CN1142176A - Method for altering the surface characteristics of metal - Google Patents
Method for altering the surface characteristics of metal Download PDFInfo
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- CN1142176A CN1142176A CN 94194858 CN94194858A CN1142176A CN 1142176 A CN1142176 A CN 1142176A CN 94194858 CN94194858 CN 94194858 CN 94194858 A CN94194858 A CN 94194858A CN 1142176 A CN1142176 A CN 1142176A
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- thin plate
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- hole mouth
- mold pressing
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Abstract
The invention relates to a mehtod for altering the surface(1)characteristics of metal(2). A perforated plate(3)overlays a layer of other metal(4)on the said surface(1), wherein the said perforated plate 3)is fixed on the said surface(1)by die stamping. The said perforated plate (3)is treated, so that each pore includes pore mouth(5)and end surface of pore mouth (7). The obtained plate(3)is overlaid on the surface(1). The said pore mouth(5)of pore(6)forms convex towards the said surface(1). The said plate(3)is inlaid in the said surface(1)by die stamping, at the same time the pore mouth(5)and end surface of pore mouth 7)return straight, therefore the said plate is reliably anchored on the said surface.
Description
The present invention relates to change the method for surface characteristics of metal.
The invention still further relates to the article made from metallic plate, the characteristic of this metallic plate improves according to the present invention.As one of application of the present invention, these article are used as cooking ware.
Aluminium is a kind of metal with many advantages.This metal is light, punching press and mold pressing easily, and be easy to heat conduction.In addition, it is relatively cheap.Because these character, aluminium are industrial, especially use is very extensive aspect the manufacturing cooking ware.Yet it has many defectives.At first, it is quite soft, and its surface is easy to scratch as a result.Aluminium often applies the anti-adhesive layer or the glaze layer of one deck such as polytetrafluoroethylene (PTFE) and so on when housework is used.However, because aluminium is very soft carrier, so it has limited the life-span of these coatings.In addition, aluminum products, particularly aluminium cooking ware are for example being cooked under the liberated heat effect of electric furnace or gas burner institute, have the trend of easy deformation.
In order to overcome these difficulties, people or can increase the thickness of metal perhaps for example adopt hot moulding method topped one deck stainless sheet steel on the aluminium wall.But, increased production cost in this case significantly, reduced thermal conductivity, thereby prolonged cooking time.
At last, the aluminium vessel can not adopt eddy-current heating, because this mode of heating need use the magnetic metal vessel as ferritic stainless steel and so on.
There are many methods can change the characteristic of metal surface economically.A kind of such method is to cover other metal graticule mesh of one deck in the metal surface, and this graticule mesh adopts mold pressing to fix.Graticule mesh can be any gauze of pros, rectangle, hexagon etc.Graticule mesh can also be the flat metal plate-like of perforate.
Under the situation of the flat thin plate of perforate, defective is come the fault of vertical grappling in the comfortable surfacing.This defective perhaps causes thin plate to tear in the long or short time.
The objective of the invention is to propose a kind of method and can overcome possible tearing, this method can be carried out reliable thin plate grappling on described surface.
For this reason, propose a kind of method that changes surface characteristics of metal, this method is other sheet metals that cover one deck perforate on described surface, adopts mold pressing that the thin plate of perforate is fixed on this surface.
-according to the present invention, the processing perforated plate is so that each hole has a Kong Zui and hole mouth end;
-the thin plate that will process like this covers on the described surface, and the protruding hole mouth of formation is towards described surface;
-be embedded on the described surface by the thin plate of mold pressing processing, with Kong Zui and the hole mouth end Hui Zhi that the surfacing extruding in these holes is made up, make thin plate reliable grappling on described surface.
Obtain like this by on the one hand by mold pressing, on the other hand the composite material surface of the two-layer different metal composition by reliable anchor point combination with one another.
The invention still further relates to goods, the cooking ware that particularly adopts this method to make.
Below with reference to embodying other features of the present invention in the explanation of being done as the limiting examples accompanying drawing:
-Fig. 1 is in the preferred embodiment of the present invention, the metallic plate before the mold pressing and the profile of the processing sheet of perforate;
-Fig. 2 is the profile of Fig. 1 integral body after the mold pressing;
-Fig. 3 is the cooking ware profile of the preferred embodiment for the present invention.
-Fig. 4 is the cooking ware profile of another kind of preferred implementation of the present invention.
First step of the inventive method is to process metal 4 thin plates 3 of perforate, so that each hole 6 has hole mouth 5 and hole mouth end 7.In a preferred embodiment of this invention, each hole mouth 5 constitutes angle A with the plane D of thin plate 3, and has the hole mouth end 7 vertical with thin plate 3 plane D.Following step is that the thin plate 3 of processing covers on metal 2 surfaces 1 like this, so that the projection that hole mouth 5 forms towards surface 1.Last step is to carry out mold pressing, then thin plate 3 is embedded on the surface 1, straight with the hole mouth 5 of surfacing in these holes 6 extruding combination and hole mouth end 7 times, make thin plate 3 on described surperficial 1, carry out reliable grappling 8.In a preferred embodiment of this invention, hole mouth end 7 is returning the hypotenuse that becomes the angle A that constitutes with thin plate 3 plane D vertical lines when straight, at this moment constitutes with the fluent material 2 on surface 1 to be swallow-tailed reliable grappling.The metal 2 on preferred soft relatively surface 1 is an aluminium.
But, metal 2 can also be the alloy of one or more metals in copper, tin, lead or these metals, or any other metal or alloy.
Like this, thin plate 3 can be that the magnetic stainless steel is made.
The thin plate 3 (Fig. 3) that is embedded in 9 ends of vessel gives container following technological merit:
1) hard at the bottom of the vessel, this makes vessel wear-resistant better,
2) improved the vessel bottom to resistivity by distortion that temperature causes; Therefore this bottom still keeps plane, with the heat transmission maintenance optimum state of culinary art heating plate,
3) owing to being magnetic steel, so vessel can adopt eddy-current heating,
4) because aluminium is good heat conductor, so the heat that the thin plate stainless steel is stored can evenly pass 11 diffusions at the bottom of the aluminium well,
5) because stainless sheet steel is discontinuous, so the heat diffusion by the vessel bottom might be adjusted to lower value, therefore, avoided rapid superheated food,
6) graticule mesh has only slight influence to production cost, and what constraint punching press does not have to aluminium ware.
Therefore, above-mentioned cooking ware has because of using all advantages that aluminium brought, and has simultaneously and uses the advantage that stainless sheet steel brought.
As not seeking the eddy-current heating possibility, thin plate can be non magnetic austenitic stainless steel (Class1 8/8), or any any other metal harder than aluminium.
On Fig. 4, express another kind of aluminum cooking ware 10, its end 12 within it the surface be the thin plate 3 of stainless steel or other hard relatively steel for example.
In this embodiment, for example polytetrafluoroethylene (PTFE) and so on is anti-stick closes the inner surface that coating 13 has covered the end 12, and thin plate 3.
Certainly, the embodiment that the invention is not restricted to describe can make many improvement to these, but not exceed scope of the present invention.
Like this, the present invention is applied to the other field except that producing cooking ware.In fact, the present invention can be applied to any technical field, can change certain metallic surface character by inlay other sheet metals on certain metal in these fields.
Claims (15)
1. change the method for metal (2) surface (1) characteristic, this method is to go up the perforated plate (3) that covers other metals of one deck (4) in described surface (1), and described perforated plate (3) is fixed on the described surface (1) by mold pressing, it is characterized in that:
-process described perforated plate (3), so that each hole (6) have hole mouth (5) and hole mouth end (7),
-described the thin plate (3) that will process like this covers on the described surface (1), and the described hole mouth (5) of described hole (6) forms the projection towards described surface (1);
-adopt mold pressing that described processing sheet (3) is embedded on the described surface (1), the hole mouth (5) and hole mouth end (7) Hui Zhi that cooperate with surface (1) material (2) mold pressing in hole (6) are anchored on the described surface described thin plate reliably.
2. method according to claim 1 is characterized in that during procedure of processing, processes described hole mouth (5), so that they and thin plate (3) plane D constitute angle A, its feature is that also they have the hole mouth A vertical with thin plate (3) plane D and hold.
3. method according to claim 2, it is characterized in that inlaying in the step in mold pressing, described hole mouth end (7) becomes on the limit of returning the angle A that constitutes with the described plane of thin plate (3) D vertical line when straight, and described material (2) formation that flows out with described surface (1) is swallow-tailed reliable grappling (8).
4. require the described method of arbitrary claim among the 1-3 according to aforesaid right, it is characterized in that using the metal harder to make thin plate (3) than described surface (1).
5. require the described method of arbitrary claim among the 1-4 according to aforesaid right, the relative soft metal (2) that it is characterized in that described surface is the alloy of one or more metals in aluminium, copper, tin, lead or these metals.
6. require the described method of arbitrary claim among the 1-5 according to aforesaid right, it is characterized in that thin plate (3) is metal or the ferrous alloy with magnetic property.
7. method according to claim 6 is characterized in that thin plate (3) is a stainless steel.
8. require the described method of arbitrary claim among the 1-7 according to aforesaid right, it is characterized in that adopting the rolling mold pressing of carrying out.
9. require the described method of arbitrary claim among the 1-7 according to aforesaid right, it is characterized in that adopting calendering to carry out mold pressing.
10. adopting according to aforesaid right requires the described method of arbitrary claim among the 1-9 to be fixed on the article of soft relatively metal (2) plate (1) manufacturing on one of them face of harder metal (4) thin plate (3) of ratio plate (1) on the described plate (1).
11. according to the article of claim 10 by cooking ware (9,10) formation.
12. article according to claim 11 is characterized in that covering and splint fixation (3) on the outer surface of vessel (9) bottoms (11).
13. adopt the article manufacturing of punching press aluminium sheet and that can adopt the claim 12 of eddy-current heating, it is characterized in that thin plate (3) makes with ferritic stainless steel.
14. article according to claim 11 is characterized in that covering and splint fixation (3) on the inner surface of container (10) bottom (12).
15. article according to claim 14 is characterized in that covering thin plate (3) and described surface (1) with the anti-stick coating that closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94194858 CN1097502C (en) | 1994-01-21 | 1994-01-21 | Method for altering the surface characteristics of metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94194858 CN1097502C (en) | 1994-01-21 | 1994-01-21 | Method for altering the surface characteristics of metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1142176A true CN1142176A (en) | 1997-02-05 |
| CN1097502C CN1097502C (en) | 2003-01-01 |
Family
ID=5039585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94194858 Expired - Lifetime CN1097502C (en) | 1994-01-21 | 1994-01-21 | Method for altering the surface characteristics of metal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1097502C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104207626A (en) * | 2013-05-30 | 2014-12-17 | Seb公司 | Cooking vessel comprising a bottom plate provided with improved gripping means |
-
1994
- 1994-01-21 CN CN 94194858 patent/CN1097502C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104207626A (en) * | 2013-05-30 | 2014-12-17 | Seb公司 | Cooking vessel comprising a bottom plate provided with improved gripping means |
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| Publication number | Publication date |
|---|---|
| CN1097502C (en) | 2003-01-01 |
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Expiration termination date: 20140121 Granted publication date: 20030101 |
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| CX01 | Expiry of patent term |