CN109487177A - Straightening plate with high-strength wear-resistant alloy steel - Google Patents
Straightening plate with high-strength wear-resistant alloy steel Download PDFInfo
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- CN109487177A CN109487177A CN201811406990.3A CN201811406990A CN109487177A CN 109487177 A CN109487177 A CN 109487177A CN 201811406990 A CN201811406990 A CN 201811406990A CN 109487177 A CN109487177 A CN 109487177A
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- straightening plate
- tooth
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- 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
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B43/00—Cooling beds, whether stationary or moving; Means specially associated with cooling beds, e.g. for braking work or for transferring it to or from the bed
-
- 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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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- 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
- C21D1/28—Normalising
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- 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
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- 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
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- 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
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- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- 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
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- 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
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- 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
- C22C38/40—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
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- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The embodiment of the present invention discloses a kind of straightening plate with high-strength wear-resistant alloy steel, including straightening plate ontology, setting aligning tooth on the straightening plate ontology, the aligning tooth includes the first aligning tooth made of high-strength wear-resistant alloy steel, wherein, detachable composite joint is used between the first aligning tooth and the straightening plate ontology；In this way, by the way that elder generation on straightening plate ontology to be changed to the material for the first aligning tooth that steel contact after hot rolling by traditional cast iron, intensity is higher, the better steel alloy of wearability, it improves service life, make simultaneously using detachable composite joint between the first aligning tooth and straight panel ontology, to facilitate the replacement of staff.
Description
Technical field
The present invention relates to a kind of steel straightening plates, more particularly to the straightening plate with high-strength wear-resistant alloy steel.
Background technique
Cooling table strengthening plate is mainly used for steel (mainly screw-thread steel, round steel, steel pipe etc.) after hot rolling, enterprising in cold bed
The work top of capable online slow natural cooling.Cooling table strengthening plate is one of essential ancillary equipment in cooling bed device,
Steel after capable of making hot rolling avoid the problem that generating steel bending or irregular deformation occur in process air cooler.In general,
Steel temperature after hot rolling is 1000 DEG C or so, by cooling table strengthening plate and cold bed it is air-cooled after, the temperature of steel can be down to 300 DEG C
Left and right.Meanwhile steel all can generate abrasion to straightening plate all the time.Therefore, cooling table strengthening plate requires good resistance to height
Warm nature and excellent wearability.
It is domestic at present mainly to produce straightening plate by the way of casting, and be monoblock cast part.Material is generally cast iron,
It mainly include the various material casting such as gray cast iron, spheroidal graphite cast-iron, vermicular cast iron, heat-resisting cast iron and high-strength cast iron.Using it is more,
Using the material that wider straightening plate uses for QT400-10 (spheroidal graphite cast-iron), general service life is only reached 6-8 months and is just needed more
It changes or is reused after reparation is sanded using 304 welding rod built-up welding.Since by the reinforcing bar after hot rolling, the temperature at straightening plate is very
Height, reinforcing bar are in hot, if straightening plate tooth pitch is smaller, random steel are easy to produce at aligning, influences rhythm of production, the flank of tooth is wedge angle
Type, during cold bed stepping, it is easy to which the mass defects such as scratch are generated to hot rebar surface.
From the point of view of material, traditional straightening plate service life is short, and general longest is about just to need to change or repair for 8 months；From
It in structure, is not easy to replace, is also unfavorable for stablizing consumer products quality.This will lead to downstream user (steel production enterprise
Industry) it is forced to stop production, the use cost of user is virtually increased, rhythm of production and product surface quality are influenced.
Summary of the invention
In order to solve the above technical problems, the embodiment of the present invention provides a kind of straightening plate with high-strength wear-resistant alloy steel,
It can be by will first be changed with the material for the first aligning tooth that steel contact after hot rolling by traditional cast iron on straightening plate ontology
For intensity is higher, the better steel alloy of wearability, improve service life, while to adopt between the first aligning tooth and straight panel ontology
With detachable composite joint, to facilitate the replacement of staff.
In order to achieve the above object, the technical solution of the embodiment of the present invention is achieved in that
The embodiment of the present invention provides a kind of straightening plate with high-strength wear-resistant alloy steel, including straightening plate ontology, described
Setting aligning tooth on straightening plate ontology, the aligning tooth include the first aligning tooth made of high-strength wear-resistant alloy steel, wherein
Detachable composite joint is used between the first aligning tooth and the straightening plate ontology.
In the above-described embodiments, the aligning tooth further includes the second aligning tooth, wherein the aligning tooth of the second aligning tooth
Two surface chamfer of face.
In the above-described embodiments, made of high-strength wear-resistant alloy steel it is described first aligning tooth chemical component group and its
Mass percentage content is as follows: C:0.8-1.2%, Si:0.5-1.2%, Mn:0.8-3.0%, Cr:9.0-21.0%, Mo:
0.5-4.0%, Ni:0.8-3.0%, S:0-0.06%, P:0-0.06%, remaining is Fe and other inevitable impurity.
In the above-described embodiments, the hardness HRC=50-55 of the first aligning tooth.
In the above-described embodiments, the processing technology of the first aligning tooth includes casting, wherein the tapping when casting
Coolant-temperature gage is 1500 DEG C, and cast temperature is 1420-1450 DEG C.
In the above-described embodiments, the processing technology of the first aligning tooth includes normalizing process, wherein the normalizing process
Described in first aligning tooth enter heat-treatment furnace into furnace temperature less than 250 DEG C, into after the heat-treatment furnace, the heat treatment
To be warming up to 600 DEG C less than 70 DEG C per hour in furnace, and 1 hour is kept the temperature, the heat-treatment furnace is subsequently warming up to 920 DEG C,
And 1.5 hours are kept the temperature again, finally the first aligning tooth is come out of the stove Quench of drying.
In the above-described embodiments, the processing technology of the first aligning tooth includes tempering process, wherein the tempering process
Described in the first aligning tooth be warming up to 300-320 DEG C in the heat treatment furnace, then keep the temperature come out of the stove within 3 hours it is air-cooled, after tempering
It is described first aligning tooth hardness be HRC=50~55.
In the above-described embodiments, the chemical component group and its mass percentage content of the straightening plate ontology are as follows: C:
0.4-0.5%, Si:0.5-0.8%, Mn:0.8-1.2%, Cr:1.1-1.6%, Re:0.05-0.1%, Ni:1.0-1.5%,
S:0-0.06%, P:0-0.06%, remaining is Fe and other inevitable impurity.
In the above-described embodiments, the processing technology of the straightening plate ontology includes casting, wherein the tapping in the casting
Coolant-temperature gage is 1550 DEG C, and cast temperature is 1500-1530 DEG C, after the completion of the casting, heat preservation 4 hours or more outlets.
In the above-described embodiments, the processing technology of the straightening plate ontology includes tempering heat treatment, wherein the tempering heat
Straightening plate ontology described in processing enter heat-treatment furnace into furnace temperature be room temperature, into after the heat-treatment furnace, it is described heat at
Furnace temperature in reason furnace is warming up to 300 DEG C, keeps the temperature 4-5 hours, finally comes out of the stove air-cooled, the straightening plate sheet after the tempering heat treatment
Body hardness HRC≤30.
The embodiment of the invention provides a kind of straightening plate with high-strength wear-resistant alloy steel, including straightening plate ontology, institutes
Setting aligning tooth on straightening plate ontology is stated, the aligning tooth includes the first aligning tooth made of high-strength wear-resistant alloy steel,
In, detachable composite joint is used between the first aligning tooth and the straightening plate ontology；In this way, making described first
Tooth and the straightening plate ontology is aligned to weld, and by will be used on the straightening plate ontology with described in steel contact after hot rolling
First aligning tooth is changed to that intensity is higher, the better steel alloy of wearability by traditional cast iron, so that improves straightening plate uses the longevity
Life, while but also the straightening plate after prolonged use, when the first aligning tooth occur wearing and can not normal use
When, by by it is described first aligning tooth disassembled from the straightening plate ontology, then again weld or be threadedly coupled on
New the first aligning tooth, and then avoid in traditional maintenance mode, the direct waste replaced straightening plate and cause material.
Detailed description of the invention
Fig. 1 is the straightening plate structural schematic diagram provided in an embodiment of the present invention with high-strength wear-resistant alloy steel；
Fig. 2 is signal of the reinforcing bar provided in an embodiment of the present invention when the straightening plate with high-strength wear-resistant alloy steel is mobile
Figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
The embodiment of the invention provides a kind of straightening plates with high-strength wear-resistant alloy steel, as illustrated in fig. 1 and 2, including
Straightening plate ontology 1, setting aligning tooth on the straightening plate ontology 1, the aligning tooth includes being made of high-strength wear-resistant alloy steel
First aligning tooth 3, wherein it is described first aligning tooth 3 and the straightening plate ontology 1 between use detachable compound company
It connects.
Here, go out as shown in figs. 1 and 2, the aligning tooth there are nine groups, wherein the steel after hot rolling are in the aligning
The position disposed for the first time on plate ontology 1 is the first aligning tooth 3, and when in use, reinforcing bar is from the input skirtboard of cold bed
It falls at the first aligning tooth 3 of the straightening plate ontology 1, in terms of use scope, since the first aligning tooth 3 is in cold bed
Aligning is played to rolled piece in front end, and therefore, the first aligning tooth 3 is chronically in high temperature and the environment of abrasion, therefore described
Usually there is damaged problem in the first aligning tooth 3 on straightening plate ontology 1.
Therefore, usually there is damaged problem for the first aligning tooth 3, therefore by the first aligning tooth 3 by tradition
Cast iron materials, be changed to high-strength wear-resistant alloy steel, and make it is described first aligning tooth 3 and the straightening plate ontology 1 between use
Detachable composite joint, wherein the first aligning tooth 3 can be bolted with the straightening plate ontology 1, can also
To be attached by welding, there is flexibility in this way, facilitate later maintenance, reduces the shadow to user's rhythm of production
It rings.
Further, in embodiments of the present invention, as illustrated in fig. 1 and 2, the aligning tooth further includes the second aligning tooth 2,
In, two surface chamfer of the aligning flank of tooth of the second aligning tooth 2.
Here, the aligning flank of tooth of the aligning tooth is changed to two surface chamfers, avoids cold bed during stepping, the flank of tooth is to hot
The scuffing of rebar surface.
Further, in embodiments of the present invention, the change of the first aligning tooth made of high-strength wear-resistant alloy steel
It studies grouping and its mass percentage content is as follows: C:0.8-1.2%, Si:0.5-1.2%, Mn:0.8-3.0%, Cr:9.0-
21.0%, Mo:0.5-4.0%, Ni:0.8-3.0%, S:0-0.06%, P:0-0.06%, remaining is Fe and other inevitable
Impurity.
The hardness HRC=50-55 of the first aligning tooth.
Here, the straightening plate first is aligned and is chronically at 1000 DEG C of operating temperature or so at tooth, should have good resistance to
It is hot, and guarantee is indeformable at high temperature, while also to have excellent wearability.In the ingredient design of the embodiment of the present invention,
Cr, Mo and Ni alloy is added, wherein the additional amount of Cr is larger, can effectively improve the hardness and wearability of steel, the Mo of addition in this way
With Ni alloy, good plasticity and toughness are kept again while improving its thermostrength, service life is the 5 of spheroidal graphite cast-iron
Times.
Further, in embodiments of the present invention, the processing technology of the first aligning tooth includes casting, wherein described
The liquid steel temperature that goes out when casting is 1500 DEG C, and cast temperature is 1420-1450 DEG C.
The processing technology of the first aligning tooth includes normalizing process, wherein the first aligning described in the normalizing process
Tooth enter heat-treatment furnace into furnace temperature less than 250 DEG C, into after the heat-treatment furnace, with small per hour in the heat-treatment furnace
It is warming up to 600 DEG C in 70 DEG C, and keeps the temperature 1 hour, the heat-treatment furnace is subsequently warming up to 920 DEG C, and it is small to keep the temperature 1.5 again
When, finally the first aligning tooth is come out of the stove Quench of drying.
The processing technology of the first aligning tooth includes tempering process, wherein the first aligning described in the tempering process
Tooth is warming up to 300-320 DEG C in the heat treatment furnace, and then heat preservation is come out of the stove air-cooled for 3 hours, first aligning after tempering
Tooth hardness is HRC=50~55.
Here, further, in embodiments of the present invention, the chemical component group and its quality percentage of the straightening plate ontology
It is as follows than content: C:0.4-0.5%, Si:0.5-0.8%, Mn:0.8-1.2%, Cr:1.1-1.6%, Re:0.05-0.1%,
Ni:1.0-1.5%, S:0-0.06%, P:0-0.06%, remaining is Fe and other inevitable impurity.
Here, the straightening plate ontology requires higher hardness, and should also have good toughness.Therefore, at
Set up separately in meter, is important to that Cr and Mo alloy is added, Cr can significantly improve hardness and wearability, and Mo improves harden ability and heat resistance
Can, enough intensity and creep resisting ability (being deformed at high temperature by stress for a long time, claim creep) are kept at high temperature.
Further, in embodiments of the present invention, the processing technology of the straightening plate ontology includes casting, wherein described
The liquid steel temperature that goes out in casting is 1550 DEG C, and cast temperature is 1500-1530 DEG C, after the completion of the casting, heat preservation 4 hours or more
Outlet.
The processing technology of the straightening plate ontology includes tempering heat treatment, wherein is aligned described in the tempering heat treatment
Plate ontology enter heat-treatment furnace into furnace temperature be room temperature, furnace temperature liter into after the heat-treatment furnace, in the heat-treatment furnace
Temperature keeps the temperature 4-5 hours, finally comes out of the stove air-cooled to 300 DEG C, straightening plate ontology hardness HRC≤30 after the tempering heat treatment.
Here, further, in embodiments of the present invention, the manufacturing process of the straightening plate is as follows:
1, unit in-site installation and operation service condition is used in combination, straightening plate drawing CAD is inputted into computer first, according to
Straightening plate drawing determine the straightening plate ontology (wherein, the straightening plate ontology include the aligning tooth, it should be noted that
The straightening plate ontology is integrally formed and is made in addition to the first aligning tooth on the aligning tooth, rest part) size, structure
Shape makes bubbles model using desk-top publishing setting-out, using vacuum negative pressure cast technique.
2, it is determined at the first aligning tooth on the straightening plate and uses high strength heat resistant Wear-resistant alloy steel material, with a thickness of
16mm, in desk-top publishing setting-out, it is necessary to size positions setting-out at the first aligning tooth is accurate, so as to later process assembling
Welding.
3, the straightening plate ontology is made into bubbles model, each position using each position smallclothes that discharge after desk-top publishing setting-out
Smallclothes bubbles model compares drawing geomery and carries out assembled formation, forming model producer comparative diagram paper size close inspection again
Qualified Batch assemblage again becomes finished product model.
4, the straightening plate bulk foam is 18 mesh.
5, high-strength wear-resistant alloy board size drawing at the first aligning tooth after desk-top publishing setting-out is opened,
Punching block is made, using hot investment casting.
6, straightening plate bulk foam model described in batch finished product carries out every review by quality inspection portion and examines size, and it is qualified to examine
Storage.
7, the straightening plate bulk foam model swabbing: coating uses zirconium English powder, high-quality, high temperature resistant.Bubbles model
Upper swabbing requirement: twice of coating of brush, first pass coating answers the ratio of zirconium Ying Fenyu water to prepare by 0.9:1, stirs dilute point, unsuitable
It is dense, each surface of bubbles model appearance is all brushed, upper brush first pass coating completion after must not thering is leakage brush, inspection leakage to study for a second time courses one has flunked again
Into in drying chamber, it is necessary to which drying can go up second time coating of brush, and second time coating should be more slightly wider than first pass coating, by zirconium English
The ratio of powder and water is prepared by 1:1, and same second time coating also should all brush on each surface of bubbles model appearance, must not there is leakage
Brush checks and enters back into drying chamber drying after leakage is studied for a second time courses one has flunked again.
8, by the straightening plate bulk foam model protecting box moulding of drying: every straightening plate body foam model is poured using 1
Cup, the sprue sectional dimension for connecting sprue cup is 55mmX55mm, and the cross gate sectional dimension for connecting sprue is 45mmX
45mm, it is 45mmX 45mm that connect workpiece, which be ingate sectional dimension, and length is determined in protecting box.Protecting box is straightening plate main body
Bubbles model is erect, and the first aligning increment erects protecting box upward, and every two short ingates should be connect with straightening plate outside, then with
Cross gate, sprue connection, then arrive top again and carry out sprue cup.Note that connecting at short ingate and outside side cross gate two
It should allow two when connecing partiallyAt hole.
9, the straightening plate ontology produces material chemical analysis are as follows:
10, it is required to carry out ingredient, blow-on blanking melting according to chemical analysis, and does the chemical examination of stokehold spectrometer analysis, until
Material chemical examination is qualified.
11, it casts: going out 1550 DEG C of liquid steel temperature, 1500-1530 DEG C of cast temperature.
12, the outlet time is completed in casting: heat preservation 4 hours or more outlets, the longer the better for soaking time (pays attention to outlet necessarily not
Can be early, with crack resistence).
13, reach the outlet time 4 hours or more outlets, the straightening plate ontology tooth tip for hanging out case is lain in ground upward
On face, it must not be pressurized or place with baroclining, to prevent from deforming.
14, it using plasma cut cast gate, runway, cuts off and the straightening plate ontology is lifted up into shot-blasting machine after sprue cup runway
In carry out ball blast sand removal, shakeout processing, every one machine time of ball blast be 18-20 minutes.
15, all sizes of the straightening plate ontology and angle are examined, each surface is sanded inside and outside all appearances after the assay was approved
Bright and clean, smooth, (including described first aligning tooth 2) strictly must conscientiously be sanded at the top of each tooth tip on the especially described aligning tooth
Bright and clean, smooth, zero defect, the straightening plate ontology other end 20mm scrape a mouthful home record both side surface must be sanded it is bright and clean, smooth, and
Every insertion is carried out using 18-19mm thick steel plate (feeler gauge plate) to examine.Activity is wanted (cannot flexibly to inject it is required that inserting and being inserted into position
Go that there are tight slightly phenomenons).
16, the shove charge of straightening plate ontology carries out tempering heat treatment.Tempering heat treatment technique: room temperature is warming up to 300 DEG C into furnace,
Heat preservation 4-5 hours, comes out of the stove air-cooled.
Straightening plate ontology hardness HRC≤30 (ensuring that hardness does not influence to finish) after tempering heat treatment.
17, the high-strength wear-resistant alloy steel first is aligned into tooth, is made of precision manufactureing technique.Accurate punching block system
Make, it is qualified that mold is examined, and manufactures wax-pattern, and the dimension control of wax-pattern model structure is qualified, manufactures formwork, bakes formwork.
18, the material chemical component of the first aligning tooth made of high-strength wear-resistant alloy steel are as follows:
19, it is required to carry out ingredient, blow-on blanking melting according to chemical analysis, and does the chemical examination of stokehold spectrometer analysis, until
Material chemical examination is qualified.
20, it casts: going out 1500 DEG C of liquid steel temperature, 1420-1450 DEG C of cast temperature.
21, casting is completed the heat preservation outlet time: 1 hour.Surface thickness sand is first removed after outlet, is removed formwork, is lain in ground
Face, it is natural air cooled.
22, using plasma cut cast gate, then will the first aligning tooth made of high strength heat resistant wear-resisting alloy steel
It is put into ball blast sand removal in shot-blasting machine, shakeout processing, every one machine time of ball blast is 18-20 minutes.
23, all sizes and flatness are examined, examines qualified all appearance surfaces that polishing is sanded again bright and clean smooth.
24, numerical control machining center carries out numerical control cutting by drawing size requirement and is machined to qualification on the first aligning tooth.
25, the first aligning number of teeth control, which completes the process, carries out heat treatment normalizing processing and tempering.
Heat treatment normalizing process: less than 250 DEG C Shi Jinlu of furnace temperature, heat preservation 1 is small when being warming up to 600 DEG C less than 70 DEG C per hour
When, 1.5 hours are kept the temperature when then heating to 920 DEG C, Quench of drying of coming out of the stove.
Tempering heat treatment technique: it is warming up to 300-320 DEG C, heat preservation is come out of the stove air-cooled for 3 hours.
The first aligning tooth hardness HRC=50-55 after tempering.
26, drawing requirement is compareed, the first aligning tooth and straightening plate ontology are subjected to assembly welding and fixed, welding uses
Sub- arc-welding, weld level weld seam requirement is smooth, bright and clean, beautiful, welding defect.
27, by aligning tooth tooth top dimensional form requirement described on straightening plate, using 12mm thick steel plate, numerical control machining center adds
The reversed tooth top tooth gauge of work tooth crest detects template, examines whole aligning tooth tooth top angle and size, until qualified.
28, whole straightening plate transports drilling machine finishing, and drilling pattern must be made by drawing size requirement before drilling processing,
To guarantee every aligning panel aperture, pitch-row, size and position consistency after processing.Every straightening plate tooth when ensuring to install using unit
To all integral straight line of tooth.(in addition, by drawing, on the outside of every straightening plate both sidesHole Ying CaiyongPole or
Round tube carries out correspondence and is punched through detection).
29, the whole aligning board finished product is rechecked again, and items reinspection is qualified, and the aligning board finished product outer surface is all painted
Processing, spray painting color are Dark grey.
30, packaging is packaged, it is necessary to assure aligning tooth tip places packing upward.
The above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
Limitation of the invention, protection scope of the present invention should be defined by the scope defined by the claims..For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change
It also should be regarded as protection scope of the present invention into retouching.
Claims (10)
1. having the straightening plate of high-strength wear-resistant alloy steel, which is characterized in that including straightening plate ontology (1), the straightening plate sheet
Comprising setting aligning tooth on body (1), the aligning tooth includes the first aligning tooth (3) made of high-strength wear-resistant alloy steel,
In, detachable composite joint is used between first aligning tooth (3) and the straightening plate ontology (1).
2. the straightening plate according to claim 1 with high-strength wear-resistant alloy steel, which is characterized in that the aligning tooth is also
Including the second aligning tooth (2), wherein two surface chamfer of the aligning flank of tooth of second aligning tooth (2).
3. the straightening plate according to claim 1 with high-strength wear-resistant alloy steel, which is characterized in that by high-strength abrasion-proof
The chemical component group and its mass percentage content of first aligning tooth (3) made of steel alloy are as follows: C:0.8-1.2%,
Si:0.5-1.2%, Mn:0.8-3.0%, Cr:9.0-21.0%, Mo:0.5-4.0%, Ni:0.8-3.0%, S:0-0.06%,
P:0-0.06%, remaining is Fe and other inevitable impurity.
4. the straightening plate according to claim 1 with high-strength wear-resistant alloy steel, which is characterized in that first aligning
The hardness HRC=50-55 of tooth (3).
5. the straightening plate according to claim 1 with high-strength wear-resistant alloy steel, which is characterized in that first aligning
The processing technology of tooth (3) includes casting, wherein the liquid steel temperature that the goes out when casting is 1500 DEG C, cast temperature 1420-
1450℃。
6. the straightening plate according to claim 1 with high-strength wear-resistant alloy steel, which is characterized in that first aligning
The processing technology of tooth (3) includes normalizing process, wherein the first aligning tooth (3) described in the normalizing process enters heat-treatment furnace
Into furnace temperature less than 250 DEG C, into after the heat-treatment furnace, to be warming up to per hour less than 70 DEG C in the heat-treatment furnace
600 DEG C, and 1 hour is kept the temperature, the heat-treatment furnace is subsequently warming up to 920 DEG C, and keep the temperature 1.5 hours again, it finally will be described
First aligning tooth (3) is come out of the stove Quench of drying.
7. the straightening plate according to claim 1 with high-strength wear-resistant alloy steel, which is characterized in that first aligning
The processing technology of tooth (3) includes tempering process, wherein the first aligning tooth (3) described in the tempering process is in the heat treatment furnace
It is warming up to 300-320 DEG C, then heat preservation is come out of the stove air-cooled for 3 hours, and the first aligning tooth (3) hardness after tempering is HRC
=50~55.
8. the straightening plate according to claim 1 with high-strength wear-resistant alloy steel, which is characterized in that the straightening plate sheet
The chemical component group and its mass percentage content of body (1) are as follows: C:0.4-0.5%, Si:0.5-0.8%, Mn:0.8-
1.2%, Cr:1.1-1.6%, Re:0.05-0.1%, Ni:1.0-1.5%, S:0-0.06%, P:0-0.06%, remaining is Fe
With other inevitable impurity.
9. the straightening plate according to claim 1 with high-strength wear-resistant alloy steel, which is characterized in that the straightening plate sheet
The processing technology of body (1) includes casting, wherein the liquid steel temperature that goes out in the casting is 1550 DEG C, cast temperature 1500-
1530 DEG C, after the completion of the casting, heat preservation 4 hours or more outlets.
10. the straightening plate according to claim 1 with high-strength wear-resistant alloy steel, which is characterized in that the straightening plate
The processing technology of ontology (1) includes tempering heat treatment, wherein the straightening plate ontology (1) enter heat-treatment furnace into furnace temperature
For room temperature, into after the heat-treatment furnace, the furnace temperature in the heat-treatment furnace is warming up to 300 DEG C, keeps the temperature 4-5 hours, finally goes out
Furnace is air-cooled, straightening plate ontology (1) hardness HRC≤30 after the tempering heat treatment.
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Cited By (1)
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