CN110153186A - High alloy mould steel hollow bloom preparation method and high alloy mould steel hollow bloom and tubing and annular cutter - Google Patents
High alloy mould steel hollow bloom preparation method and high alloy mould steel hollow bloom and tubing and annular cutter Download PDFInfo
- Publication number
- CN110153186A CN110153186A CN201910379194.3A CN201910379194A CN110153186A CN 110153186 A CN110153186 A CN 110153186A CN 201910379194 A CN201910379194 A CN 201910379194A CN 110153186 A CN110153186 A CN 110153186A
- Authority
- CN
- China
- Prior art keywords
- steel
- high alloy
- hollow
- mould steel
- alloy mould
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 158
- 239000010959 steel Substances 0.000 title claims abstract description 158
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 76
- 239000000956 alloy Substances 0.000 title claims abstract description 76
- 238000002360 preparation method Methods 0.000 title claims abstract description 40
- 238000005242 forging Methods 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 43
- 238000000137 annealing Methods 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000007670 refining Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000003754 machining Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 238000000518 rheometry Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 description 11
- 239000007787 solid Substances 0.000 description 8
- 238000004080 punching Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- FXNGWBDIVIGISM-UHFFFAOYSA-N methylidynechromium Chemical compound [Cr]#[C] FXNGWBDIVIGISM-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/56—Elongation control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/04—Casting hollow ingots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D35/00—Tools for shearing machines or shearing devices; Holders or chucks for shearing tools
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2265/00—Forming parameters
- B21B2265/10—Compression, e.g. longitudinal compression
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Forging (AREA)
Abstract
The present invention provides a kind of high alloy mould steel hollow bloom preparation method and high alloy mould steel hollow blooms and tubing and annular cutter, hollow bloom preparation method of the invention includes that hollow steel ingot closed at one end is made in the high alloy mould steel molten steel after refining, completely meet the rheo-material for being hot-forged deformation requirements in filling in hollow steel ingot, the open at one end of hollow steel ingot is closed again, the hollow steel ingot that will be filled with rheo-material enters furnace and is heated, the hollow steel ingot heated is come out of the stove and carries out the obtained high alloy tool and mould steel billet of radial forging in precise forging machine, and steel billet is entered into furnace and is annealed, cooling aligning after annealing, and determine the position of high alloy tool and mould steel billet both ends inner hole, steel billet ends are cut off, the rheo-material of filling is removed again to obtain high alloy mould steel hollow bloom.The present invention forms a kind of high alloy mould steel hollow bloom new preparation process, and shortens manufacturing process flow, and quality, stock utilization and production efficiency can be improved.
Description
Technical field
The present invention relates to metallurgical technology field, in particular to a kind of high alloy mould steel hollow bloom preparation method, this
Invention also relates to the high alloy mould steel hollow bloom as prepared by method made above, and by the high alloy work mould
Have tubing and annular cutter made from hollow bloom.
Background technique
High alloy mould steel, such as high speed steel M2, M35, M2Al etc., high carbon chromium cold work die steel Cr12Mo1V1, high-ductility
High wear-resisting cold process mould steel HYC3 etc. and the hot die steels such as H13E, H13, H12, these high alloy mould steels are used extensively
In manufacturing various cutting tools and miscellaneous mold, rolled including large hollow broaching tool, hobboing cutter, hollow roll, shield
Knife, disc shear blade thereby etc..Because high alloy mould steel contains the alloying elements such as a large amount of W, Mo, Cr, V, element of coagulation when smelting
Unevenly, segregation is serious, and containing a large amount of carbide, qualified steel ingot specification is restricted, therefore needs special metallurgy side
Method preparation, and big heat distortion amount is needed to be crushed, so that it is had the equal of tool and mould requirement to improve its distribution
Tissue, can just obtain the tool and mould steel of required properties.
Center portion is generally emptied using solid bar or solid forging stock rushes by existing traditional hollow tool and mould manufacturing method
The technique that Kong Houzai reaming circularizes part prepares blank, these methods are generally existing time-consuming and laborious, and process route is long, lumber recovery,
Qualification rate is low, especially inefficiency the deficiencies of.And some other is used for the conventional production process compared with low alloy steel, such as perforates
Technology, three-roll continuous rolling unit steel pipe rolling technology etc., it is also difficult to be applied on high alloy work mould steel.
Wherein, for existing hollow tool and mould manufacturing method, by taking the preparation of H13E shield Hob ring as an example, prior art stream
Journey obtains 315 ingots of φ → finish forge for intermediate frequency smelting → electroslag remelting and rushes at 160 bases of φ → annealing → accurate blanking → heating forges →
Hole → reaming → die-forging forming → annealing → machining → cutter ring base inspection → delivery.Using the preparation of above-mentioned prior art process
Shield Hob ring, steel ingot core structure is bad, stock utilization only 53%, and preparation process long flow path, production efficiency are low.
Since high alloy mould steel process plastic is poor, deformation temperature section is narrow, and resistance of deformation is big, and difficulty of processing is big, consumption
When it is at high cost, and quality is difficult to be guaranteed.Though thus knowing hollow high alloy mould steel using hollow tube not only
The quality of product can be improved, production efficiency, stock utilization can also greatly improve, but based on above-mentioned reason, high alloy work
The preparation of the hollow tube of mould steel is always problem.
Summary of the invention
In view of this, the present invention is directed to propose a kind of high alloy mould steel hollow bloom preparation method, height can be formed
The new preparation process of alloy mould steel hollow bloom.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of high alloy mould steel hollow bloom preparation method, this method comprise the following steps that
A, hollow steel ingot closed at one end is made in the high alloy mould steel molten steel after refining；
B, filling completely meets the rheo-material of hot forging deformation requirements in Yu Suoshu hollow steel ingot, and after rheo-material is consolidated
The open at one end of hollow steel ingot is closed again, the hot forging deformation requirements include rheo-material with higher than Forge Heating temperature
Fusing point, do not react when heated with steel, be hot-forged deformation when own vol do not change, and can with steel ingot deform send out
Raw uniform rheology；
C, the hollow steel ingot that will be filled with rheo-material enters furnace and is heated；
D, the hollow steel ingot heated is come out of the stove, radial forging is carried out in precise forging machine, the satisfactory height of diameter is made
Alloy tool and mould steel billet, and the high alloy tool and mould steel billet is entered into furnace and is annealed, cooling aligning after annealing；
E, the position for determining high alloy tool and mould steel billet both ends inner hole, cuts off steel billet ends in the position, then will filling
Rheo-material remove, obtain high alloy mould steel hollow bloom.
Further, molten steel is made by hollow steel ingot using injection molding in step a.
Further, it is heated in step c by the cogging heating schedule of the high alloy mould steel respective steel trade mark.
Further, the deformation ratio of hollow steel ingot should be not less than 3 when carrying out radial forging in step d in precise forging machine.
Further, be in step e the position of both ends inner hole is determined by ultrasonic examination, and for by band saw by steel billet
Both ends removal.
Further, the rheo-material is alumdum.
Compared with the existing technology, present invention has the advantage that
High alloy mould steel hollow bloom preparation method of the invention, by by rheology material and finish forge cogging work
Skill combines, and forms a kind of new preparation process of high alloy mould steel hollow bloom, may make high alloy tool and mould
The forging preparation of steel hollow bloom and conventional solid steel ingot forging preparation are equally convenient, and enable to high alloy mould steel
Hollow bloom manufacturing process flow shortens, Quality advance, and stock utilization improves, and improves production efficiency.
The present invention also proposed the high alloy work prepared by the above high alloy mould steel hollow bloom preparation method simultaneously
Mould steel hollow bloom.
In addition, the invention also provides a kind of high alloy mould steel tubing and a kind of annular cutters.
Wherein, the high alloy mould steel tubing by the above high alloy mould steel hollow bloom through sizing, railway carriage,
Flaw detection finishing obtains.The annular cutter by after above-described high alloy mould steel hollow bloom blanking through machining or
It is obtained after person's roll off, die forging.
And it is further, the annular cutter can be machined obtained disc shear blade thereby, alternatively, the endless knife
Tool can be the shield Hob ring obtained after roll off, die forging.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.Meanwhile if not otherwise specified, the processing method and its used process equipment referred in the present embodiment, equal reference
Traditional machining processes in existing high alloy tool and mould processing, the technological specification according to the respective steel trade mark carry out.
Embodiment one
The present embodiment is related to high alloy mould steel hollow bloom preparation method, and this method is specifically included the height after refining
Hollow steel ingot closed at one end is made using injection molding or other techniques in alloy mould steel molten steel, then in manufactured hollow
Filling completely meets the rheo-material of hot forging deformation requirements in steel ingot, and again by the opening of hollow steel ingot one after rheo-material is consolidated
End seal is closed.Then, the hollow steel ingot that will be filled with rheo-material enters furnace and is heated, and hollow steel ingot is come out of the stove after heating, and
Radial forging is carried out in precise forging machine, the satisfactory high alloy tool and mould steel billet of diameter is made, then by the high alloy work mould
Tool steel billet enters furnace and anneals, cooling aligning after annealing.Then, it is determined that the high alloy tool and mould steel billet both ends inner hole after aligning
Position cuts off steel billet ends in the position, then the rheo-material of filling is removed, and just obtains high alloy mould steel hollow pipe
Base.
Wherein, described in above-mentioned preparation method and hot forging deformation requirements include rheo-material have than Forge Heating temperature
High fusing point, own vol does not change and the rheo-material when not reacting with steel when heated, being hot-forged deformation
It can be deformed with steel ingot and uniform rheology occurs.And the uniform rheology namely in the steel ingot filled with the rheo-material by radial direction
When forging, by the variation for the draw ratio that steel ingot occurs by forging, rheo-material can with elongated attenuate of steel ingot respective flow,
Attenuate so that rheo-material entirety is also elongated, to remain consistent with the configuration of steel ingot after forging variation, guarantees rheology
Material is in steel ingot in the stable state filled and be full of.When it is implemented, alumdum for example can be used in rheo-material
(Al2O3), and the granularity of alumdum generally should be between 60~120mm.Certainly, above-mentioned to meet hot forging deformation in addition to alumdum
It is required that rheo-material other materials can also be used.
The rheo-material for meeting hot forging deformation requirements by filling, can play support hollow steel ingot in subsequent radial forging
Inner wall, to guarantee the effect of internal via shape.And rheo-material meets hot forging deformation requirements, can also be easy after processing is completed
It is cleaned up from inner hole.
In the method made above of the present embodiment, the hollow steel ingot filled with rheo-material is heated, should be closed by height
The cogging heating schedule of the metal working mould steel respective steel trade mark carries out.And the annealing of subsequent high alloy tool and mould steel billet is also according to phase
The annealing process system of the steel trade mark is answered to carry out.In addition, the hollow steel ingot after heating carries out radial forging, steel in precise forging machine
Ingot surrounding uniform force, rheo-material is due to constancy of volume, and in the case where steel ingot pulling, rheo-material integrally also becomes therewith
It is long, and it is proportional to steel ingot attenuate, can be by the support of rheo-material, so that steel ingot keeps uniform wall thickness when forging with this
With inner hole circularity.
The deformation ratio of hollow steel ingot should be not less than 3 when carrying out radial forging in the present embodiment, in precise forging machine, such as it can be
3,3.2,3.5 or 4,4.5,5 etc..And due to the air quenching of high alloy mould steel can through hardening and martensite transfor mation occurs, it is easy to
It causes structural stress to crack, therefore carries out annealing after forging in precise forging machine after ingot slow cool in time and be necessary.After annealing, right
Steel ingot is aligned, and still relies upon the supporting role of the rheo-material of internal filling at this time, in aligning prepared by the present embodiment
Steel ingot can guarantee that pipe is not crushed and keeps its shape as existing single solid steel material.
In the present embodiment, as preferred embodiment, it can be determined by way of ultrasonic examination in steel billet both ends
The position in hole, the position of inner hole described herein namely inside steel billet are at the both ends of inner hole of same internal diameter.Furthermore, it is necessary to
Illustrate, when determining inner hole end positions by ultrasonic examination, the detection of defect on pipe can also be carried out simultaneously certainly,
To determine the type and size of defect, and the defective locations detected can remove together when removing steel billet both ends.Determining two
In holding behind hole site, the present embodiment can specifically be removed the both ends of steel billet by band saw, be filled with exposing at the both ends of steel billet
Rheo-material, prepared pipe can be obtained by then clearing up rheo-material.
The preparation method of the present embodiment at least has as follows compared with existing high alloy mould steel tubing preparation method
The advantage of several respects.
First, the utilization rate of material greatly improves.For example prepare and empty broaching tool base (longer pipe), prior art is using forging
The solid bar of system, and inner hole is dug out using lathe machining, the utilization rate of steel is low.And the present invention can be direct by hollow ingot
Forging forms, and can be swaged into more appropriate pipe according to the hollow ingot for designing suitable aperture is calculated, be reprocessed into and empty drawing
Cutter blank, stock utilization will greatly improve, while inner wall quality is also well many than the bar directly emptied.
Second, the process procedure of ring product preparation can be reduced.By taking the preparation of shield Hob ring as an example, existing procedure is real
After heart bar material baiting, first forging into Ping shape, successively then punching, punching, reaming, die forging or roll off are machined at Hob ring again
Type.And hollow bloom is prepared according to preparation method of the present invention, after process is the accurate blanking of hollow bloom, then reaming, die forging
Or roll off is at Hob ring, it is then machining.Two compare, and present invention eliminates forge cake and punching and again heater
Sequence, while the waste of material of punching is also reduced, and inner wall defect as caused by punching quality problem etc..
The metallurgical quality of pipe can be improved in third, the present embodiment preparation method, and improves metallurgical imperfection distribution, and advantageous
In the quality and yield rate that improve finished product tubing and annular cutter made of pipe.
The present invention uses manufactured hollow ingot, is injected into shape especially for hollow ingot, the more same diameter of tube wall it is solid
Ingot solidification size is much smaller (being approximately 1/4 or so of solid ingot diameter), and curing condition is far better, and metallurgical rarefaction defect
It is between in the pipe wall and slight, simultaneously because silent defect thus avoids solid in subsequent forging pipe process meeting soldering
Ingot is possibly formed into the inner hole of finished product pipe fitting inner wall or ring after center portion forms metallurgical imperfection or punching on a large scale or empties
The flaws at place.
The preparation method of the present embodiment is further illustrated with a specific preparating example below.
In the preparating example, specifically with the system of HYC3 (Cr8Mo2V2WSiNb) high malleable high wear-resisting cold process mould steel pipe
It is illustrated for standby, for making cold belt bead cutter cylinder blade, the outer diameter of the pipe of preparation is the mould steel pipe
240mm, internal diameter 105mm.Its processing step is as described below.
HYC3 molten steel is smelted using IF+LF refinery practice, internal diameter φ is prepared into using the injection of jet metaurgy forming technology
The hollow ingot of 200mm outer diameter φ 500mm high 1500mm, hollow ingot upper end closed, lower ending opening, and manufactured hollow ingot is annealed
It is spare.
Then, the alumdum through overbaking is packed into the inner hole of hollow ingot, is consolidated in filling, with iron plate by steel after filling
Ingot is open in port cap and welds and shuts.Then, the hollow ingot that will fill alumdum enters and heats in SX55 annular furnace, heating temperature
1150 DEG C of degree keeps the temperature 5 hours, and forging into outer diameter after coming out of the stove in SX55 precise forging machine is φ 250mm, gets off and is air-cooled to after finish forge
400 DEG C or so, reenter electric annealing furnace and anneal, 880 DEG C of annealing temperature, keep the temperature 4 hours furnaces to 740 DEG C, then with≤10 DEG C/
Hour slowly cool to 650 DEG C, then be furnace-cooled to 550 DEG C come out of the stove it is air-cooled.
Then, the steel ingot after annealing is carried out a little rectifying on hydraulic straightening machine, after curvature reaches requirement, carries out ultrasonic wave
Flaw detection determines inner hole both ends tip position, then cuts away ingot head with band saw and expose inner hole, then clears up internal alumdum
Out, detection inner hole aperture is about φ 98mm.It can become more closely knit due to forging after the heating of powdery alumdum, therefore its whole institute
The volume that takes up space can be reduced, so pipe internal diameter is more slightly larger than reduced outer diameter ratio.
Finally, recycling Lengthened lathe carries out pipe outer circle and inner circle machining as needed, it is processed into outer circle φ
The finished product pipe of 240mm and internal diameter φ 105mm.And after measured, it is black from hollow steel ingot to pipe in above-mentioned preparation process
Skin lumber recovery is about 82%.
Embodiment two
The present embodiment first relates to a kind of high alloy mould steel hollow bloom, high alloy mould steel hollow bloom tool
Body is prepared by the high alloy mould steel hollow bloom preparation method in embodiment one, and specific preparation is referring to embodiment
It is described in one, details are not described herein.
In addition, the present embodiment has been also related to a kind of high alloy mould steel tubing and a kind of annular cutter.
Wherein, the high alloy mould steel tubing of the present embodiment by the above high alloy mould steel hollow bloom through sizing,
Railway carriage, flaw detection finishing obtain.And annular cutter then by after above high alloy mould steel hollow bloom blanking through machining or
Obtained after person's roll off, die forging, it is machined at this time obtain for example but disc shear blade thereby, the example obtained after roll off, die forging
It can be shield Hob ring if.
It is thick to be suitable for production using the preparation method in embodiment one for the high alloy mould steel hollow bloom of the present embodiment
Wall hollow tube, and annular tool and mould cutter can be further made, and it can save relative to prior art and empty solid material
Production efficiency can be improved in process and material, and has good practicability.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of high alloy mould steel hollow bloom preparation method, it is characterised in that: this method comprises the following steps that
A, hollow steel ingot closed at one end is made in the high alloy mould steel molten steel after refining；
B, filling completely meets the rheo-material of hot forging deformation requirements in Yu Suoshu hollow steel ingot, and again will after rheo-material is consolidated
The open at one end of hollow steel ingot is closed, and the hot forging deformation requirements include that rheo-material has higher than Forge Heating temperature melt
Point, do not react when heated with steel, be hot-forged deformation when own vol do not change, and can with steel ingot deform occur
Uniform rheology；
C, the hollow steel ingot that will be filled with rheo-material enters furnace and is heated；
D, the hollow steel ingot heated is come out of the stove, radial forging is carried out in precise forging machine, the satisfactory high alloy of diameter is made
Tool and mould steel billet, and the high alloy tool and mould steel billet is entered into furnace and is annealed, cooling aligning after annealing；
E, the position for determining high alloy tool and mould steel billet both ends inner hole, cuts off steel billet ends in the position, then by the stream of filling
Become material to remove, obtains high alloy mould steel hollow bloom.
2. high alloy mould steel hollow bloom preparation method according to claim 1, it is characterised in that: adopted in step a
Hollow steel ingot is made in molten steel with injection molding.
3. high alloy mould steel hollow bloom preparation method according to claim 1, it is characterised in that: pressed in step c
The cogging heating schedule of the high alloy mould steel respective steel trade mark is heated.
4. high alloy mould steel hollow bloom preparation method according to claim 1, it is characterised in that: smart in step d
The deformation ratio of hollow steel ingot should be not less than 3 when carrying out radial forging in forging machine.
5. high alloy mould steel hollow bloom preparation method according to claim 1, it is characterised in that: be in step e
Determine the position of both ends inner hole, and by ultrasonic examination to remove the both ends of steel billet by band saw.
6. high alloy mould steel hollow bloom preparation method according to any one of claim 1 to 5, feature exist
In: the rheo-material is alumdum.
7. a kind of height prepared by high alloy mould steel hollow bloom preparation method described in any one of claims 1 to 6
Alloy mould steel hollow bloom.
8. a kind of high alloy mould steel tubing, it is characterised in that: the high alloy mould steel tubing is as described in claim 7
High alloy mould steel hollow bloom through sizing, railway carriage, flaw detection finishing obtain.
9. a kind of annular cutter, it is characterised in that: the annular cutter is hollow by high alloy mould steel as claimed in claim 7
It is obtained after machining or roll off, die forging after pipe blanking.
10. annular cutter according to claim 9, it is characterised in that: the annular cutter is machined obtained circle
Disk shear blade, alternatively, the annular cutter is the shield Hob ring obtained after roll off, die forging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910379194.3A CN110153186B (en) | 2019-05-08 | 2019-05-08 | Method for preparing high alloy tool and die steel hollow pipe blank, hollow pipe blank and annular cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910379194.3A CN110153186B (en) | 2019-05-08 | 2019-05-08 | Method for preparing high alloy tool and die steel hollow pipe blank, hollow pipe blank and annular cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110153186A true CN110153186A (en) | 2019-08-23 |
| CN110153186B CN110153186B (en) | 2021-07-06 |
Family
ID=67633711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910379194.3A Active CN110153186B (en) | 2019-05-08 | 2019-05-08 | Method for preparing high alloy tool and die steel hollow pipe blank, hollow pipe blank and annular cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110153186B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112705656A (en) * | 2020-11-12 | 2021-04-27 | 贵阳安大宇航材料工程有限公司 | H13E shield hob ring forming process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101045246A (en) * | 2006-03-31 | 2007-10-03 | 坤威实业有限公司 | Method for forming pipe fitting |
| CN101176904A (en) * | 2006-11-08 | 2008-05-14 | 锺旻儒 | Method for shaping hollow iron bannister |
| CN203679274U (en) * | 2014-01-24 | 2014-07-02 | 江苏理工学院 | 3D printing device for metal blank with central hole |
| EP2910320A1 (en) * | 2014-02-21 | 2015-08-26 | Superalloy Industrial Co., Ltd. | Method for forming hollow parts |
| CN105269270A (en) * | 2015-11-27 | 2016-01-27 | 吉林省维尔特隧道装备有限公司 | Production process for disc cutter ring of tunnel boring machine (TBM) |
| CN106311859A (en) * | 2016-08-25 | 2017-01-11 | 四川三洲川化机核能设备制造有限公司 | Method for thick-wall three-way hot-press axial compensation forming with quartz powder as pressure transmission medium |
-
2019
- 2019-05-08 CN CN201910379194.3A patent/CN110153186B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101045246A (en) * | 2006-03-31 | 2007-10-03 | 坤威实业有限公司 | Method for forming pipe fitting |
| CN101176904A (en) * | 2006-11-08 | 2008-05-14 | 锺旻儒 | Method for shaping hollow iron bannister |
| CN203679274U (en) * | 2014-01-24 | 2014-07-02 | 江苏理工学院 | 3D printing device for metal blank with central hole |
| EP2910320A1 (en) * | 2014-02-21 | 2015-08-26 | Superalloy Industrial Co., Ltd. | Method for forming hollow parts |
| CN105269270A (en) * | 2015-11-27 | 2016-01-27 | 吉林省维尔特隧道装备有限公司 | Production process for disc cutter ring of tunnel boring machine (TBM) |
| CN106311859A (en) * | 2016-08-25 | 2017-01-11 | 四川三洲川化机核能设备制造有限公司 | Method for thick-wall three-way hot-press axial compensation forming with quartz powder as pressure transmission medium |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112705656A (en) * | 2020-11-12 | 2021-04-27 | 贵阳安大宇航材料工程有限公司 | H13E shield hob ring forming process |
| CN112705656B (en) * | 2020-11-12 | 2023-03-14 | 贵阳安大宇航材料工程有限公司 | H13E shield hob ring forming process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110153186B (en) | 2021-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1098136C (en) | Method for producing steel rolling bearing rings | |
| CN1064276C (en) | Method of manufacturing seamless steel pipes and manufacturing equipment therefor | |
| CN102962425B (en) | Preparation method of oblique oil cylinder body | |
| CN101722262B (en) | New method for producing medium and large caliber alloy steel seamless pipe by utilizing radial forging technology | |
| CN103990938B (en) | With continuous casting billet Plastic Forming large scale bearing, the process of pinion steel | |
| CN109894473A (en) | A kind of method that continuous casting billet directly forges production hot die steel | |
| CN104325838B (en) | A kind of high ferro wheel and hot extrusion integral forming method thereof | |
| CN110512061B (en) | Process method for producing die steel by directly forging continuous casting billet | |
| CN107971710A (en) | A kind of manufacture method of TA1 materials ring forging | |
| CN108714765A (en) | A kind of manufacturing process and alloy wheel of alloy wheel | |
| CN109022849A (en) | A kind of high-strength aluminum alloy and its application for forging truck hub | |
| CN107199443A (en) | A kind of autoform combination technological method of non-hardened and tempered steel connecting rod blank | |
| CN110153186A (en) | High alloy mould steel hollow bloom preparation method and high alloy mould steel hollow bloom and tubing and annular cutter | |
| CN114055092A (en) | Method for manufacturing air-hole ultrahigh-pressure pipe fitting by high-nickel alloy structural steel | |
| CN110125408B (en) | Method for preparing high alloy tool and die steel hollow pipe blank | |
| CN203791594U (en) | Metal continuous-casting forming equipment | |
| CN108890222A (en) | Rear axle case molding equipment, method and pipe fitting | |
| CN108480588A (en) | A kind of continuous casting billet production method of mould steel | |
| CN104999228A (en) | Steel casting surface quality processing technology | |
| CN113020313A (en) | Ledeburite die steel seamless steel tube and preparation method thereof | |
| CN112517817A (en) | Free forging process of thin-wall special-shaped step barrel part | |
| JPS61144216A (en) | Manufacture of die for hot extrusion press of aluminum and aluminum alloy | |
| CN111283125A (en) | Process method for producing core rod by directly forging continuous casting billet | |
| CN104624989A (en) | Continuous casting formation machining device and method used for metal | |
| CN203526497U (en) | Continuous cast shaping processing device for metal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |