CN105798565A - Shear blade of jaw crusher and manufacturing method thereof - Google Patents
Shear blade of jaw crusher and manufacturing method thereof Download PDFInfo
- Publication number
- CN105798565A CN105798565A CN201610374574.4A CN201610374574A CN105798565A CN 105798565 A CN105798565 A CN 105798565A CN 201610374574 A CN201610374574 A CN 201610374574A CN 105798565 A CN105798565 A CN 105798565A
- Authority
- CN
- China
- Prior art keywords
- upper slitter
- lower cutter
- cutting edge
- jaw crusher
- cutter
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a shear blade of a jaw crusher and a manufacturing method thereof, and belongs to the technical field of mechanical blades. In the shear blade of the jaw crusher, an upper cutter edge surface is arranged on the front end surface of an upper cutter body; a lower cutter edge surface is arranged on the front end surface of a lower cutter body; an upper cutter butt joint platform is machined on an upper cutter back surface of the shear blade; a positioning groove is formed in the upper cutter butt joint platform; a lower cuter butt joint platform corresponding to the upper cutter butt joint platform is arranged on a lower cutter back surface; a positioning boss is arranged on the lower cutter butt joint platform; and precise butt joint positioning of the upper cutter back surface and the lower cutter back surface is realized through matching between the positioning groove and the positioning boss. The manufacturing method of the shear blade comprises the steps of: preparation of raw materials; annealing of a forging blank; rough machining of the forging blank; heat treatment and finishing. The shear blade can guarantee stable clamping, and is high in wear resistance and impact resistance, excellent in blade shearing effect, high in efficiency and long in service life.
Description
Technical field
The invention belongs to mechanical bit and manufacture method technical field thereof, more particularly, it relates to a kind of jaw crusher cutting edge blade and manufacture method thereof.
Background technology
Scrap steel crusher is a kind of crusher for producing steel scrap broken material, and what be mainly used in the steel beam column such as car, household electrical appliance and steel scrap scraps break process.Wherein, jaw crusher is a kind of common processing steel scrap equipment, realizes the break process of the materials such as steel scrap mainly by two blades up and down cooperated, and it adopts hydraulic-driven, easy to operate, it is easy to maintenance, it is adaptable to cut off middle-size and small-size strip steel scrap.
Jaw crusher cutting edge blade is the critical piece on jaw crusher, and the quality of its structure and performance directly affects the crushing effect of steel scrap.Location is implemented by installing hole locking entirely in the location of existing jaw crusher cutting edge blade, may result in shattering process after lower knife body overlap, upper and lower edge can not be completely superposed, and in use angle of throat mouth dislocation angle is increasing up and down, thus weakening the active force to steel scrap, not only making the serious wear of blade, being greatly shortened the service life of blade, and causing that steel scrap shear surface cannot remain a plane, broken waste steel quality is difficult to reach the quality level of requirement.
Additionally, due to China's steel scrap is various in style, complicated, the applying working condition of disintegrating machine is also had nothing in common with each other, and therefore just the hardness of jaw crusher cutting edge blade, wearability and impact resistance all performances is all had high requirement.But when using China's existing jaw crusher that steel scrap is carried out break process, the serviceability of disintegrating machine cutting edge blade can not meet the instructions for use that various steel scraps are crushed, blade shear efficiency is low, and blade easily weares and teares, ruptures and metaboly, light then affect the cutting effect of blade, the steel scrap that cannot ensure to be broken is cut off, heavy then cause directly scrapping of cutting edge blade, brings bigger economic loss to manufacturer.And when the hardness of disintegrating machine cutting edge blade does not reach instructions for use, the easy mutual dislocation of bottom knife under impact force action, thus weakening the active force to steel scrap further, reduce the crushing effect to steel scrap.
Therefore, how improving the serviceability of jaw crusher cutting edge blade so that it is disclosure satisfy that the broken requirement to different steel scraps, and prevent the dislocation of cutting edge blade in use procedure, the service life extending cutting edge blade is the problem needing solution during steel scrap crushes badly.The manufacturer of jaw crusher cutting edge blade is also perplexed by the problems referred to above always, but but cannot find a desirable solution all the time.
Summary of the invention
1. invention to solve the technical problem that
It is an object of the invention to overcome China's existing jaw crusher cutting edge blade clamping unstable, it is easily generated dislocation, serious and unequal and blade the shear efficiency of blade abrasion is low, shearing quality is poor, it is difficult to meet the deficiency that the break process to various steel scraps requires, it is provided that a kind of jaw crusher cutting edge blade and manufacture method thereof.Adopting technical scheme, it is possible to make jaw crusher cutting edge blade clamping stable, it is ensured that the blade docking of upper bottom knife is neat, and significantly improve wearability and the impact resistance of blade, blade shear effect is good, efficiency is high, long service life.
2. technical scheme
For reaching above-mentioned purpose, technical scheme provided by the invention is:
A kind of jaw crusher cutting edge blade of the present invention, including upper slitter and lower cutter, described upper slitter includes upper slitter cutter hub, described lower cutter includes lower cutter cutter hub, and the front end face of upper slitter cutter hub is provided with upper slitter blade face, the front end face of lower cutter cutter hub is provided with lower cutter blade face, the upper slitter back side processing of described cutting edge blade has upper slitter docking platform, on upper slitter docking platform, processing has detent, the processing of lower knife back face has the lower cutter docking platform corresponding with upper slitter docking platform, on lower cutter docking platform, processing has positioning boss, the accurate butt junction location realizing the upper slitter back side with lower knife back face is coordinated by detent and positioning boss.
Further, described upper slitter and lower cutter all adopt rough forging to prepare, and the components based on weight percentage of this rough forging is: C:0.55～0.65%；Si:0.50～0.80%；Cr:1.00～1.30%；W:2.20～2.70%；Mn:0.40%；Surplus is Fe.
Further, on described upper slitter cutter hub, processing has upper slitter installing hole, and on described lower cutter cutter hub, processing has the lower cutter installing hole corresponding with upper slitter installing hole, by the locking of upper slitter installing hole and lower cutter installing hole, upper slitter and lower cutter is carried out installation fixing.
Further, described upper slitter back side processing has upper slitter installation base, described lower knife back face processing has lower cutter installation base, and described upper slitter installing hole runs through upper slitter installation base and upper slitter cutter hub, described lower cutter installing hole runs through lower cutter installation base and lower cutter cutter hub, and the bottom surrounding of upper slitter installation base and lower cutter installation base is equipped with R type reinforcement.
The manufacture method of a kind of jaw crusher cutting edge blade, the steps include:
Step one, raw material prepare: described jaw crusher cutting edge blade adopts rough forging to make, and the components based on weight percentage of this rough forging is: C:0.55～0.65%；Si:0.50～0.80%；Cr:1.00～1.30%；W:2.20～2.70%；Mn:0.40%；Surplus is Fe；
Step 2, rough forging annealing: the rough forging in step one is carried out isothermal annealing process；
Step 3, rough forging roughing: through step 2 make annealing treatment after, rough forging is carried out roughing, makes the workpiece leaving allowance for finish；
Step 4, heat treatment: annealing-quenching-temper will be sequentially carried out through the rough machined jaw crusher cutting edge blade of step 3；
Step 5, it is sequentially carried out ground finish, linear cutter, polish, line excision forming and reconditioning polishing to through the heat treated jaw crusher cutting edge blade of step 4.
Further, the annealing temperature that rough forging carries out in step 2 isothermal annealing process is 750～760 DEG C, temperature retention time 8～10 hours, then with the cooling rate of 20 DEG C/h, and slow cooling extremely≤650 DEG C, air cooling of finally coming out of the stove.
Further, what make annealing treatment in step 4 concretely comprises the following steps: will be incubated 2～3 hours through the rough machined jaw crusher cutting edge blade heating of step 3 to 730～750 DEG C, then cool to 500 DEG C with the furnace, air cooling of finally coming out of the stove.
Further, the concretely comprising the following steps of Quenching Treatment in step 4: carry out secondary preheating before the quenching of jaw crusher cutting edge blade: first time is warming up to 500～550 DEG C, it is continuously heating to 750 DEG C after being incubated 10 minutes and carries out second time preheating, it is incubated 10 minutes again, finally it is warming up to 950 DEG C, it is incubated 15 minutes, and the oil quenching that carries out coming out of the stove.
Further, in step 4, the hardening media of oil quenching selects 32# machine oil.
Further, the concretely comprising the following steps of temper in step 4: the jaw crusher cutting edge blade of quenched process is placed at 180～200 DEG C of temperature and carries out first time tempering, tempering insulation time is 2 hours, then carrying out second time temper at 220 DEG C of temperature, tempering insulation time is 2.5 hours；Finally carrying out third time temper at 250 DEG C of temperature, tempering insulation time is 2 hours.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with prior art, there is following remarkable result:
(1) a kind of jaw crusher cutting edge blade of the present invention, the upper slitter back side processing of its cutting edge blade has upper slitter docking platform, on upper slitter docking platform, processing has detent, the processing of lower knife back face has the lower cutter docking platform corresponding with upper slitter docking platform, on lower cutter docking platform, processing has positioning boss, by coordinating of detent and positioning boss, it is capable of the accurate butt junction location at the upper slitter back side and lower knife back face on the one hand, after making the docking of upper slitter and lower cutter overlapping more tight, breaking scrap is formed and makes a concerted effort, and then alleviate the abrasion of blade, improve the service life of blade, broken product is also comparatively regular, improve shearing quality；Can improving the fastness of upper slitter and lower cutter location on the other hand, it is prevented that in use procedure, upper slitter and lower cutter misplace, thus affecting shear effect, cause that blade easily weares and teares, service life shortens.
(2) a kind of jaw crusher cutting edge blade of the present invention, described upper slitter and lower cutter all adopt rough forging to prepare, and the components based on weight percentage of this rough forging is: C:0.55～0.65%；Si:0.50～0.80%；Cr:1.00～1.30%；W:2.20～2.70%；Mn:0.40%；Surplus is Fe, and the present invention is by being optimized design to the component of blade and proportioning, thus improve the combination properties such as the hardness of blade, wearability and impact resistance from raw material so that it is all can meet instructions for use.
(3) a kind of jaw crusher cutting edge blade of the present invention, the bottom surrounding of its upper slitter installation base and lower cutter installation base is equipped with R type reinforcement, thus enhancing upper slitter installation base and lower cutter installation base bearing load ability, desirably prevent blade mounting holes to ftracture in processing or use procedure, well eliminate upper and lower cutter and dock the phenomenon misfitted, the blade that processing obtains fullys meet drawing requirement, and blade shear effect is good, efficiency is high.
(4) manufacture method of a kind of jaw crusher cutting edge blade of the present invention, by the component of blade and proportioning are optimized design, and according to experimental study and long-term production experience, the working process parameter such as heat treatment temperature and time of disintegrating machine cutting edge blade is optimized regulation and control, thus significantly improving the serviceability of cutting edge blade, the wearability of gained blade is good, impact resistance is strong, when solving employing existing manufacture method, blade abrasion is serious, be not durable, and breaking scrap is of poor quality and the problem of cutting edge easy fracture.
Accompanying drawing explanation
Fig. 1 is the package assembly schematic diagram of a kind of jaw crusher cutting edge blade of the present invention；
Fig. 2 is the structural representation of the upper slitter of the present invention；
Fig. 3 is the structural representation of the lower cutter of the present invention.
Label declaration in accompanying drawing:
1, upper slitter；101, upper slitter docking platform；102, upper slitter installation base；103, detent；104, upper slitter installing hole；105, upper slitter blade face；106, upper slitter blade；107, the upper slitter back side；2, lower cutter；201, lower cutter docking platform；202, lower cutter installation base；203, positioning boss；204, lower cutter installing hole；205, lower cutter blade face；206, lower cutter blade；207, lower knife back face.
Detailed description of the invention
For further appreciating that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Heretofore described upper and lower, forward and backward, front, the back side, side etc. represent that the word in orientation is for being easy to express, actual orientation is not limited to that, now each face of cutting edge blade of the present invention is explained: upper (lower) knife back face refers to that processing has the plane of docking platform and installation base, upper (lower) cutter front refers to the plane relative with the back side, front end face is blade face, and rear end face is the side relative with blade face.
Embodiment 1
As shown in Figure 1-Figure 3, a kind of jaw crusher cutting edge blade of the present embodiment, including upper slitter 1 and lower cutter 2, described upper slitter 1 includes upper slitter cutter hub, described lower cutter 2 includes lower cutter cutter hub, and the front end face of upper slitter cutter hub is provided with upper slitter blade face 105, and the limit that upper slitter blade face 105 is intersected with upper slitter front is upper slitter blade 106, the front end face of described lower cutter cutter hub is provided with lower cutter blade face 205, and the limit that lower cutter blade face 205 is intersected with lower cutter front is lower cutter blade 206.The upper slitter back side 107 processing of described cutting edge blade has upper slitter docking platform 101, on upper slitter docking platform 101, processing has detent 103, the processing of lower knife back face 207 has the lower cutter docking platform 201 corresponding with upper slitter docking platform 101, on lower cutter docking platform 201, processing has positioning boss 203, the accurate butt junction location at the upper slitter back side 107 and lower knife back face 207 it is capable of by the snap fit of detent 103 with positioning boss 203, by upper slitter 1 and lower cutter 2 be mutually twisted make upper slitter 1 dock with lower cutter 2 overlapping after combine more tight, breaking scrap is formed and makes a concerted effort, and then alleviate the abrasion of blade, improve the service life of blade, broken product is also comparatively regular, improve shearing quality.In addition, fastness and the stability of upper slitter 1 and the installation of lower cutter 2 can also be improved with the engaging of positioning boss 203 by detent 103, avoid cutting edge clamping bad and cutting edge blade work instability in use procedure, upper slitter 1 with lower cutter 2 because coordinating bad dislocation, thus affecting shear effect, it is difficult to keep face to be cut to remain a plane, and is easily caused edge of a knife generation heavy wear so that it is service life shortens.
The described upper slitter back side 107 processing has upper slitter installation base 102, described lower knife back face 207 processing has corresponding lower cutter installation base 202, and processing has the upper slitter installing hole 104 running through this installation base with upper slitter cutter hub in upper slitter installation base 102, in lower cutter installation base 202, processing has the lower cutter installing hole 204 running through this installation base with lower cutter cutter hub, make the upper slitter back side 107 and lower knife back face 207 fit, and it is fixing by the locking of upper slitter installing hole 104 and lower cutter installing hole 204, upper slitter 1 and lower cutter 2 to be carried out installation.Upper slitter 1 and lower cutter 2 back side is protruded from such that it is able to improve the fastness that upper slitter 1 is fixing with the assembling of lower cutter 2 further, it is prevented that clamping is unstable by upper slitter installing hole 104 and lower cutter installing hole 204 being each extended over.But under the effect of cyclic force, upper slitter installation base 102 and lower cutter installation base 202 easily rupture, thus affecting the fixed installation of cutting edge blade.In the present embodiment, upper slitter installing hole 104 has all processed counterbore near one end and the lower cutter installing hole 204 in upper slitter front near the one end in lower cutter front, upper slitter installation base 102 and lower cutter installation base 202 are all processed as cylindrical structural, and the bottom surrounding of upper slitter installation base 102 and lower cutter installation base 202 is equipped with R type reinforcement, thus enhancing upper slitter installation base 102 and lower cutter installation base 202 bearing load ability, desirably prevent blade mounting holes to ftracture in processing or use procedure, well eliminate upper and lower cutter and dock the phenomenon misfitted, the blade that processing obtains fullys meet drawing requirement, blade shear effect is good, efficiency is high.
The upper slitter 1 of the present embodiment and lower cutter 2 all adopt rough forging to prepare, and the components based on weight percentage of this rough forging is: C:0.55%；Si:0.80%；Cr:1.20%；W:2.20%；Mn:0.40%；Surplus is Fe, and the present embodiment is in conjunction with the structural design of blade, and by the component of blade and proportioning are optimized design, thus improve the combination properties such as the hardness of blade, wearability and impact resistance from raw material so that it is all can meet instructions for use.
The manufacture method of the above-mentioned jaw crusher cutting edge blade of the present embodiment, the steps include:
Step one, raw material prepare: described jaw crusher cutting edge blade adopts rough forging to make, and the components based on weight percentage of this rough forging is: C:0.55%；Si:0.80%；Cr:1.20%；W:2.20%；Mn:0.40%；Surplus is Fe.
Step 2, rough forging annealing: the rough forging in step one is carried out isothermal annealing process, and annealing temperature is 750 DEG C, temperature retention time 10 hours, then with the cooling rate of 20 DEG C/h, slow cooling to≤650 DEG C, air cooling of finally coming out of the stove.
Step 3, rough forging roughing: through step 2 make annealing treatment after, rough forging is carried out roughing, make the workpiece leaving allowance for finish, it is rough machined concretely comprises the following steps: 1. with lower cutter cutter hub, the upper slitter cutter hub of jaw crusher cutting edge blade being rough milled plane respectively and side becomes cuboid, length respectively puts surplus 2mm；2. the position line of cutter installing hole 104,2-φ 5mm, upper slitter docking platform 101 and detent 103 is stamped in the upper slitter back side 107 line；3. rough milling upper slitter installation base 102 cylindrical and upper slitter docking platform 101, each made allowance 3mm, machining center rough mills upper slitter installation base 102 cylindrical and reinforcement, detent 103, each made allowance 1mm, and counterbore 2-φ 38.5mm, deep 16mm are bored in upper slitter 1 front；4. in lower knife back face 207, cutter installing hole 204,2-φ 22mm and the position line of lower cutter docking platform 201 are laid in line；5. rough mill lower cutter installation base 202 cylindrical and lower cutter docking platform 201, each made allowance 3mm, rough mill lower cutter installation base 202 cylindrical and reinforcement, positioning boss 203, each made allowance 1mm；Counterbore 2-φ 50mm, deep 23mm are bored in lower cutter 2 front.
Step 4, heat treatment: will be sequentially carried out-quench-temper through the rough machined jaw crusher cutting edge blade of step 3, wherein:
(1) what make annealing treatment concretely comprises the following steps: will be incubated 2 hours through the rough machined jaw crusher cutting edge blade heating of step 3 to 750 DEG C, and then cool to 500 DEG C with the furnace, air cooling of finally coming out of the stove；
(2) the concretely comprising the following steps of Quenching Treatment: carry out secondary preheating before the quenching of jaw crusher cutting edge blade: first time is warming up to 500 DEG C, it is continuously heating to 750 DEG C after being incubated 10 minutes and carries out second time preheating, it is incubated 10 minutes again, finally it is warming up to 950 DEG C, it is incubated 15 minutes, and the oil quenching that carries out coming out of the stove, in the present embodiment, the hardening media of oil quenching selects 32# machine oil.
(3) the concretely comprising the following steps of temper: the jaw crusher cutting edge blade of quenched process is placed at 190 DEG C of temperature and carries out first time tempering, tempering insulation time is 2 hours, then carrying out second time temper at 220 DEG C of temperature, tempering insulation time is 2.5 hours；Finally carrying out third time temper at 250 DEG C of temperature, tempering insulation time is 2 hours.
Step 5, it is sequentially carried out ground finish, linear cutter, polish, line excision forming and reconditioning polishing to through the heat treated jaw crusher cutting edge blade of step 4, wherein:
Ground finish: fine grinding upper slitter 1 and 2 liang of planes of lower cutter (front and the back side) meet tolerance to size, the rear end face of fine grinding upper slitter 1 and lower cutter 2 and adjacent with rear end face two sides, guarantee that the rear end face after above-mentioned fine grinding and two sides intersected with rear end face are all vertical with cutter hub plane (cutter hub front or the back side), made allowance 1～1.5mm.
Polish: according to drawing requirement finish-milling upper slitter installation base 102 cylindrical and reinforcement, detent 103, lower cutter installation base 202 cylindrical and reinforcement, positioning boss 203, guarantee between upper slitter installing hole 104 and lower cutter installing hole 204, and coordinate between detent 103 with positioning boss 203 closely.
Line excision forming: use bolt that upper lower knife body is assembled and fastened, has assembled the jaw crusher cutting edge molding of fastening by the cutting of figure paper yarn.
Existing jaw crusher cutting edge blade is in breaking scrap work process, especially when steel scrap hardness is higher, when operating mode is complex, owing to upper slitter 1 is unstable with lower cutter 2 clamping, very easily misplace, thus causing that blade abrasion is serious, cutting edge easy fracture, docking is misfitted, and breaking scrap is of poor quality, otch is irregular, it is difficult to meet instructions for use.These problems above-mentioned are the bigger problems of puzzlement jaw crusher manufacturing firm and terminal client, and are never solved well.
Based on problem above, the present embodiment is set up by detent on upper slitter 103 and the setting of positioning boss (203) on lower cutter and upper slitter and the reinforcement of lower cutter installing hole cylindrical root circular arc, ensure that bottom knife is quite identical when docking, the identical rear knife edge face of upper and lower cutter docking is smooth.The edge of a knife acts on uniform force during steel scrap, and work surface intensity increases, and decreases shearing dynamics, and then alleviate the abrasion of blade, the hardness of this cutting edge is adjusted further simultaneously, improve the service life of blade, the steel scrap shear off is neat, in the same size, improves shearing quality.
In addition, inventor is according to the applying working condition of jaw crusher cutting edge blade and performance, and in conjunction with its experimental study and long-term production experience, the also selection to blade, processing technique and Technology for Heating Processing are optimized design, thus significantly improving the serviceability of cutting edge blade, can effectively prevent cutting edge blade from deforming in processing and use procedure, the wearability of the present embodiment gained blade is good, impact resistance is strong, working (machining) efficiency is high, solve blade abrasion during employing existing manufacture method serious, it is not durable, breaking scrap is of poor quality and the problem of cutting edge easy fracture, it still is able to be commonly used to the break process of variety classes steel scrap under various complex working condition, substantially prolongs the service life of jaw crusher cutting edge blade, reduce production cost, and ensure that the fragmentation quality of steel scrap.
Embodiment 2
A kind of jaw crusher cutting edge blade of the present embodiment, including upper slitter 1 and lower cutter 2, described upper slitter 1 includes upper slitter cutter hub, and described lower cutter 2 includes lower cutter cutter hub, and the front end face of upper slitter cutter hub is provided with upper slitter blade face 105, the front end face of lower cutter cutter hub is provided with lower cutter blade face 205.The upper slitter back side 107 processing of described cutting edge blade has upper slitter docking platform 101, on upper slitter docking platform 101, processing has detent 103, the processing of lower knife back face 207 has the lower cutter docking platform 201 corresponding with upper slitter docking platform 101, on lower cutter docking platform 201, processing has positioning boss 203, is capable of the accurate butt junction location at the upper slitter back side 107 and lower knife back face 207 by the snap fit of detent 103 with positioning boss 203.The upper slitter of the present embodiment and the length of lower cutter docking platform are less than the width of cutter hub, it is thus possible to be further ensured that detent 103 engages more identical with positioning boss 203, dock tightr, to ensure upper and lower blade face all the time at grade, strengthen the working strength of blade, shock resistance and anti-wear, thus increasing the service life of blade and increasing economic efficiency.
The described upper slitter back side 107 processing has upper slitter installation base 102, described lower knife back face 207 processing has corresponding lower cutter installation base 202, and processing has the upper slitter installing hole 104 running through this installation base with upper slitter cutter hub in upper slitter installation base 102, in lower cutter installation base 202, processing has the lower cutter installing hole 204 running through this installation base with lower cutter cutter hub, make the upper slitter back side 107 and lower knife back face 207 fit, and it is fixing by the locking of upper slitter installing hole 104 and lower cutter installing hole 204, upper slitter 1 and lower cutter 2 to be carried out installation.In the present embodiment, upper slitter installing hole 104 has all processed counterbore near one end and the lower cutter installing hole 204 in upper slitter front near the one end in lower cutter front, upper slitter installation base 102 and lower cutter installation base 202 are all processed as cylindrical structural, and the bottom surrounding of upper slitter installation base 102 and lower cutter installation base 202 is equipped with R type reinforcement.Above-mentioned upper slitter installing hole 104 is processed as square opening, and lower cutter installing hole 204 is processed as circular port.
In the present embodiment, a side adjacent with its blade face on upper slitter 1 and lower cutter 2 is processed as the plane all vertical with cutter hub rear end face and cutter hub front, and blade face is obliquely installed relative to this side, concrete, the angle α (namely upper and lower cutter blade face is relative to the angle of upper and lower cutter cutter hub) of blade face and this side can be processed as 57 °～60 ° as the case may be, so that blade is in optimum state, contributes to reducing blade abrasion, improve shear strength, and extend blade service life.In the present embodiment, upper and lower cutter blade face is 57 ° with the angle α of cutter hub.Another side adjacent with its blade face on upper slitter 1 and lower cutter 2 is all processed as folding face, this folding face is vertical with cutter hub rear end face near one section of plane of cutter hub rear end face, one section of plane in close blade face and the angle β in blade face are less than 90 °, upper and lower cutter is conducive to be tightly combined by this kind of structural design, engagement is firmly, and keep at grade after the sword face engagement of upper and lower cutter, enhance the cutting edge blade broken dynamics to steel scrap, improve shearing quality, and cutting edge blade distribution of force in use can be improved simultaneously, desirably prevent blade breakages and alleviate blade abrasion.
The upper slitter 1 of the present embodiment and lower cutter 2 all adopt rough forging to prepare, and the components based on weight percentage of this rough forging is: C:0.65%；Si:0.50%；Cr:1.00%；W:2.70%；Mn:0.40%；Surplus is Fe.
The manufacture method of the above-mentioned jaw crusher cutting edge blade of the present embodiment, the steps include:
Step one, raw material prepare: described jaw crusher cutting edge blade adopts rough forging to make, and the components based on weight percentage of this rough forging is: C:0.65%；Si:0.50%；Cr:1.00%；W:2.70%；Mn:0.40%；Surplus is Fe.
Step 2, rough forging annealing: the rough forging in step one is carried out isothermal annealing process, and annealing temperature is 760 DEG C, temperature retention time 8 hours, then with the cooling rate of 25 DEG C/h, slow cooling to≤650 DEG C, air cooling of finally coming out of the stove.
Step 3, rough forging roughing: through step 2 make annealing treatment after, rough forging is carried out roughing, make the workpiece leaving allowance for finish, it is rough machined concretely comprises the following steps: 1. with lower cutter cutter hub, the upper slitter cutter hub of jaw crusher cutting edge blade being rough milled plane respectively and side becomes cuboid, length respectively puts surplus 2mm；2. the position line of cutter installing hole 104,2-φ 5mm, upper slitter docking platform 101 and detent 103 is stamped in the upper slitter back side 107 line；3. rough milling upper slitter installation base 102 cylindrical and upper slitter docking platform 101, each made allowance 3mm, machining center rough mills upper slitter installation base 102 cylindrical and reinforcement, detent 103, each made allowance 1mm, and counterbore 2-φ 38.5mm, deep 16mm are bored in upper slitter 1 front；4. in lower knife back face 207, cutter installing hole 204,2-φ 22mm and the position line of lower cutter docking platform 201 are laid in line；5. rough mill lower cutter installation base 202 cylindrical and lower cutter docking platform 201, each made allowance 3mm, rough mill lower cutter installation base 202 cylindrical and reinforcement, positioning boss 203, each made allowance 1mm；Counterbore 2-φ 50mm, deep 23mm are bored in lower cutter 2 front.
Step 4, heat treatment: will be sequentially carried out-quench-temper through the rough machined jaw crusher cutting edge blade of step 3, wherein:
(1) what make annealing treatment concretely comprises the following steps: will be incubated 3 hours through the rough machined jaw crusher cutting edge blade heating of step 3 to 730 DEG C, and then cool to 500 DEG C with the furnace, air cooling of finally coming out of the stove；
(2) the concretely comprising the following steps of Quenching Treatment: carry out secondary preheating before the quenching of jaw crusher cutting edge blade: first time is warming up to 550 DEG C, it is continuously heating to 750 DEG C after being incubated 10 minutes and carries out second time preheating, it is incubated 10 minutes again, finally it is warming up to 950 DEG C, it is incubated 15 minutes, and the oil quenching that carries out coming out of the stove, in the present embodiment, the hardening media of oil quenching selects 32# machine oil.
(3) the concretely comprising the following steps of temper: the jaw crusher cutting edge blade of quenched process is placed at 200 DEG C of temperature and carries out first time tempering, tempering insulation time is 2 hours, then carrying out second time temper at 220 DEG C of temperature, tempering insulation time is 2.5 hours；Finally carrying out third time temper at 250 DEG C of temperature, tempering insulation time is 2 hours.
Step 5, it is sequentially carried out ground finish, linear cutter, polish, line excision forming and reconditioning polishing to through the heat treated jaw crusher cutting edge blade of step 4, wherein:
Ground finish: fine grinding upper slitter 1 and 2 liang of planes of lower cutter (front and the back side) meet tolerance to size, the rear end face of fine grinding upper slitter 1 and lower cutter 2 and adjacent with rear end face two sides, guarantee that the rear end face after above-mentioned fine grinding and two sides intersected with rear end face are all vertical with cutter hub plane (cutter hub front or the back side), made allowance 1～1.5mm.
Polish: according to drawing requirement finish-milling upper slitter installation base 102 cylindrical and reinforcement, detent 103, lower cutter installation base 202 cylindrical and reinforcement, positioning boss 203, guarantee between upper slitter installing hole 104 and lower cutter installing hole 204, and coordinate between detent 103 with positioning boss 203 closely.
Line excision forming: use bolt that upper lower knife body is assembled and fastened, has assembled the jaw crusher cutting edge molding of fastening by the cutting of figure paper yarn.
Embodiment 3
A kind of jaw crusher cutting edge blade of the present embodiment, including upper slitter 1 and lower cutter 2, described upper slitter 1 includes upper slitter cutter hub, and described lower cutter 2 includes lower cutter cutter hub, and the front end face of upper slitter cutter hub is provided with upper slitter blade face 105, the front end face of lower cutter cutter hub is provided with lower cutter blade face 205.The upper slitter back side 107 processing of described cutting edge blade has upper slitter docking platform 101, on upper slitter docking platform 101, processing has detent 103, the processing of lower knife back face 207 has the lower cutter docking platform 201 corresponding with upper slitter docking platform 101, on lower cutter docking platform 201, processing has positioning boss 203, is capable of the accurate butt junction location at the upper slitter back side 107 and lower knife back face 207 by the snap fit of detent 103 with positioning boss 203.The upper slitter of the present embodiment and the length of lower cutter docking platform are less than the width of cutter hub, it is thus possible to be further ensured that detent 103 engages more identical with positioning boss 203, dock tightr, to ensure upper and lower blade face all the time at grade, strengthen the working strength of blade, shock resistance and anti-wear, thus increasing the service life of blade and increasing economic efficiency.
The described upper slitter back side 107 processing has upper slitter installation base 102, described lower knife back face 207 processing has corresponding lower cutter installation base 202, and processing has the upper slitter installing hole 104 running through this installation base with upper slitter cutter hub in upper slitter installation base 102, in lower cutter installation base 202, processing has the lower cutter installing hole 204 running through this installation base with lower cutter cutter hub, make the upper slitter back side 107 and lower knife back face 207 fit, and it is fixing by the locking of upper slitter installing hole 104 and lower cutter installing hole 204, upper slitter 1 and lower cutter 2 to be carried out installation.In the present embodiment, upper slitter installing hole 104 has all processed counterbore near one end and the lower cutter installing hole 204 in upper slitter front near the one end in lower cutter front, upper slitter installation base 102 and lower cutter installation base 202 are all processed as cylindrical structural, and the bottom surrounding of upper slitter installation base 102 and lower cutter installation base 202 is equipped with R type reinforcement.Above-mentioned upper slitter installing hole 104 is processed as square opening, and lower cutter installing hole 204 is processed as circular port.
In the present embodiment, upper slitter 1 and a side adjacent with its blade face on lower cutter 2 are processed as the plane all vertical with cutter hub rear end face and cutter hub front, and the angle α of blade face and this side is 60 °.Another side adjacent with its blade face on upper slitter 1 and lower cutter 2 is all processed as folding face, be conducive to strengthening the cutting edge blade broken dynamics to steel scrap by this kind of structural design, improve shearing quality, and cutting edge blade distribution of force in use can be improved simultaneously, desirably prevent blade breakages and alleviate blade abrasion.
The upper slitter 1 of the present embodiment and lower cutter 2 all adopt rough forging to prepare, and the components based on weight percentage of this rough forging is: C:0.60%；Si:0.65%；Cr:1.30%；W:2.50%；Mn:0.40%；Surplus is Fe.
The manufacture method of the above-mentioned jaw crusher cutting edge blade of the present embodiment, the steps include:
Step one, raw material prepare: described jaw crusher cutting edge blade adopts rough forging to make, and the components based on weight percentage of this rough forging is: C:0.60%；Si:0.65%；Cr:1.30%；W:2.50%；Mn:0.40%；Surplus is Fe.
Step 2, rough forging annealing: the rough forging in step one is carried out isothermal annealing process, and annealing temperature is 755 DEG C, temperature retention time 9 hours, then with the cooling rate of 30 DEG C/h, slow cooling to≤650 DEG C, air cooling of finally coming out of the stove.
Step 3, rough forging roughing: through step 2 make annealing treatment after, rough forging is carried out roughing, make the workpiece leaving allowance for finish, it is rough machined concretely comprises the following steps: 1. with lower cutter cutter hub, the upper slitter cutter hub of jaw crusher cutting edge blade being rough milled plane respectively and side becomes cuboid, length respectively puts surplus 2mm；2. the position line of cutter installing hole 104,2-φ 5mm, upper slitter docking platform 101 and detent 103 is stamped in the upper slitter back side 107 line；3. rough milling upper slitter installation base 102 cylindrical and upper slitter docking platform 101, each made allowance 3mm, machining center rough mills upper slitter installation base 102 cylindrical and reinforcement, detent 103, each made allowance 1mm, and counterbore 2-φ 38.5mm, deep 16mm are bored in upper slitter 1 front；4. in lower knife back face 207, cutter installing hole 204,2-φ 22mm and the position line of lower cutter docking platform 201 are laid in line；5. rough mill lower cutter installation base 202 cylindrical and lower cutter docking platform 201, each made allowance 3mm, rough mill lower cutter installation base 202 cylindrical and reinforcement, positioning boss 203, each made allowance 1mm；Counterbore 2-φ 50mm, deep 23mm are bored in lower cutter 2 front.
Step 4, heat treatment: will be sequentially carried out-quench-temper through the rough machined jaw crusher cutting edge blade of step 3, wherein:
(1) what make annealing treatment concretely comprises the following steps: will be incubated 2.5 hours through the rough machined jaw crusher cutting edge blade heating of step 3 to 740 DEG C, and then cool to 500 DEG C with the furnace, air cooling of finally coming out of the stove；
(2) the concretely comprising the following steps of Quenching Treatment: carry out secondary preheating before the quenching of jaw crusher cutting edge blade: first time is warming up to 530 DEG C, it is continuously heating to 750 DEG C after being incubated 10 minutes and carries out second time preheating, it is incubated 10 minutes again, finally it is warming up to 950 DEG C, it is incubated 15 minutes, and the oil quenching that carries out coming out of the stove, in the present embodiment, the hardening media of oil quenching selects 32# machine oil.
(3) the concretely comprising the following steps of temper: the jaw crusher cutting edge blade of quenched process is placed at 180 DEG C of temperature and carries out first time tempering, tempering insulation time is 2 hours, then carrying out second time temper at 220 DEG C of temperature, tempering insulation time is 2.5 hours；Finally carrying out third time temper at 250 DEG C of temperature, tempering insulation time is 2 hours.
Step 5, it is sequentially carried out ground finish, linear cutter, polish, line excision forming and reconditioning polishing to through the heat treated jaw crusher cutting edge blade of step 4, wherein:
Ground finish: fine grinding upper slitter 1 and 2 liang of planes of lower cutter (front and the back side) meet tolerance to size, the rear end face of fine grinding upper slitter 1 and lower cutter 2 and adjacent with rear end face two sides, guarantee that the rear end face after above-mentioned fine grinding and two sides intersected with rear end face are all vertical with cutter hub plane (cutter hub front or the back side), made allowance 1～1.5mm.
Polish: according to drawing requirement finish-milling upper slitter installation base 102 cylindrical and reinforcement, detent 103, lower cutter installation base 202 cylindrical and reinforcement, positioning boss 203, guarantee between upper slitter installing hole 104 and lower cutter installing hole 204, and coordinate between detent 103 with positioning boss 203 closely.
Line excision forming: use bolt that upper lower knife body is assembled and fastened, has assembled the jaw crusher cutting edge molding of fastening by the cutting of figure paper yarn.
Schematically the present invention and embodiment thereof being described above, this description does not have restricted, and shown in accompanying drawing is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if those of ordinary skill in the art is enlightened by it, when without departing from the invention objective, design the frame mode similar to this technical scheme and embodiment without creationary, protection scope of the present invention all should be belonged to.
Claims (10)
- null1. a jaw crusher cutting edge blade，Including upper slitter (1) and lower cutter (2)，Described upper slitter (1) includes upper slitter cutter hub，Described lower cutter (2) includes lower cutter cutter hub，And the front end face of upper slitter cutter hub is provided with upper slitter blade face (105)，The front end face of lower cutter cutter hub is provided with lower cutter blade face (205)，It is characterized in that: the upper slitter back side (107) processing of described cutting edge blade has upper slitter docking platform (101)，The upper processing of upper slitter docking platform (101) has detent (103)，The processing of lower knife back face (207) has the lower cutter docking platform (201) corresponding with upper slitter docking platform (101)，The upper processing of lower cutter docking platform (201) has positioning boss (203)，The accurate butt junction location realizing the upper slitter back side (107) with lower knife back face (207) is coordinated by detent (103) and positioning boss (203).
- 2. a kind of jaw crusher cutting edge blade according to claim 1, it is characterized in that: described upper slitter (1) and lower cutter (2) all adopt rough forging to prepare, and the components based on weight percentage of this rough forging is: C:0.55～0.65%；Si:0.50～0.80%；Cr:1.00～1.30%；W:2.20～2.70%；Mn:0.40%；Surplus is Fe.
- 3. a kind of jaw crusher cutting edge blade according to claim 1 and 2, it is characterized in that: on described upper slitter cutter hub, processing has upper slitter installing hole (104), on described lower cutter cutter hub, processing has the lower cutter installing hole (204) corresponding with upper slitter installing hole (104), by the locking of upper slitter installing hole (104) and lower cutter installing hole (204), upper slitter (1) and lower cutter (2) is carried out installation fixing.
- 4. a kind of jaw crusher cutting edge blade according to claim 3, it is characterized in that: the described upper slitter back side (107) processing has upper slitter installation base (102), described lower knife back face (207) processing has lower cutter installation base (202), and described upper slitter installing hole (104) runs through upper slitter installation base (102) and upper slitter cutter hub, described lower cutter installing hole (204) runs through lower cutter installation base (202) and lower cutter cutter hub, and the bottom surrounding of upper slitter installation base (102) and lower cutter installation base (202) is equipped with R type reinforcement.
- 5. the manufacture method of a kind of jaw crusher cutting edge blade according to any one of claim 1-4, it is characterised in that: the steps include:Step one, raw material prepare: described jaw crusher cutting edge blade adopts rough forging to make, and the components based on weight percentage of this rough forging is: C:0.55～0.65%；Si:0.50～0.80%；Cr:1.00～1.30%；W:2.20～2.70%；Mn:0.40%；Surplus is Fe；Step 2, rough forging annealing: the rough forging in step one is carried out isothermal annealing process；Step 3, rough forging roughing: through step 2 make annealing treatment after, rough forging is carried out roughing, makes the workpiece leaving allowance for finish；Step 4, heat treatment: annealing-quenching-temper will be sequentially carried out through the rough machined jaw crusher cutting edge blade of step 3；Step 5, it is sequentially carried out ground finish, linear cutter, polish, line excision forming and reconditioning polishing to through the heat treated jaw crusher cutting edge blade of step 4.
- 6. the manufacture method of a kind of jaw crusher cutting edge blade according to claim 5, it is characterized in that: the annealing temperature that rough forging carries out in step 2 isothermal annealing process is 750～760 DEG C, temperature retention time 8～10 hours, then with the cooling rate of 20 DEG C/h, slow cooling extremely≤650 DEG C, air cooling of finally coming out of the stove.
- 7. the manufacture method of a kind of jaw crusher cutting edge blade according to claim 5, it is characterized in that: what make annealing treatment in step 4 concretely comprises the following steps: 2～3 hours will be incubated through the rough machined jaw crusher cutting edge blade heating of step 3 to 730～750 DEG C, then 500 DEG C are cooled to the furnace, air cooling of finally coming out of the stove.
- 8. the manufacture method of a kind of jaw crusher cutting edge blade according to claim 5, it is characterized in that: the concretely comprising the following steps of Quenching Treatment in step 4: carry out secondary preheating before the quenching of jaw crusher cutting edge blade: first time is warming up to 500～550 DEG C, it is continuously heating to 750 DEG C after being incubated 10 minutes and carries out second time preheating, it is incubated 10 minutes again, finally it is warming up to 950 DEG C, it is incubated 15 minutes, and the oil quenching that carries out coming out of the stove.
- 9. the manufacture method of a kind of jaw crusher cutting edge blade according to claim 8, it is characterised in that: in step 4, the hardening media of oil quenching selects 32# machine oil.
- 10. the manufacture method of a kind of jaw crusher cutting edge blade according to claim 5, it is characterized in that: the concretely comprising the following steps of temper in step 4: the jaw crusher cutting edge blade of quenched process is placed at 180～200 DEG C of temperature and carries out first time tempering, tempering insulation time is 2 hours, then carrying out second time temper at 220 DEG C of temperature, tempering insulation time is 2.5 hours；Finally carrying out third time temper at 250 DEG C of temperature, tempering insulation time is 2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610374574.4A CN105798565B (en) | 2016-05-26 | 2016-05-26 | A kind of jaw crusher cutting edge blade and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610374574.4A CN105798565B (en) | 2016-05-26 | 2016-05-26 | A kind of jaw crusher cutting edge blade and its manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105798565A true CN105798565A (en) | 2016-07-27 |
| CN105798565B CN105798565B (en) | 2017-11-24 |
Family
ID=56427930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610374574.4A Active CN105798565B (en) | 2016-05-26 | 2016-05-26 | A kind of jaw crusher cutting edge blade and its manufacture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105798565B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747248A (en) * | 2018-06-19 | 2018-11-06 | 安徽日升机械制造有限公司 | A kind of manufacturing method of the wear-resisting sewing machine cutting edge of high-precision |
| CN109576457A (en) * | 2018-12-19 | 2019-04-05 | 中钢集团邢台机械轧辊有限公司 | A kind of heat treatment method of cutting edge |
| CN110355390A (en) * | 2019-06-11 | 2019-10-22 | 郑州华菱超硬材料有限公司 | A kind of ceramic binder cubic boron nitride cutting tool of suitable processing high temperature alloy |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003088768A (en) * | 2001-09-20 | 2003-03-25 | Techno Sakato:Kk | Crusher |
| JP2009101323A (en) * | 2007-10-25 | 2009-05-14 | Hitachi Constr Mach Co Ltd | Engine crushing attachment and engine dismantling machine |
| CN201711596U (en) * | 2010-07-02 | 2011-01-19 | 安徽天一重工股份有限公司 | Composite cutting edge for shearing hot steel billet |
| US20130270379A1 (en) * | 2012-04-11 | 2013-10-17 | John R. Ramun | Jaw set with serrated cutting blades |
| CN103433551A (en) * | 2013-09-04 | 2013-12-11 | 马鞍山市恒利达机械刀片有限公司 | Swinging type concave-convex shear blade and manufacturing method thereof |
| CN203900614U (en) * | 2014-06-04 | 2014-10-29 | 南阳汉冶特钢有限公司 | Reusable shear blade for hydraulic double side trim shear |
| CN205253205U (en) * | 2015-12-29 | 2016-05-25 | 烟台金山重工机械设备有限公司 | Novel smash pincers |
| CN205629833U (en) * | 2016-05-26 | 2016-10-12 | 马鞍山市恒利达机械刀片有限公司 | Jaw breaker cuts bladed knife piece |
-
2016
- 2016-05-26 CN CN201610374574.4A patent/CN105798565B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003088768A (en) * | 2001-09-20 | 2003-03-25 | Techno Sakato:Kk | Crusher |
| JP2009101323A (en) * | 2007-10-25 | 2009-05-14 | Hitachi Constr Mach Co Ltd | Engine crushing attachment and engine dismantling machine |
| CN201711596U (en) * | 2010-07-02 | 2011-01-19 | 安徽天一重工股份有限公司 | Composite cutting edge for shearing hot steel billet |
| US20130270379A1 (en) * | 2012-04-11 | 2013-10-17 | John R. Ramun | Jaw set with serrated cutting blades |
| CN103433551A (en) * | 2013-09-04 | 2013-12-11 | 马鞍山市恒利达机械刀片有限公司 | Swinging type concave-convex shear blade and manufacturing method thereof |
| CN203900614U (en) * | 2014-06-04 | 2014-10-29 | 南阳汉冶特钢有限公司 | Reusable shear blade for hydraulic double side trim shear |
| CN205253205U (en) * | 2015-12-29 | 2016-05-25 | 烟台金山重工机械设备有限公司 | Novel smash pincers |
| CN205629833U (en) * | 2016-05-26 | 2016-10-12 | 马鞍山市恒利达机械刀片有限公司 | Jaw breaker cuts bladed knife piece |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747248A (en) * | 2018-06-19 | 2018-11-06 | 安徽日升机械制造有限公司 | A kind of manufacturing method of the wear-resisting sewing machine cutting edge of high-precision |
| CN109576457A (en) * | 2018-12-19 | 2019-04-05 | 中钢集团邢台机械轧辊有限公司 | A kind of heat treatment method of cutting edge |
| CN110355390A (en) * | 2019-06-11 | 2019-10-22 | 郑州华菱超硬材料有限公司 | A kind of ceramic binder cubic boron nitride cutting tool of suitable processing high temperature alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105798565B (en) | 2017-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103433551B (en) | The manufacture method of the concavo-convex shear blade of a kind of pendulum-type | |
| CN100507060C (en) | Disk shearing blade and method for manufacturing the same | |
| CN102766817B (en) | Semi-high speed steel shear steel | |
| CN103639676B (en) | A kind of crescent-moon scissors slice processing method with high-wearing feature and strong impact resistance | |
| CN105798565A (en) | Shear blade of jaw crusher and manufacturing method thereof | |
| CN102776446B (en) | Semi-high speed steel copper soldering inlaid steel cutting blade and manufacturing method thereof | |
| CN103317313A (en) | Automobile hub bolt and machining technology thereof | |
| CN102886916A (en) | Pressure roller for biomass briquetting machine and machining method for pressure roller | |
| CN103028919B (en) | Production and machining method for bed knife of lawn mower | |
| CN103042154A (en) | Knuckle assembly, processing method thereof and vehicle comprising knuckle assembly | |
| CN105525230A (en) | Method for manufacturing cutting tools from high-speed W18Cr4Nb material | |
| CN105855443B (en) | A kind of trim die of combined type cutting edge | |
| CN205629833U (en) | Jaw breaker cuts bladed knife piece | |
| CN104690298A (en) | Turning method for high-speed steel roller | |
| CN105377480A (en) | Ultrasonic steel horn for tire cutting and method of manufacturing the same | |
| CN103120977B (en) | Combined conveniently-detached tool for multi-jaw waste material breaker | |
| CN211248502U (en) | Machining cutter for stainless steel parts | |
| CN104400358B (en) | The processing method that tool rest is combined in a kind of double millings of mechanical quick-replaceable type aluminium ingot | |
| CN102837053A (en) | End mill and method for milling compressor scroll by using the same | |
| CN208019438U (en) | A kind of single side tank car paring blade | |
| CN102091909A (en) | Production technique for blades for agricultural machinery | |
| CN109623302A (en) | The manufacturing method of big blade edger | |
| CN202527727U (en) | Round turning tool blade for train wheel | |
| CN211488017U (en) | Based on high-speed two-way stirring S sword | |
| CN203196709U (en) | Conveniently-detached combined cutter for multi-claw waste crusher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |