CN1053602C - Composite steel plate and its producing method - Google Patents
Composite steel plate and its producing method Download PDFInfo
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- CN1053602C CN1053602C CN97104620A CN97104620A CN1053602C CN 1053602 C CN1053602 C CN 1053602C CN 97104620 A CN97104620 A CN 97104620A CN 97104620 A CN97104620 A CN 97104620A CN 1053602 C CN1053602 C CN 1053602C
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- mother metal
- steel plate
- clad steel
- covering material
- flange part
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Abstract
The present invention discloses a composite steel plate structure and a making method thereof, which is especially designed for enhancing the strength and the surface treatment of a composite steel plate. The composite steel plate is composed of a parent material with a flange part and a covering material, wherein the flange part is penetrated onto the surface of the covering material, and the parent material and the covering material are connected through the flange part. The composite steel plate has the advantages of high strength, easy surface treatment, superior thermal insulation and sound insulation performance, low production cost, etc.
Description
The present invention relates to steel plate structure and manufacture method thereof, relate in particular to the clad steel plate technical field.
Engage different kinds of metals integrated and clad steel plate that make, as a kind of had both in conjunction with the good composite of metallic character, extensively apply to fields such as auto parts and components, household appliances, articles for daily use.The manufacture method of this clad steel plate, normally the method with hot rolling makes the dissimilar metals joint integrated.But the hot rolling method has its shortcoming: the easy oxidation of composition surface, in case generation oxidation, the bond strength of storeroom is just very poor, therefore, in order to prevent the oxidative phenomena of faying face, and seal welding around in advance will be on the composition surface, but it is very difficult to seal weldering at the end face of disparate metals, and specification requirement is very high.Disclose a kind of rolled metal composite plate as the flat 2-34289 file of Japan Patent JP, it is made up of flanged pin portion mother metal and covering material, and described flange part penetrates described covering material, by described flange part mother metal and covering material is coupled together.Its shortcoming: flange part will penetrate and cover in the material hole, generally needs hot rolling just can finish, and will produce above-mentioned oxidation, the various shortcomings of engaging force difference, and will be processed into such flange part on the mother metal and want multiple working procedure, causes processing technology complexity, cost to improve.In addition, in order to solve this difficult problem, developing a kind of technology of carrying out vacuum rolling in a vacuum., this vacuum rolling method also has its drawback: at first must need other purchase of equipment in order to make vacuum environment, this is a thing much less, and in addition, reach condition of high vacuum degree must take long to, so correspondingly production cost also just has been much improved.
Be to provide a kind of mother metal and cover material bond strength height, superior performance, production technology is simple, production cost is cheap simultaneously clad steel plate and manufacture method thereof based on the purpose of the invention described above.
Technical scheme of the present invention is such.This clad steel plate, its mother metal and covering material by flanged pin portion is formed, and it is characterized in that: hollow flange portion will be penetrated into and cover the material superficial expansion and be extended to the back-off shape, by it mother metal and covering material is coupled together.
The nitration case that above-mentioned mother metal surface has nitriding to handle; Be equipped with the sheet material of organic matter or inanimate matter between above-mentioned mother metal and the covering material.
The manufacture method of producing above-mentioned clad steel plate overlaps with process for stamping and makes on the mother metal of hollow flange portion then rolling forming under the normal temperature for covering material, is extended to the back-off shape mother metal and covering material are coupled together thereby hollow flange portion is penetrated cover the material surface and expand.
Above-mentioned manufacture method also can be will have the mother metal of flange part to carry out nitrogen treatment, is placed on cover material on the mother metal that nitrogen treatment crosses rollingly then, can make mother metal thus and cover material to be joined together the formation clad steel plate.Also can and cover the sheet material of inserting organic matter or inanimate matter between the material in the above-mentioned manufacture method, also can use bonding agent simultaneously at mother metal.
Description of drawings:
Fig. 1. example profile of clad steel plate of the present invention;
Fig. 2. another kind of example profile of the present invention;
Fig. 3. the third example profile of the present invention;
Fig. 4. the 4th kind of example profile of the present invention;
Fig. 5. the 5th kind of example profile of the present invention;
Fig. 6. mother metal example profile of the present invention;
Fig. 7. clad steel plate vertical view of the present invention;
Fig. 8. the another kind of vertical view of clad steel plate of the present invention;
Fig. 9. another vertical view of clad steel plate of the present invention;
Figure 10. mother metal nitrogen treatment apparatus structure schematic diagram of the present invention;
Figure 11. the rolling schematic diagram of clad steel plate of the present invention.
Below in conjunction with description of drawings embodiments of the invention are described further.
Shown in Fig. 1-11, clad steel plate 1 of the present invention by mother metal 2 be connected incorporate covering material 3 by mother metal and form, must have hollow flange portion for mother metal 2, and can be through nitrogen treatment, hollow flange portion 21 penetrates and covers material 3 surfaces and makes mother metal 2 thus and cover material 3 and engage integrated.As mother metal 2 with cover the material of material 3, everybody metal material known that generally uses when making clad steel plate all can use, but for mother metal, if use contain the easy steel of making elements such as nitride such as Cr, Mo, Al, Ti, V can be better.Be specifically as follows good materials such as stainless steel, nitrogenize steel Al-Cr, Mo steel.Clad steel plate 1 related to the present invention can not carry out nitrogen treatment to mother metal 2 yet, under this situation, uses soft metals such as Pb, Zn as covering material.In addition, even if mother metal 2 is not being carried out in the formation of nitrogen treatment, the material of mother metal 2 and covering material 3 is unrestricted fully, and big if the hardness ratio of mother metal 2 covers material 3, general metal material all can use.
In addition, clad steel plate related to the present invention as shown in Figure 2, can adopt the method for putting into the sheet material such as the sheet materials 5 such as cloth, paper or film of organic matter or inanimate matter between mother metal 2 and covering material 3.As being placed on mother metal 2 and covering organic matter between the material 3 or cloth, paper or the thin-film sheet 5 of inanimate matter can be such as glass fabric, graphite fiber cloth, graphite paper, chemical fabric, film of synthetic resin, ceramic papers etc.Owing between mother metal and covering material, put into paper, cloth, the film of organic matter or inanimate matter, just can produce a kind of being fit to such as in daily necessities fields such as auto parts such as bonnet diaphragm seal, air conditioner, thermal resistance, thermal insulation being required very high product, the clad steel plate of parts.In addition, the steel plate that utilizes the present invention to produce also can use in other field, as a lot of holes 22 being set and even using as noise reduction, acoustic material.In addition, by regulating mother metal and the thickness that covers material, just can obtain the thin clad steel plate of mother metal bed thickness cover layer, perhaps opposite, also can obtain the mother metal layer and approach, cover the clad steel plate of bed thickness etc., moreover, can also freely regulate mother metal layer and tectal thickness ratio, produce clad steel plate.
The clad steel plate that utilizes the present invention to produce, when mould is stamping forming, even if resemble the aluminium of easy generation fracture, unannealed material, owing to be the cause that is overlapped into composite plate with other material, formed in mould the time, just become the material of ten minutes high-quality.And the finished product of the two or more materials of original the sort of use, need above stamping procedure twice, and, only need a stamping procedure just passable for utilizing the present invention to make clad steel plate, can say that in production efficiency, there is great superiority the production cost aspect.And the welding of disparate metals in the past is very difficult, and now owing on mother metal, put the covering material that is rich in weldability, so weld just very easy.Sometimes, although have to use the very difficult material that sprays paint,, can produce the clad steel plate of high-quality because the covering material that sprays paint is to cover incorporate cause on the parent.For example, the monomer copper coin just can not carry out Laser Processing, and when it and iron plate is overlapping when becoming composite plate, Laser Processing just becomes possibility.In addition, gold-plated processing too, such as, the composite plate that constitutes by copper coin and iron plate, at the copper coating of iron plate side, can obtain a kind of thus is to have used iron plate, also have the outward appearance of copper coin, a clad steel plate of character in material.In a single day also have some materials, be difficult to carry out surface treatment, but make clad steel plate, just can be easy to carry out surface treatment with meltallizing with meltallizing.Just say, be difficult to carry out the surface-treated material, in case after making clad steel plate, just can become the surface treatment properties excellent material thus with monomer.
Other embodiment form of the clad steel plate 1 that the present invention is correlated with as shown in Figure 3, covering the two sides that material 3 is connected mother metal 2, has formed 3 layers of structure, perhaps 5 layers of structure as shown in Figure 4, and perhaps the structure more than 5 layers can adopt.In addition, as shown in Figure 5, also can adopt, also have at 3 layers of covering materials that are provided with on the same one side of mother metal 2 more than two-layer, in these Fig. 3 and even structure shown in Figure 5, can certainly adopt at mother metal 2 and cover sheet materials such as the cloth of putting into organic matter or inanimate matter between the material 3, paper, film.
Give one example below clad steel plate manufacture method related to the present invention is described.
At first, shown in the profile of Fig. 6, can be at will make mesopore flange part or hole on the mother metal with a kind of processing method, at this moment, flange part on the mother metal or Kongzui are good shown in the plane of Fig. 7, are designed to which kind of shape, but not specially are limited to this.And the shape of mother metal flange part, number and size all do not limit especially, can set arbitrarily, as long as between mother metal 2 and the covering material 3 enough bond strengths are arranged.Other pattern of mother metal hole shape, triangular file as shown in Figure 8 or four jiaos of files shown in Figure 9 etc.Fig. 7 just has flange part 21 on the one side, and Fig. 8, Fig. 9 then are that the two sides all has flange part.
Next is that the mother metal that flange part is arranged is carried out nitrogen treatment.Can adopt above-mentioned structure of mother metal not being carried out nitrogen treatment in addition.
As the method for nitrogen treatment, can adopt the method for always being familiar with, but preferably adopt following illustration method for everybody.
Figure 10 represents to be used for the device ideograph of nitridation treatment method.Arrow among the figure is represented Gas Flow direction, the 47th, vavuum pump.
At first, a container 42 is set in stove 41, is paved with Ca (CN) in the bottom of container
2Particle 43 is put processed material 44 on it, and then sprinkles Ca (CN)
2Particle.According to container size, treating capacity, repeatable operation after vibration container 42, so, Ca (CN)
2Just just fill in the narrow ditch or elongated hole on the mother metal.Then, put the dispersion plate of making of ceramic wool 45 more in the above, cover one again and have the small container that is called dispersing chamber 46.And, be 1 its mixed proportion of gaseous mixture of ammonia or nitrogen and ammonia and oxygen if with ammonia, nitrogen is 0.2～2, oxygen is 0.1～1, once introduces in the aforementioned dispersing chamber.So, reach the air-flow of dispersing chamber equably, flow out towards container 42 directions from the nozzle that is arranged on the dispersing chamber bottom.Because will pass through ceramic wool,, air-flow just can carry out nitrogen treatment so just can being diffused in the container equably.The condition of nitrogen treatment is as long as suitably set just passable according to processed material.But air pressure is 0.1～0.4MPa, and temperature is 430～500 ℃, and the processing time preferably is set in 7～50 hours the scope.The nitridation treatment method advantage of carrying out according to said method is: 1.Can complicated shape goods such as rill, deep hole be arranged uniform treatment; 2. those are thought that the stainless steel, the nickel-base alloy that are difficult to carry out the gas nitrogenize also can play a role; 3, the nitrogenize degree of depth is very dark; 4. nitride film is very hard; 5. product is easy to solidify.
Traditional nitridation treatment method is the nitrogen that utilizes ammonia to decompose out, and relative therewith, said method is: Ca (CN)
2Under extremely low partial pressure of oxygen, carry out thermal decomposition, just produce great nitrogen partial pressure thus, just form the nitration case of processed material by this nitrogen, by ammonia decompose the nitrogen that is produced replenish because of nitrogen treatment by Ca (CN)
2The nitrogen that loses.Just say, in the nitrogen treatment process of this method, Ca (CN)
2Repeating on one side to decompose and generate, Yi Bian carry out nitrogen treatment.
Therefore, in this nitridation treatment method, at Ca (CN)
2Have oscillation phenomenon when regulating processed material, just because by this vibration, Ca (CN)
2Just can spare and touch the processing material evenly and get on, so just can carry out uniform nitrogen treatment the product of complicated shape.
According to the method described above, after mother metal 2 is carried out nitrogen treatment, be placed on the mother metal rolling cover material.The hollow flange portion on mother metal 2 of so designing just penetrates and covers material 3 and expand to its surface, and as shown in figure 11, in view of the above, mother metal 2 and cover material 3 and just engage integratedly also just can be finished clad steel plate shown in Figure 1.
In addition, when rolling, mother metal 2 is owing to be the process nitrogen treatment, and its hardness has reached Hv900～1100, has covered material so the flange part 21 of mother metal just can be easy to penetrate.Mother metal 2 is not carried out this structure of nitrogen treatment if adopt, if use the covering material lower passable than mother metal hardness yet.In addition, adopting at mother metal when covering the cloth of putting into organic matter or inanimate matter between the material, paper, this method of film, before carrying out the rolling operation, much less also is cloth, paper, the film that can put into organic matter or inanimate matter between mother metal and covering material.
When being rolled processing, divide several steps to be rolled, reduce its thickness gradually, reach own needed thickness always.
As rolling method, use any methods such as hot rolling system that everybody knows, cold rolling all can.
Just as explained above, because the characteristics of this clad steel plate are: it is made up of the mother metal of flanged pin portion and the covering material that is connected on it, flange part penetrates and covers material and expand to its surface and make mother metal by this method effectively and cover material and couple together, so it has following effect:
Say that just the flange part of mother metal penetrates covering material surface and extends, both are combined closely by this method, the bond strength height, produced like this clad steel plate mother metal is very superior with the switching performance that covers material.
This kind clad steel plate also is applicable in fields such as auto parts and components, water heater, air conditioner adiabatic, the disconnected high product of heat request in addition, is applicable to yet and makes sound insulation, quieter material that the scope of application is wide.And, by regulating mother metal and the thickness that is capped material, just can produce the clad steel plate that mother metal is thick, the covering material is thin or the covering material is thick, mother metal is thin, not only can regulate the thickness of clad steel plate like this, can also regulate the thickness ratio of mother metal layer and covering material layer comfortablely.
Outside inferior, resemble the materials that rupture easily in the bight when the mould punching press such as aluminium, because it is to be combined into composite plate with other materials, also can become the material of mould molding function admirable, and according to the conventional method, those have used the finished product of two or more materials, need above stamping procedure twice, the clad steel plate that produces according to the present invention.Only need a stamping procedure just can finish, production technology is simple, so having superiority aspect the production efficiency cost.
Once more, to the disparate metals that is difficult to weld according to conventional method, owing to be that the covering material that very easily welds with other material is overlapped on the mother metal, so weld just as easy as rolling off a log.
In addition, even if use those to be difficult to carry out the material that surface lacquer is handled since be the good covering material of lacquer is connected on the mother metal integrated, so that can make good clad steel plate.
For example, the monomer copper coin just can carry out Laser Processing after just can not using Laser Processing and iron to be combined into compound copper coin.Plating is handled too in addition, as constituting clad steel plate by copper coin and iron plate, by to the copper facing of iron plate side surface, although in material, used iron, even if but can produce have copper coin outward appearance, character clad steel plate those be convenient to meltallizing and carry out the surface-treated material, in case made clad steel plate.So just can carry out surface treatment with meltallizing at an easy rate.
In other words, be difficult to carry out the surface-treated material, in case just become the superior material of surface treatment properties after doing into clad steel plate with monomer.Without vacuum rolling, mother metal is bonded together securely with covering material, so just can improve production efficiency and reduce cost again.
The mother metal that has flange part is carried out nitrogen treatment, make the mother metal of nitrogen treatment hard especially, the flange part of mother metal just can pass easily and cover material they are coupled together like this.
Claims (6)
1. clad steel plate, it is by mother metal of flanged pin portion and cover material and forms, and it is characterized in that: the flange part of hollow will be penetrated into to cover the material surface and expand and be extended to the back-off shape, by it mother metal and covering material is coupled together.
2. clad steel plate as claimed in claim 1 is characterized in that the nitration case that described mother metal surface has nitriding to handle.
3. clad steel plate as claimed in claim 1 is characterized in that described mother metal and covers the sheet material that is equipped with organic matter or inanimate matter between the material.
4. manufacture method of producing clad steel plate as claimed in claim 1, it is characterized in that overlapping to make on the mother metal of hollow flange portion and carrying out rolling forming under the normal temperature again with process for stamping with covering material, make hollow flange portion penetrate covering material surface and expand like this and be extended to the back-off shape, thereby mother metal and covering material are coupled together.
5. the manufacture method of clad steel plate as claimed in claim 4 is characterized in that rolling preceding first mother metal with flange part carries out nitrogen treatment under the described normal temperature.
6. the manufacture method of clad steel plate as claimed in claim 4 is characterized in that described covering material overlaps mother metal and can insert the sheet material of organic matter or inanimate matter between covering material and mother metal before, and can use bonding agent simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97104620A CN1053602C (en) | 1997-04-02 | 1997-04-02 | Composite steel plate and its producing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97104620A CN1053602C (en) | 1997-04-02 | 1997-04-02 | Composite steel plate and its producing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1163163A CN1163163A (en) | 1997-10-29 |
| CN1053602C true CN1053602C (en) | 2000-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97104620A Expired - Lifetime CN1053602C (en) | 1997-04-02 | 1997-04-02 | Composite steel plate and its producing method |
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| Country | Link |
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| CN (1) | CN1053602C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102200238B1 (en) * | 2019-12-11 | 2021-01-07 | 주식회사 포스코 | Pre-stressed steel sheet and method of manufacturing the same |
| CN111266421B (en) * | 2020-01-22 | 2022-04-12 | 银邦金属复合材料股份有限公司 | Aluminum steel composite material, preparation method thereof and power station air cooling equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0234289A (en) * | 1988-07-21 | 1990-02-05 | Nkk Corp | Manufacture of metal clad plate by rolling |
-
1997
- 1997-04-02 CN CN97104620A patent/CN1053602C/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0234289A (en) * | 1988-07-21 | 1990-02-05 | Nkk Corp | Manufacture of metal clad plate by rolling |
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| Publication number | Publication date |
|---|---|
| CN1163163A (en) | 1997-10-29 |
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Granted publication date: 20000621 |