the horizontal direction, the tooth on raw material surface left blade, right blade effect under be gradually increased, until limit state, formed and two-way draw tooth；
6th step, hydraulic press drives upper bolster to rise, and left blade, right blade return in situ under the action of the spring, and product draws an end cycle of tooth；
7th step, takes out and draws finished product after tooth, continues above-mentioned steps one to seven.
Advantages of the present invention and having the beneficial effect that
1. this steel back of the body bi-directional synchronization garland device, uses the left and right blade synchronizing to move towards to process while realizing cutter tooth two direction, once completes the garland of product, and speed is faster, in hgher efficiency.
2. this steel the back of the body bi-directional synchronization garland device, the height of product gear is easily controlled, and the difference in height of the tooth of both direction is less, and outward appearance is more attractive, tooth row cloth evenly, more neat；Draw tooth due to left and right, the intensity of tooth is higher, more stable, difficult drop-off simultaneously, and the shear strength of processing rear braking sheet finished product is higher.
3. bi-directional synchronization garland device carried on the back by this steel, and the tooth of both direction is processed simultaneously, and side force cancels each other, and draws tooth to reduce the active force that product is lateral, and product size is more stable.
4. this steel back of the body bi-directional synchronization garland device, mould structure is simple, and the stability of mould is high, and maintenance of being more convenient for.
5. bi-directional synchronization garland device carried on the back by this steel, and the part of the lower die of mould is fixed, and product is positioned in lower mold, it is simple to product self-feeding.
6. the present invention uses bi-directional synchronization to draw tooth method, and product gear has high density, intensity is high, arrangement is the most neat, the advantage that brake block product shear strength is high, and, production efficiency is high, and whole production process is more stable, tooth root is firm, difficult drop-off, is suitable to produce in enormous quantities.
Accompanying drawing explanation
Fig. 1 is that bi-directional synchronization garland device original state schematic diagram carried on the back by steel of the present invention.
Fig. 2 is that bi-directional synchronization garland device working state schematic representation carried on the back by steel of the present invention.
Description of reference numerals in steel of the present invention back of the body bi-directional synchronization garland device and using method accompanying drawing thereof.
1-die shoe 2-left support block 3-lower bolster 4-adjustment block
5-cope match-plate pattern 6-block 7-upper bolster 8-backing plate
9-left outside slide block 10-left inside slide block 11-left blade 12-spring
The 13-blade slides plate 14-blade backing plate 15-right inner slide right outer slide of 16-
17-limited post 18-right blade 19-right support block 20-bottom plate
21-die 22-product floating block 23-push rod 24-floating spring
25-garland product
Detailed description of the invention
Below in conjunction with the accompanying drawings automatic drawing device of steel backing of the present invention and using method thereof are described in further detail.
Shown in as shown in Figure 1, Figure 2.Steel back of the body bi-directional synchronization garland device, including upper bolster 7, is connected with hydraulic press；Cope match-plate pattern 5, parallel is packed in upper bolster 7 bottom；Die shoe 1, is connected with hydraulic press；Lower bolster 3, it is installed in parallel in die shoe 1 top, it also includes a shaping upper and workpiece location lower mold, shaping upper is arranged on cope match-plate pattern, shaping upper includes blade slides plate 13, left blade 11, right blade 18, left inside slide block 10, right inner slide 15, left outside slide block 9 and right outer slide 16, the symmetrical level of left inside slide block 10, right inner slide 15 is slidably mounted on blade slides plate 13 bottom, is provided with blade backing plate 14 between blade slides plate 13 and upper bolster 7.Left blade, right blade level respectively are packed in left inside slide block 10, right inner slide 15 lower surface, and be equipped with regular distribution on left blade 11, the surface of right blade 18 draws tooth, and its density is 6/square millimeter.Described left blade 11, right blade 18 slide plug-in, and it draws the position of tooth to be crisscross arranged.It is horizontally installed with spring 12 between left inside slide block 10, right inner slide 15.Left outside slide block 9, right outer slide 16 are separately mounted to outside left inside slide block 10, right inner slide 15, be mounted on block 6, be mounted on backing plate 8 between this block 6 top and upper bolster 7 outside left outside slide block 9, right outer slide 16 and between cope match-plate pattern 5.Left outside slide block 9, right outer slide 16 are wedge with left inside slide block 10, right inner slide 15, and its contact surface is that lower end slopes inwardly.Left outside slider bottom is provided with adjustment block 4.
Workpiece location lower mold is arranged on lower bolster 3, and workpiece location lower mold includes die 21, product floating block 22 and floating spring 24, forms workpiece locating mould cavity between die 21 and product floating block 22.
Lower bolster 3 bottom is provided with push rod 23.The lower surface of described lower bolster 3 is fixedly mounted with bottom plate 20, is fixedly mounted with described push rod 23 bottom this bottom plate 20.This push rod 23 bottom is provided with the nitrogen spring of hydraulic press.
Being fixed with corresponding left outside slide block 9, the left support block 2 of right outer slide 16, right support block 19 on die shoe 1, left support block 2, right support block 19 are longitudinally installed on lower bolster 3.A side at die shoe 1 is vertically fixed with limited post 17.
The using method of steel back of the body bi-directional synchronization garland device, comprises the steps:
The first step, the workpiece locating mould cavity formed between described die 21 and product floating block 22 put into by the raw material of described garland product 25.
Second step, under the drive of described hydraulic press, described upper bolster 7 moves towards die shoe 1 direction.
3rd step, left blade 11, right blade 18 and raw material laminating, counteracting force is transferred to lower bolster 3 under hydraulic press nitrogen spring effect by push rod 23, draws tooth to insert raw material for blade and provides vertical direction active force；Simultaneously, left outside slide block 9, right outer slide 16 are acted on by left support block 2, right support block 19 respectively that fixed on die shoe 1, promote and left outside slide block 9, right outer slide 16 are moved upward, thus promote left inside slide block 10, right inner slide 15 inward, thus promote left blade 11, the inside horizontal movement of right blade 18, tooth is formed on raw material surface.
4th step, left blade 11, right blade 18 deepen continuously raw material top layer in motor process, until cope match-plate pattern 5, lower bolster 3 are of completely closed, the most left and right blade enters material depth and reaches setting value.
5th step, hydraulic press drives upper bolster 7 to continue to move down, the most left blade 11, right blade 18 stop vertical direction effect, left support block 2, right support block 19 continue to press on left outside slide block 9, right outer slide 16 continues to move up, left blade 11, right blade 18 continue to move in the horizontal direction, the tooth on raw material surface is gradually increased under the effect of left and right blade, until limited post 17 contacts (in Fig. 2 with upper bolster 7, H=0), upper bolster stops descending, tooth depth reaches capacity state, is formed and two-way draws tooth.
6th step, hydraulic press drives upper bolster 7 to rise, and left blade 11, right blade 18 return in situ under the effect of spring 12, and product draws an end cycle of tooth.
7th step, takes out garland product, continues above-mentioned steps one to seven.
Claims (7)
1. a steel back of the body bi-directional synchronization garland device, including upper bolster, is connected with hydraulic press；Cope match-plate pattern, is installed in parallel in upper bolster bottom；Die shoe, is connected with hydraulic press；Lower bolster, it is installed in parallel in die shoe top, it is characterized in that: also include a shaping upper and workpiece location lower mold, shaping upper is arranged on cope match-plate pattern, shaping upper includes blade slides plate, left blade, right blade, left inside slide block, right inner slide, left outside slide block and right outer slide, left inside slide block, right inner slide symmetry level is slidably mounted on blade slides plate bottom, left blade, right blade level respectively is packed in left inside slide block, right inner slide lower surface, left inside slide block, it is horizontally installed with spring between right inner slide, left outside slide block, right outer slide is separately mounted to left inside slide block, outside right inner slide；Workpiece location lower mold is arranged on lower bolster, and workpiece location lower mold includes die, product floating block and floating spring, forms workpiece locating mould cavity between die and product floating block；Lower bolster bottom is provided with push rod, and die shoe is fixed with corresponding left outside slide block, the left support block of right outer slide, right support block, and left support block, right support block are longitudinally installed on lower bolster.
Steel the most according to claim 1 back of the body bi-directional synchronization garland device, it is characterised in that: the side at die shoe is vertically fixed with limited post.
Steel the most according to claim 1 back of the body bi-directional synchronization garland device, it is characterised in that: described left outside slide block, right outer slide and left inside slide block, right inner slide are wedge, and its contact surface is that lower end slopes inwardly.
Steel the most according to claim 1 back of the body bi-directional synchronization garland device, it is characterised in that: the lower surface of described lower bolster is fixedly mounted with bottom plate, is fixedly mounted with described push rod bottom this bottom plate.
Steel the most according to claim 1 back of the body bi-directional synchronization garland device, it is characterised in that: be equipped with regular distribution on the surface of left blade, right blade draws tooth, and its density is 6/square millimeter.
Steel the most according to claim 1 back of the body bi-directional synchronization garland device, it is characterised in that: described left blade, right blade slides are plug-in, and it draws the position of tooth to be crisscross arranged.
The using method of steel the most according to claim 1 back of the body bi-directional synchronization garland device, it is characterised in that: the using method of described steel back of the body bi-directional synchronization garland device, comprise the steps:
The first step, the workpiece locating mould cavity formed between described die and product floating block put into by raw material；
Second step, under the drive of described hydraulic press, described upper bolster moves towards die shoe direction；
3rd step, left blade, right blade and raw produce laminating, counteracting force is transferred to lower bolster under hydraulic press nitrogen spring effect by push rod, draws tooth to insert raw material for blade and provides vertical direction active force；Simultaneously, the left support block fixed on die shoe, right support block are to left outside slide block, right outer slide effect, promote and left outside slide block, right outer slide are moved upward, thus promote left inside slide block, right inner slide inward, thus promote left blade, the inside horizontal movement of right blade, tooth is formed on raw material surface；
4th step, left blade, right blade deepen continuously raw material top layer in motor process, until cope match-plate pattern, lower bolster are of completely closed, the most left blade, right blade enter material depth and reach setting value；
5th step, hydraulic press drives upper bolster to continue to move down, the most left blade, right blade stop vertical direction effect, left support block, right support block continue to press on left outside slide block, right outer slide moves up, left blade, right blade continue to move in the horizontal direction, the tooth on raw material surface left blade, right blade effect under be gradually increased, until limit state, formed and two-way draw tooth；
6th step, hydraulic press drives upper bolster to rise, and left blade, right blade return in situ under the action of the spring, and product draws an end cycle of tooth；
7th step, takes out and draws finished product after tooth, continues above-mentioned steps one to seven.
Priority Applications (14)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110432900.XA CN102632290B (en) | 2011-12-21 | 2011-12-21 | Steel back of the body bi-directional synchronization garland device and using method thereof |
| JP2014509587A JP5961253B2 (en) | 2011-12-21 | 2012-05-17 | Steel back bidirectional synchronous scratch pattern forming device |
| SI201231571T SI2796235T1 (en) | 2011-12-21 | 2012-05-17 | Steel-backed bidirectional synchronous spline broaching device and using method thereof |
| TR2019/03853T TR201903853T4 (en) | 2011-12-21 | 2012-05-17 | Steel supported bidirectional synchronous thread broaching device and its usage method. |
| MX2013002846A MX351616B (en) | 2011-12-21 | 2012-05-17 | Steel-backed bidirectional synchronous spline broaching device and using method thereof. |
| ES12852433T ES2716534T3 (en) | 2011-12-21 | 2012-05-17 | Bidirectional synchronous splined shaft milling device with steel backing and its procedure of use |
| EP12852433.7A EP2796235B1 (en) | 2011-12-21 | 2012-05-17 | Steel-backed bidirectional synchronous spline broaching device and using method thereof |
| DK12852433.7T DK2796235T3 (en) | 2011-12-21 | 2012-05-17 | STEEL REINFORCED TWO-WAY SYNCHRONOUS NOT PREFERENCE EQUIPMENT AND PROCEDURE TO USE THEREOF |
| PCT/CN2012/000677 WO2013091274A1 (en) | 2011-12-21 | 2012-05-17 | Steel-backed bidirectional synchronous spline broaching device and using method thereof |
| KR1020167022133A KR101698305B1 (en) | 2011-12-21 | 2012-05-17 | Steel back two-way synchronous drawloom and use method thereof |
| US13/814,663 US9506513B2 (en) | 2011-12-21 | 2012-05-17 | Steel back two-way synchronous broaching device and use method thereof |
| BR112013007468-0A BR112013007468B1 (en) | 2011-09-21 | 2012-05-17 | synchronous loom with steel back and method of using the synchronous loom with steel back |
| KR1020137014553A KR20140037795A (en) | 2011-12-21 | 2012-05-17 | Steel back two-way synchronous drawloom and use method thereof |
| CA2811196A CA2811196C (en) | 2011-12-21 | 2012-05-17 | Steel back two-way synchronous drawloom and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110432900.XA CN102632290B (en) | 2011-12-21 | 2011-12-21 | Steel back of the body bi-directional synchronization garland device and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102632290A CN102632290A (en) | 2012-08-15 |
| CN102632290B true CN102632290B (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110432900.XA Active CN102632290B (en) | 2011-09-21 | 2011-12-21 | Steel back of the body bi-directional synchronization garland device and using method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181118B (en) * | 2019-05-31 | 2020-05-01 | 曲阜天博汽车制动器有限公司 | Steel backing barb device |
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| US6276045B1 (en) * | 1998-10-28 | 2001-08-21 | Abb Lummus Global, Inc. | Method and apparatus for making structured packing element |
| CN201415233Y (en) * | 2009-06-23 | 2010-03-03 | 扬州锻压机床集团有限公司 | Die carrier for processing brake block steel back on fine blanking press |
| CN201586695U (en) * | 2009-11-24 | 2010-09-22 | 杭州吉达汽车配件有限公司 | Steel backing chamfering equipment |
| CN101979200A (en) * | 2010-08-30 | 2011-02-23 | 优蒂利(广州)汽车配件有限公司 | Automatic steel backing plate broaching device and using method thereof |
| CN202388049U (en) * | 2011-12-21 | 2012-08-22 | 优蒂利(广州)汽车配件有限公司 | Steel backing two-way synchronous flower broaching device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2262214A1 (en) * | 1999-02-18 | 2000-08-18 | Ray Arbesman | Disc brake backing plate and method and apparatus of manufacturing same |
| DE102005016466B3 (en) * | 2005-04-11 | 2006-06-14 | Aml Lanxide Europe Gmbh | Projection/teeth/boring/crimping construction device, has tool units which are driven by pressed part in brake lining carrier plate, where tool structures of units are arranged fixedly relative to one another |
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- 2011-12-21 CN CN201110432900.XA patent/CN102632290B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6276045B1 (en) * | 1998-10-28 | 2001-08-21 | Abb Lummus Global, Inc. | Method and apparatus for making structured packing element |
| CN201415233Y (en) * | 2009-06-23 | 2010-03-03 | 扬州锻压机床集团有限公司 | Die carrier for processing brake block steel back on fine blanking press |
| CN201586695U (en) * | 2009-11-24 | 2010-09-22 | 杭州吉达汽车配件有限公司 | Steel backing chamfering equipment |
| CN101979200A (en) * | 2010-08-30 | 2011-02-23 | 优蒂利(广州)汽车配件有限公司 | Automatic steel backing plate broaching device and using method thereof |
| CN202388049U (en) * | 2011-12-21 | 2012-08-22 | 优蒂利(广州)汽车配件有限公司 | Steel backing two-way synchronous flower broaching device |
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| CN102632290A (en) | 2012-08-15 |
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Addressee: Song Zhenling Document name: Notice of Qualified Procedures |
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