CN100556564C - The manufacture method of composite strip steel for wood blade - Google Patents
The manufacture method of composite strip steel for wood blade Download PDFInfo
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- CN100556564C CN100556564C CNB2007100445151A CN200710044515A CN100556564C CN 100556564 C CN100556564 C CN 100556564C CN B2007100445151 A CNB2007100445151 A CN B2007100445151A CN 200710044515 A CN200710044515 A CN 200710044515A CN 100556564 C CN100556564 C CN 100556564C
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Abstract
A kind of manufacture method of composite strip steel for wood blade, be as steel core with cutting edge steel, with the body steel as watering steel, adopt the manufacturing of casting composite methods, comprise mainly that steel core is prepared, the finishing of cast compound steel ingot, compound steel ingot, rolling-cogging, to cuing open into two layers of composite steel billet, being rolled into step such as band steel.The manufacturing approach craft of composite strip steel for wood blade of the present invention is simple, processing cost is low, lumber recovery is high, bonding good, iron and steel is clearly demarcated, is particularly suitable for needing to pay in short-term the production in enormous quantities of foreign trade order blade.
Description
Technical field
The present invention relates to a kind of manufacture method of clad steel, relate in particular to a kind of manufacture method of composite strip steel for wood blade.
Background technology
Clad steel is a kind of composite, belongs to metal and metal composite scope, is mainly used in to make all kinds of cutters.At present, the method for producing clad steel both at home and abroad mainly adopts the compound and compound two kinds of technologies of hot rolling of blast, and its characteristics are respectively:
1, blast is compound: combined strength bination is better, but the cost costliness, need carry out in special mountain area, and lumber recovery is low, also need carry out multiple tracks hot-working, cold working.Be mainly used in national major project engineering, as space flight, military project etc.In the general product for civilian use and industrial products, do not have advantage on the price, and the compound length of material that explodes is limited, using has limitation.
2, hot rolling is compound: technology is simple relatively.But the compression ratio of two kinds of material hot rollings is very little, and its product only is applicable to the mechanical bit of emery wheel excision forming, can not make other parts in punching press, and compound two layers are ftractureed easily.In addition, hot rolling is compound to acquire a certain degree of difficulty to some special steel (as high-speed steel) and the compound of ordinary steel, and bonding is not very desirable, and qualification rate is lower.
3, existing wood blade adopts the processing technology of traditional " forge, rolling ", and labour intensity is big, and production efficiency is low, and lumber recovery is lower, and bonding quality is undesirable.Along with the progress in epoch, the large-scale production of this production technology incompatibility becomes the bottleneck that restricts the wood blade production development, progressively eliminates.
Summary of the invention
Purpose of the present invention is to solve the problems referred to above that prior art exists, and a kind of manufacture method of composite strip steel for wood blade of adopting new technology is provided.
The object of the present invention is achieved like this: a kind of manufacture method of composite strip steel for wood blade, as steel core, as watering steel, adopt the manufacturing of casting composite methods with cutting edge steel with the body steel, and concrete steps mainly comprise:
The preparation of A, steel core
Selected cutting edge steel steel ingot is cut earlier end to end, cut into required size according to requirement again and form the steel core base substrate, then the steel core base substrate is carried out surface treatment, it is become be suitable for the steel core bonding with molten steel to cutting edge steel in the clad steel;
B, the compound steel ingot of casting
Be positioned in the special-purpose punching block after steel core is preheating to uniform temperature, adopt bottom casting to cast, the three layers of compound steel ingot that obtains forming or monolateral Central Composite steel ingot or Central Composite steel ingot by body steel clamping cutting edge steel with watering the steel molten steel;
The finishing of C, compound steel ingot
After the compound steel ingot demoulding, remove remaining burr, and finishing is carried out with the suspension emery wheel in defective position, surface;
D, rolling-cogging
Three layers of compound steel ingot or monolateral Central Composite steel ingot after the finishing are recognized the steel billet that becomes desired thickness to rolling-cogging; Central Composite steel ingot rolling-cogging after the finishing is become the steel billet of desired thickness;
E, to cuing open into two layers of composite steel billet
Step D gained steel billet is cut after annealing in process eliminates stress end to end, expose steel core, be slit into two layers of composite steel billet dissecing;
F, be rolled into the band steel;
Two layers of composite steel billet of step e gained are rolled into hot-strip by specification, carry out necessary subsequent treatment then, obtain the composite strip steel for wood blade product.
Described cutting edge steel is selected from a kind of in alloy tool steel or the high-speed tool steel.
Described body steel is selected from a kind of among the Q195-Q235.
Be provided with locating bar in the described special-purpose punching block, this locating bar adopts CO
2Protection weldering or argon arc welding are welded on the desired location in the punching block.
The preheat temperature of the steel core described in the step B is controlled at 200-400 ℃, and the temperature of watering the steel molten steel is controlled at 1550-1650 ℃.
Three layers of compound steel ingot described in the step B comprise two-layer body steel and one deck steel core, and two-layer body steel is clipped in the middle one deck steel core; Described monolateral Central Composite steel ingot comprises two-layer body steel and one deck clad steel, and two-layer body steel is clipped in the middle one deck clad steel, and an end of clad steel is a steel core, and the other end is the body steel; Described Central Composite steel ingot comprises two-layer body steel and one deck clad steel, and two-layer body steel is clipped in the middle one deck clad steel, and the centre of clad steel is a steel core, is the body steel all around.
Described in the step D to recognize to rolling-cogging be the composite steel billet after the finishing to be sent in the heating furnace by three layers of direction of erectting side by side to heat earlier, turn over after coming out of the stove to turn 90 degrees and send into milling train by three layers of horizontal side by side direction and be rolled cogging.
The manufacture method of composite strip steel for wood blade of the present invention is the compound and compound two kinds of methods of hot rolling with respect to the blast of prior art, have following advantage and characteristics:
1, technology is simple, and cost is low, can both produce with normal section steel hot-rolling mill, strip mill and big mill;
2, can break away from for a long time production technology by the artificial rolling woodworking plane edge clad steel of conventional method blacksmithing;
3, lumber recovery height can reach 85-90% from the ingot to the material; Band steel drift sheet lumber recovery can reach 100%, and certified products can reach 98%;
4, iron and steel is clearly demarcated, finds out cutting edge easily;
5, be particularly suitable for needing to pay in short-term the production in enormous quantities of foreign trade order blade.
Description of drawings
Fig. 1 is the structural representation of three layers of compound steel ingot among the present invention;
Fig. 2 is the structural representation of the monolateral Central Composite steel ingot among the present invention;
Fig. 3 is the structural representation of the Central Composite steel ingot among the present invention;
Fig. 4 is that three layers of compound steel ingot shown in Figure 1 are to cuing open into the structural representation of two layers of composite steel billet;
Fig. 5 is that monolateral Central Composite steel ingot shown in Figure 2 is to cuing open into the structural representation of two layers of composite steel billet;
Fig. 6 is that Central Composite steel ingot shown in Figure 3 is to cuing open into the structural representation of two layers of composite steel billet;
Fig. 7 cuts open the structural representation of two layers of composite steel billet of back formation for twice pair on Central Composite steel ingot shown in Figure 3.
The specific embodiment
The manufacture method of composite strip steel for wood blade of the present invention, be with cutting edge steel as steel core, as watering steel, adopt the manufacturing of casting composite methods with the body steel.Be that example briefly explains manufacture method of the present invention with the Q195-GCr15 composite strip steel below.
At first smelt 12 o'clock steel ingots as the GCr15 of cutting edge steel, cut head (cap mouth) tail (cast gate) of steel ingot with band saw, according to the thickness proportion of user to cutting edge steel in the clad steel, last vertical band sawing machine on average cuts into the 3-9 sheet again, formation steel core base substrate.Then the steel core base substrate is carried out milling, polishing with milling machine, thoroughly eliminate surface scale, expose the metal true qualities, keep clean.Carry out surface treatment with ball blast technology again, further remove surperficial filth, increase roughness, increase the contact-making surface of itself and molten steel, be formed with and be beneficial to the steel core bonding with molten steel.
According to the ratio of steel core in punching block, adopt CO in addition
2Protection weldering or argon arc welding are welded on desired location (is three layers of compound steel ingot or monolateral Central Composite steel ingot or the different tactic pattern of Central Composite steel ingot employing according to the steel ingot that will cast) in the punching block with locating bar; the assurance steel core can accurately be located in punching block, and can not be moved when casting.
Be positioned in the special-purpose punching block after the GCr15 steel core of handling well is preheating to 200-400 ℃, adopt bottom casting to cast (when molten steel rises to the cap mouth in punching block with Q195 molten steel (temperature is controlled at 1550-1650 ℃), note feeding, can not produce tangible shrinkage cavity), obtain as shown in Figure 1 three layers of compound steel ingot by two-layer body steel 11 clamping one deck cutting edge steels 12, or obtain as shown in Figure 2 monolateral Central Composite steel ingot (end of clad steel is a steel core 22, and the other end is a body steel 21) by two-layer body steel 21 clamping one deck clad steels; Or obtain as shown in Figure 3 Central Composite steel ingot (centre of clad steel is a steel core 32, is body steel 31) all around by two-layer body steel 31 clamping one deck clad steels.
After the compound steel ingot demoulding, remove the remaining burr on the cap mouth limit, and finishing is carried out with the suspension emery wheel in defective position, surface.Compound steel ingot after the finishing is recognized to rolling-cogging three layers of compound steel ingot and monolateral Central Composite steel ingot, promptly send in the heating furnace and heat by three layers of direction of erectting side by side, turn over after coming out of the stove to turn 90 degrees and send into mill milling by three layers of horizontal side by side direction to become thickness be 140mm, width is the steel billet of 210mm.Center clad steel ingot is not needed to recognize to rolling, and it is 300mm that available 750 reversible mill coggings become thickness, and width is the steel billet of 360mm.When rolling, rolling temperature is controlled at 1250 ℃; First and second road adopts flat rolling, and guarantees that under HTHP the contact-making surface of cutting edge steel and body steel forms effectively bonding.Rolling back steel billet requires straight, and tangible bending can not be arranged.
Rolling good compound steel base is carried out annealing in process, to eliminate stress and to improve tissue.Cut end to end with horizontal band resaw then, expose steel core, rule at steel billet two end centers then, with two end faces as to hatching line, last vertical band saw, correction center, be slit into two layers of composite steel billet (, also can be respectively undertaken twice pair and cut open) to dissecing by horizontal and vertical for the Central Composite steel ingot.Then two layers of composite steel billet are heated to 1150-1200 ℃, being rolled into thickness on strip mill is 3.4-3.5mm, and width is the hot-strip of 195mm.Under 720-740 ℃, carry out bright annealing again,, reduce hardness, be convenient to punching press to prevent skin decarburization.Flat through opening then, cutting to length, check, bundling warehouse-in promptly obtain composite strip steel for wood blade product of the present invention.
Fig. 4 for three layers of compound steel ingot among the present invention to cuing open into the structural representation of two layers of composite steel billet, this complex form is that the surface is compound entirely.
Fig. 5 for the monolateral Central Composite steel ingot among the present invention to cuing open into the structural representation of two layers of composite steel billet, this complex form is that surface local is compound.
Fig. 6 for the Central Composite steel ingot among the present invention to cuing open into the structural representation of two layers of composite steel billet, this complex form is that centre of surface is compound.
Fig. 7 is the structural representation that twice pair on Central Composite steel ingot among the present invention cuts open two layers of composite steel billet of back formation, and this complex form is that surface local is compound, is similar to structure shown in Figure 5.
Above-mentioned various forms of two layers of composite steel billet can be respectively applied for the wood blade of making different purposes.
Claims (3)
1, a kind of manufacture method of composite strip steel for wood blade is characterized in that: as steel core, as watering steel, adopt the manufacturing of casting composite methods with the body steel with cutting edge steel, concrete steps mainly comprise:
The preparation of A, steel core
Selected cutting edge steel steel ingot is cut earlier end to end, cut into required size according to requirement again and form the steel core base substrate, then the steel core base substrate is carried out surface treatment, it is become be suitable for the steel core bonding with molten steel to cutting edge steel in the clad steel;
B, the compound steel ingot of casting
Be positioned in the special-purpose punching block after steel core is preheating to uniform temperature, adopt bottom casting to cast, the three layers of compound steel ingot that obtains forming or monolateral Central Composite steel ingot or Central Composite steel ingot by body steel clamping cutting edge steel with watering the steel molten steel;
The finishing of C, compound steel ingot
After the compound steel ingot demoulding, remove remaining burr, and finishing is carried out with the suspension emery wheel in defective position, surface;
D, rolling-cogging
Three layers of compound steel ingot or monolateral Central Composite steel ingot after the finishing are recognized the steel billet that becomes desired thickness to rolling-cogging; Central Composite steel ingot rolling-cogging after the finishing is become the steel billet of desired thickness;
E, to cuing open into two layers of composite steel billet
Step D gained steel billet is cut after annealing in process eliminates stress end to end, expose steel core, be slit into two layers of composite steel billet dissecing;
F, be rolled into the band steel;
Two layers of composite steel billet of step e gained are rolled into hot-strip by specification, carry out necessary subsequent treatment then, obtain the composite strip steel for wood blade product.
2, the manufacture method of composite strip steel for wood blade as claimed in claim 1 is characterized in that: three layers of compound steel ingot described in the step B comprise two-layer body steel and one deck steel core, and two-layer body steel is clipped in the middle one deck steel core; Described monolateral Central Composite steel ingot comprises two-layer body steel and one deck clad steel, and two-layer body steel is clipped in the middle one deck clad steel, and an end of clad steel is a steel core, and the other end is the body steel; Described Central Composite steel ingot comprises two-layer body steel and one deck clad steel, and two-layer body steel is clipped in the middle one deck clad steel, and the centre of clad steel is a steel core, is the body steel all around.
3, the manufacture method of composite strip steel for wood blade as claimed in claim 1, it is characterized in that: described in the step D to recognize to rolling-cogging be the composite steel billet after the finishing to be sent in the heating furnace by three layers of direction of erectting side by side to heat earlier, turn over after coming out of the stove to turn 90 degrees and send into milling train by three layers of horizontal side by side direction and be rolled cogging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100445151A CN100556564C (en) | 2007-08-02 | 2007-08-02 | The manufacture method of composite strip steel for wood blade |
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| CNB2007100445151A CN100556564C (en) | 2007-08-02 | 2007-08-02 | The manufacture method of composite strip steel for wood blade |
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| CN101104178A CN101104178A (en) | 2008-01-16 |
| CN100556564C true CN100556564C (en) | 2009-11-04 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102513519A (en) * | 2011-12-26 | 2012-06-27 | 上海泛屹复合钢有限公司 | Method for making composite steel by composite steel ingot casting and single-heating rolling |
| CN104785757B (en) * | 2015-03-27 | 2016-11-30 | 辽宁科技大学 | A kind of multicore many bags of reduction water the method and device of composite casting large-scale steel ingot altogether |
| CN105127705A (en) * | 2015-09-21 | 2015-12-09 | 安庆创跃电器有限公司 | Trimming blade forging technology |
| CN107443020A (en) * | 2017-08-17 | 2017-12-08 | 万世泰金属工业（昆山）有限公司 | A kind of metal surface batch processing processing method |
| CN110340330B (en) * | 2018-04-08 | 2022-01-14 | 南京理工大学 | Preparation method of multi-scale precipitation heterogeneous layered structure aluminum alloy |
| CN110253000B (en) * | 2019-06-19 | 2021-06-29 | 南京理工大学 | Preparation method of multi-grain-scale multi-layer high-entropy alloy |
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Granted publication date: 20091104 Termination date: 20160802 |