CN108660357A - It is a kind of to be used to manufacture alloy material of hot-extrusion mold and preparation method thereof - Google Patents
It is a kind of to be used to manufacture alloy material of hot-extrusion mold and preparation method thereof Download PDFInfo
- Publication number
- CN108660357A CN108660357A CN201810477264.4A CN201810477264A CN108660357A CN 108660357 A CN108660357 A CN 108660357A CN 201810477264 A CN201810477264 A CN 201810477264A CN 108660357 A CN108660357 A CN 108660357A
- Authority
- CN
- China
- Prior art keywords
- alloy material
- preparation
- consutrode
- control system
- steel
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/18—Electroslag remelting
-
- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a kind of alloy material and preparation method thereof for manufacturing hot-extrusion mold, mold materials production technical field the described method comprises the following steps：(1) melting：The alloying element raw material prepared is positioned in induction furnace together, melting is carried out under 1500~1700 DEG C of high temperature, is then cast for level-one steel ingot；(2) electroslag remelting：Steel ingot described above is put in as consutrode in electroslag remelting device, double refining is carried out, forms two level steel ingot；(3) it forges：It by above-mentioned two level Heating Steel Ingots and forges, obtains steel forgings；(4) it is heat-treated：The steel forgings are put into annealing furnace, are annealed 6~8 hours at a temperature of 820~850 DEG C, the alloy material is made in subsequent furnace cooling.The present invention can not only improve the tissue of alloy material, moreover it is possible to which the content for reducing the non-metallic inclusion in alloy material improves its fatigue life.
Description
Technical field
The present invention relates to mold materials preparing technical field more particularly to a kind of alloy materials for manufacturing hot-extrusion mold
Material and preparation method thereof.
Background technology
Hot die steel, which often requires that, will have good forging, mechanical processing and heat treatment processing properties, but its is cold and hot
Fatigue behaviour is poor, toughness is relatively low so that mold, often because occurring to be cracked due to initial failure, especially uses water cooling in extrusion process
When but, the thermal fatigue life of mold is very low.The prior art would generally improve metal purity using various technologies or technique, improve
It crystallizes to improve its mechanical performance, and electroslag remelting is exactly one such process.Traditional electroslag remelting is generally all adopted
Declined with elevating mechanism uniform speed slow to keep electrode to be contacted with the slag bath in slag bath.Elevating mechanism one can be made using this kind of mode
It is straight to keep motion state, it works long hours down and not only wastes electric energy, be also easy to that elevating mechanism is made to break down, influence work effect
Rate.
Invention content
The present invention provides a kind of alloy material and its preparation for manufacturing hot-extrusion mold in view of the deficiencies of the prior art
Method can not only improve the tissue of alloy material, moreover it is possible to which it is tired to improve its for the content for reducing the non-metallic inclusion in alloy material
The labor service life.
In order to overcome the shortcomings of the prior art, the present invention provides a kind of alloy materials for manufacturing hot-extrusion mold
The preparation method of material, the described method comprises the following steps：
(1) melting：The alloying element raw material prepared is positioned in induction furnace together, under 1500~1700 DEG C of high temperature into
Then row melting is cast for level-one steel ingot；
(2) electroslag remelting：Above-mentioned level-one steel ingot is put in as consutrode in electroslag remelting device, secondary fine is carried out
Refining forms two level steel ingot；
(3) it forges：It by above-mentioned two level Heating Steel Ingots and forges, obtains steel forgings；
(4) it is heat-treated：The steel forgings are put into annealing furnace, are annealed 6~8 hours at a temperature of 820~850 DEG C, with
The alloy material is made in furnace cooling afterwards.
Further, in step (2), the electroslag remelting device includes crystallizer, is arranged inside the crystallizer
Slag bath, the metal bath being arranged immediately below the slag bath and the detection being arranged between the slag bath and metal bath dress
It sets；Described consutrode one end is connect with elevating mechanism, and the other end is inserted into the slag bath；The elevating mechanism and the detection
Device is connect with control system.
Further, the detection device detects the drop number that the metal bath is dropped in after the consutrode melts, when
When the drop number reaches goal-selling drop number dropping signal is sent to the control system.
Further, the detection device is infrared counter, whether has drop drop by lasting transmitting infrared detection
It falls in metal bath；If so, count is incremented for triggering infrared counter.
Further, the control system inputs pre-set count values by input module, when working as the infrared counter
When preceding count value is equal with the pre-set count values, the detection device sends the dropping signal to the control system.
Further, the control system controls the elevating mechanism when receiving the dropping signal and takes the consumable to
Electrode moves down preset distance.
The present invention also provides a kind of alloy material that preparation method as described above is prepared, the alloying element is former
Material include by mass percentage：C:0.3~0.5%, Si:1.5~2.0%, Mn:0.55~0.68%, S≤0.03%, Cr:
5.5~0.68%, Ni≤0.25%, V:0.85~1.0%, Mo:0.7~1.0%, P ＜ 0.02%, Fe surplus.
Further, the alloying element raw material includes by mass percentage：C:0.4%, Si:1.6%, Mn:0.65%,
S:0.01%, Cr:5.8%, Ni:0.2%, V:0.9%, Mo:0.9%, P:0.01%, Fe surplus.
Compared with prior art, the present invention also has the advantages that：
1. the present invention calculates the drop number triggering meter for being dropped in metal bath after consutrode melts by infrared counter
Number plus 1, when current count value is equal with pre-set count values, the infrared counter is sent to the control system declines letter
Number；The control system control consutrode declines pre-determined distance automatically, ensure that consutrode is all filled with slag bath from beginning to end
Tap is touched, and is also avoided that the elevating mechanism that consutrode is clamped continues to decline when consutrode and slag bath come into full contact with, waste
Energy.
2. having purity high using the alloy material that the present invention is prepared, fine uniform is organized, sulfur content is extremely low, is mingled with
The excellent performances such as object small and dispersed.
3. the alloy material of the present invention improves the elevated temperature strength of the alloy material by adding tri- kinds of alloying elements of N, Y, B
And hardness, its fatigue life can be effectively improved.
Description of the drawings
Fig. 1 is the structural schematic diagram of electroslag remelting device of the present invention.
1-consutrode；2-crystallizers；3-slag baths；4-metal baths；5-emitting heads；6-receive head；7-liftings
Mechanism；71-clamping limbs；72-lifting arms.
Specific implementation mode
The present invention is further illustrated With reference to embodiment.Wherein, attached drawing only for illustration,
What is indicated is only schematic diagram rather than pictorial diagram, should not be understood as the limitation to this patent；Reality in order to better illustrate the present invention
Example is applied, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To those skilled in the art
For, the omitting of some known structures and their instructions in the attached drawings are understandable.
The same or similar label correspond to the same or similar components in the attached drawing of the embodiment of the present invention；In retouching for the present invention
In stating, it is to be understood that if it is based on attached drawing to have the orientation or positional relationship of the instructions such as term "upper", "lower", "left", "right"
Shown in orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated
Device or component must have a particular orientation, with specific azimuth configuration and operation, therefore position relationship described in attached drawing
Term only for illustration, should not be understood as the limitation to this patent, for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
A kind of preparation method for manufacturing the alloy material of hot-extrusion mold the described method comprises the following steps：
(1) melting：The alloying element raw material prepared by mass percentage is positioned in induction furnace together, 1500~
Melting is carried out under 1700 DEG C of high temperature, is then cast for level-one steel ingot.
(2) electroslag remelting：Above-mentioned level-one steel ingot is put in as consutrode 1 in electroslag remelting device, secondary fine is carried out
Refining forms two level steel ingot.
(3) it forges：It by above-mentioned two level Heating Steel Ingots and forges, obtains steel forgings.Specifically, first, by described two
Grade Heating Steel Ingots are to 1300~1350 DEG C, preferably 1345 DEG C, then carry out rough forge, final forging temperature is 950~980 DEG C, excellent
It is selected as 970 DEG C；Then the two level steel ingot after rough forge is again heated to 1100~1150 DEG C, preferably 1140 DEG C, 940
It is forged again within the scope of~1080 DEG C, finally obtains the steel forgings.
(4) it is heat-treated：The steel forgings are put into annealing furnace, are annealed 6~8 hours at a temperature of 820~850 DEG C, with
Eliminate the stress generated in forging process；Then the alloy material is made in furnace cooling.
Further, in step (2), as shown in Figure 1, the electroslag remelting device includes crystallizer 2, is arranged in the knot
Slag bath 3 inside brilliant device 2, the metal bath 4 being arranged immediately below the slag bath 3, setting are molten in the slag bath 3 and the metal
Detection device between pond 4；Certain intervals are equipped between the slag bath 3 and the metal bath 4.The electroslag remelting device is also
Including elevating mechanism 7, the elevating mechanism 7 and the detection device are connect with control system, are controlled by control system.It is described
1 one end of consutrode is connect with elevating mechanism 7, and the other end is inserted into the slag bath 3；The consutrode 1 is inserted into the slag bath 3
Part melted under the high-temperature heating effect of the slag bath 3, formed after melting and drips and converge in the metal bath 4
In.Drop in the metal bath 4 is progressively solidified into the long rod-shaped two level steel under the cooling effect of the crystallizer 2
Ingot.The detection device detects the drop number that the metal bath 4 is dropped in after the consutrode 1 melts, when the drop number reaches
When dripping number to goal-selling dropping signal is sent to the control system (being not drawn into figure).Goal-selling drop number by with
The input module of the control system electrical connection pre-enters.The control system controls institute when receiving the dropping signal
It states elevating mechanism 7 to move down, the consutrode 1 is driven to move down preset distance.The depth of the preset distance and the slag bath 3
Spend it is related, the preset distance be the slag bath 3 depth 2/3~3/4, preferably 2/3, to ensure the consutrode 1
It is come into full contact with the slag being arranged in the slag bath 3.
The detection device is to be arranged between slag bath 3 and metal bath 4, and the detection device is preferably infrared counting
Device.The infrared counter is provided with several emitting heads 5 and several reception heads 6.Several described emitting heads 5 and several
A reception head 6 is evenly arranged on the inner wall of the crystallizer 2 between the slag bath 3 and the metal bath 4,
The emitting head 5 and the reception head 6 are arranged in a one-to-one correspondence.The emitting head 5 is sustainable emit to the reception head 6 it is infrared
Line, when there is drips, the infrared ray is blocked by the drop, and the reception head 6 can not be received from the emitting head 5
The infrared ray of transmitting has detected whether the drips in metal bath 4 with this.If so, triggering the infrared counting
Count is incremented for device.Several described reception heads 6 are arranged in parallel, when wherein there are one or more than one described reception head 6 connect simultaneously
When can not receive the signal that the corresponding emitting head 5 is sent out, count is incremented for the infrared counter.When the infrared counting
When the current count value of device is equal with pre-set count values, i.e., when current count value is equal with goal-selling drop number, the infrared meter
Number device sends dropping signal to the control system.Specifically, correlation circuit is set in the infrared counter, when in it
There is the drop of metal melting to pass through between emitting head 5 and reception head 6, when the infrared ray that emitting head 5 is sent out is blocked, correlation electricity
Road exports a pulse signal and triggers a counting circuit, and count is incremented for the infrared counter.For example, the infrared ray meter
Number device initial count is n, and when infrared ray is blocked once, the infrared counting device, which counts, increases by 1, i.e. current count value N=n+
1.When current count value N and pre-set count values or goal-selling drop number N` equal, the infrared counter is from trend institute
It states control system and sends dropping signal.The control system is described certainly by controlling clamping when receiving the dropping signal
The elevating mechanism 7 of power pole 1 declines preset distance to drive the consutrode 1 to move down preset distance automatically, ensures from power consumption
Pole 1 comes into full contact with from beginning to end with slag bath 3.The elevating mechanism 7 includes lifting arm 72 and is arranged on the lifting arm 72
Clamping limb 71, the clamping limb 71 move down movement for consutrode 1 to be clamped and the consutrode 1 is followed to act as.It is described
Lifting arm 72 and the clamping limb 71 are controlled by the control system.
The control system is also connect with warning device, when the infrared counter within a predetermined period of time, detection not
When to drop, alarm signal is sent to the control system, when the control system receives alarm signal, controls warning device
Automatically it gives a warning, reminds staff to check equipment or replace consutrode 1.
The present invention also provides a kind of alloy material being prepared with preparation method as described above, the alloying elements
Raw material includes by mass percentage：C:0.3~0.5%, Si:1.5~2.0%, Mn:0.55~0.68%, S≤0.03%,
Cr:5.5~0.68%, Ni≤0.25%, V:0.85~1.0%, Mo:0.7~1.0%, P ＜ 0.02%, Fe surplus.
Further, the alloying element raw material includes by mass percentage：C:0.4%, Si:1.6%, Mn:0.65%,
S:0.01%, Cr:5.8%, Ni:0.2%, V:0.9%, Mo:0.9%, P:0.01%, Fe surplus.
The present invention calculates the drop number flip-flop number that metal bath is dropped in after consutrode melts by infrared counter
Add 1, when current count value is equal with pre-set count values, the infrared counter is sent to the control system declines letter
Number；The control system control consutrode declines pre-determined distance automatically, ensure that consutrode is all filled with slag bath from beginning to end
Tap is touched, and is also avoided that the elevating mechanism that consutrode is clamped continues to decline when consutrode and slag bath come into full contact with, waste
Energy.Moreover, having purity high using the alloy material that the present invention is prepared, fine uniform is organized, sulfur content is extremely low, is mingled with
The excellent performances such as object small and dispersed.In addition, the alloy material of the present invention improves the conjunction by adding tri- kinds of alloying elements of N, Y, B
The elevated temperature strength and hardness of golden material, can effectively improve its fatigue life.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features；And these modification or
It replaces, the protection domain for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of preparation method for manufacturing the alloy material of hot-extrusion mold, it is characterised in that：The method includes following
Step：
(1) melting：The alloying element raw material prepared is positioned in induction furnace together, is melted under 1500~1700 DEG C of high temperature
Refining, is then cast for level-one steel ingot；
(2) electroslag remelting：Above-mentioned level-one steel ingot is put in as consutrode in electroslag remelting device, double refining, shape are carried out
At two level steel ingot；
(3) it forges：It by above-mentioned two level Heating Steel Ingots and forges, obtains steel forgings；
(4) it is heat-treated：The steel forgings are put into annealing furnace, are annealed 6~8 hours at a temperature of 820~850 DEG C, then with
But, the alloy material is made in furnace cooling.
2. preparation method according to claim 1, it is characterised in that：In step (2), the electroslag remelting device includes
Crystallizer, the metal bath being arranged immediately below the slag bath, is arranged in the slag slag bath being arranged inside the crystallizer
Detection device between pond and the metal bath；Described consutrode one end is connect with elevating mechanism, described in other end insertion
In slag bath；The elevating mechanism and the detection device are connect with control system.
3. preparation method according to claim 2, it is characterised in that：The detection device detects the consutrode melting
It is dropped in the drop number of the metal bath afterwards, declines when the drop number reaches to send to the control system when goal-selling drips number
Signal.
4. preparation method according to claim 3, it is characterised in that：The detection device is infrared counter, is passed through
Persistently whether transmitting infrared detection has drips in metal bath；If so, count is incremented for triggering infrared counter.
5. preparation method according to claim 4, it is characterised in that：The control system is inputted default by input module
Count value, when the current count value of the infrared counter is equal with the pre-set count values, the detection device is to institute
It states control system and sends the dropping signal.
6. according to claim 3 or 5 any one of them preparation methods, it is characterised in that：The control system is receiving
The elevating mechanism is controlled when stating dropping signal take the consutrode to move down preset distance.
7. a kind of alloy material being prepared such as claim 1~6 any one of them preparation method, it is characterised in that：Institute
Stating alloying element raw material includes by mass percentage：C:0.3~0.5%, Si:1.5~2.0%, Mn:0.55~0.68%, S
≤ 0.03%, Cr:5.5~0.68%, Ni≤0.25%, V:0.85~1.0%, Mo:More than 0.7~1.0%, P ＜ 0.02%, Fe
Amount.
8. alloy material according to claim 7, which is characterized in that the alloying element raw material wraps by mass percentage
It includes：C:0.4%, Si:1.6%, Mn:0.65%, S:0.01%, Cr:5.8%, Ni:0.2%, V:0.9%, Mo:0.9%, P:
0.01%, Fe surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810477264.4A CN108660357B (en) | 2018-05-18 | 2018-05-18 | Alloy material for manufacturing hot extrusion die and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810477264.4A CN108660357B (en) | 2018-05-18 | 2018-05-18 | Alloy material for manufacturing hot extrusion die and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108660357A true CN108660357A (en) | 2018-10-16 |
| CN108660357B CN108660357B (en) | 2020-03-31 |
Family
ID=63776630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810477264.4A Active CN108660357B (en) | 2018-05-18 | 2018-05-18 | Alloy material for manufacturing hot extrusion die and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108660357B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280394A (en) * | 2008-05-20 | 2008-10-08 | 上海大学 | High-silicon low-carbon high-heat resistance hot work die steel |
| CN104264060A (en) * | 2014-10-23 | 2015-01-07 | 山西百一机械设备制造有限公司 | High-impact toughness and high-thermal stability hot extrusion die steel and preparation method thereof |
-
2018
- 2018-05-18 CN CN201810477264.4A patent/CN108660357B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280394A (en) * | 2008-05-20 | 2008-10-08 | 上海大学 | High-silicon low-carbon high-heat resistance hot work die steel |
| CN104264060A (en) * | 2014-10-23 | 2015-01-07 | 山西百一机械设备制造有限公司 | High-impact toughness and high-thermal stability hot extrusion die steel and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108660357B (en) | 2020-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105543540B (en) | A kind of Cu-Cr-Zr alloy and preparation method thereof | |
| CN100519813C (en) | High-strength toughness cold working die steel and method of producing the same | |
| CN108060323B (en) | A kind of high-strength highly-conductive CuCrZrMg series copper alloy silk material and preparation method thereof | |
| CN106801146B (en) | A kind of method that electroslag remelting prepares nickel base superalloy hollow steel ingot | |
| CN105088094B (en) | A kind of manufacture method for controlling nitrogen austenitic stainless steel heavy forging | |
| CN102031399B (en) | Method for preparing Cu-Fe alloy under action of magnetic field | |
| CN109022896A (en) | Heat-resisting Cu-Fe-Y-Mg alloy material of a kind of high-strength highly-conductive with electromagnetic wave shielding performance and preparation method thereof | |
| CN103643080A (en) | High-strength, high-ductility and high-conductivity copper-nickel-silicon alloy bar and production method thereof | |
| CN110093532A (en) | A kind of Ni-based high chromium high temperature alloy of precipitation strength type and preparation method thereof | |
| CN106636861B (en) | The preparation technology of high-alloy hot work mould steel | |
| CN106048416B (en) | A kind of control method of precipitation hardenable martensitic stain less steel delta ferrite | |
| CN106011684A (en) | High-strength and high-toughness stainless steel material and preparation method thereof | |
| CN108220690A (en) | The forging material and forging method of a kind of exhasut valve stem peculiar to vessel | |
| CN112111672A (en) | Medical cobalt-based alloy guide needle material and preparation method thereof | |
| CN106244833B (en) | A kind of preparation method containing magnesium alloy | |
| CN106399751A (en) | Preparing method for high-strength and high-conductivity copper alloy | |
| CN109136584A (en) | A kind of method of stripping formula electroslag furnace and its application and control ledeburite carbide | |
| CN108660357A (en) | It is a kind of to be used to manufacture alloy material of hot-extrusion mold and preparation method thereof | |
| CN107740020A (en) | A kind of preparation method of titanium nickel tube material | |
| CN107868884A (en) | A kind of nickel aluminium titanium thermal spraying welding wire and its manufacturing process | |
| CN107746990A (en) | A kind of High-strength high-plasticity Ti Al Zr Mo V system's beta-titanium alloys and its Technology for Heating Processing | |
| CN104264082A (en) | Nitrogen-doped toughened metallic glass composite material and preparation method thereof | |
| CN107805733B (en) | A kind of polynary height leads beraloy and preparation method thereof | |
| CN107217163B (en) | A kind of TB13 titanium alloy smeltings and cogging forging method | |
| CN105583251B (en) | A kind of forging method of big specification Inconel690 alloy bar materials |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200228 Address after: 318000 Taizhou Zhejiang Jiaojiang Bay Longines 4 1 unit 701 room Applicant after: Chen Saifei Address before: 528000 Chancheng District, Foshan City, Guangdong Province, No. 11, No. 4, 7, 902. Applicant before: Cao Wei |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |