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Production method of a new type of alloy aluminum and hot-forging bottom-covered non-stick pan

A production method and alloy aluminum technology are applied to the structure of cooking utensils, special materials for cooking utensils, cooking utensils, etc., which can solve the problems of complex processing technology, poor bonding force, and easy generation of air bubbles, and achieve simple production technology and improved durability. Heat property, effect of improving adhesion

Inactive Publication Date: 2016-01-27
ZHEJIANG WANSHENG KITCHENWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As a household tableware, the induction cooker is widely welcomed because of its convenience, but since there are only three elements with magnetic permeability known in nature, iron, cobalt and nickel, obviously, cobalt and nickel are relatively rare elements on the earth Not to mention the high price, and it may have adverse effects on the human body, only iron is a large, cheap and harmless material, but the cast iron pot that has been used for thousands of years has a disadvantage, that is, it is easy to rust; alloy steel such as Because stainless steel contains a lot of chromium elements, it has been proved that it is harmful to health. Moreover, stainless steel has high strength and hardness, and it is difficult to draw, deform and polish. Therefore, aluminum alloys with large quantities, low prices and easy processing are widely used in the pot making industry. However, the general aluminum alloy is not magnetically conductive and cannot be heated by an induction cooker, so a non-austenitic stainless steel aluminum alloy pan with a negative film was invented.
[0003] The utility model patent with the notification number CN2544654Y discloses a composite pot bottom of an aluminum pot. The composite pot bottom adopts a cold extrusion method to composite a stainless steel plate on an all-aluminum pot body. It has the following disadvantages: 1. All-aluminum pots The body is volatile and damaged at high temperature; 2. Cold extrusion presses the stainless steel plate into the bottom of the pot, the bonding force is poor, and it is easy to fall off during use
The invention patent with the publication number CN102578899A discloses an electromagnetic cooker with a flower-shaped hot forging and pressing bottom plate and its production method. Hot forging and pressing compositely set the steel-coated bottom sheet in the groove, which has the following disadvantages: 1. The processing technology is complicated, the pass rate is low, and the cost is high; 2. Air bubbles are easily generated between the steel-coated bottom sheet and the bottom of the pot, and it is easy to fall off after use; 3. Steel-clad negative film and pot body have high requirements on the film

Method used

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  • Production method of a new type of alloy aluminum and hot-forging bottom-covered non-stick pan
  • Production method of a new type of alloy aluminum and hot-forging bottom-covered non-stick pan
  • Production method of a new type of alloy aluminum and hot-forging bottom-covered non-stick pan

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Effect test

Embodiment 1

[0027] 1) By weight Al86.127%, Si12.2%, Fe0.87%, Cu0.4%, Mn0.37%, Zn0.014%, Ni0.014%, Mg, Ti, Cr and unavoidable trace 0.005% element is smelted into new alloy aluminum;

[0028] 2) Die-cast the new alloy aluminum obtained in step 1 into a pot body, and perform precision processing to obtain an alloy aluminum pot body 1 with a flat outer bottom;

[0029] 3) Take a round or petal-shaped stainless steel negative 2 (material is stainless steel #430), and punch holes on it to obtain a stainless steel negative 2 with vertical flanging punching holes 201, wherein the thickness of the stainless steel negative 2 is 0.45mm , the punching diameter is 4.6mm, and the flanging height is 0.7mm, such as image 3 , 4 and 5 as shown;

[0030] 4) Take the alloy aluminum pot body 1 obtained in step 2) and heat it at 230°C for 35 seconds, then put the stainless steel bottom sheet 2 obtained in step 3) on the outer bottom of the alloy aluminum pot body 1, and then use a friction press Forge fo...

Embodiment 2

[0033] 1) According to the weight ratio of Al85%, Si13%, Fe1%, Cu0.564%, Mn0.4%, Zn0.015%, Ni0.013%, Mg, Ti, Cr and 0.008% of unavoidable trace elements are smelted into a new type Aluminium Alloy;

[0034] 2) Die-cast the new alloy aluminum obtained in step 1 into a pot body, and perform precision processing to obtain an alloy aluminum pot body 1 with a flat outer bottom;

[0035] 3) Take a round or petal-shaped stainless steel negative 2 (material is stainless steel #430), and punch holes on it to obtain a stainless steel negative 2 with a straight flange punching hole 201, wherein the thickness of the stainless steel negative 2 is 0.4mm , the punching diameter is 4.5mm, and the flanging height is 0.6mm;

[0036] 4) Take the alloy aluminum pot body 1 obtained in step 2) and heat it at 220°C for 40 seconds, then put the stainless steel bottom sheet 2 obtained in step 3) on the outer bottom of the alloy aluminum pot body 1, and then use a friction press Forge for 0.035s unde...

Embodiment 3

[0039] 1) By weight Al87%, Si11.5%, Fe0.82%, Cu0.3239%, Mn0.32%, Zn0.0136%, Ni0.0135%, Mg, Ti, Cr and unavoidable trace elements 0.009 % smelted into new alloy aluminum;

[0040] 2) Die-cast the new alloy aluminum obtained in step 1 into a pot body, and perform precision processing to obtain an alloy aluminum pot body 1 with a flat outer bottom;

[0041] 3) Take a round or petal-shaped stainless steel negative plate 2 (material is stainless steel #430), punch holes on it, and obtain a stainless steel negative plate 2 with straight flanging punching holes 201, wherein the thickness of the stainless steel negative plate 2 is 0.5mm , the punching diameter is 4.8mm, and the flanging height is 0.8mm;

[0042] 4) Take the alloy aluminum pot body 1 obtained in step 2) and heat it at 250°C for 30 seconds, then put the stainless steel bottom plate 2 obtained in step 3) on the outer bottom of the alloy aluminum pot body 1, and then use a friction press Forge for 0.025s under a pressur...

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Abstract

A method for producing a novel aluminum alloy hot-forged and hot-pressed bottom-covered non-stick pan belongs to the technical field of aluminum pans. The method comprises the following technological steps: 1) smelting novel aluminum alloy, 2) casting an aluminum alloy pan body (1), 3) punching a stainless steel bottom covering piece (2) provided with vertical flange punched holes, 4) conducting hot pressing on the aluminum alloy pan body (1) and the stainless steel bottom covering piece (2) and 5) conducting fine machining. Compared with the prior art, the method has the following advantages: the pan body (1) is made of the cast aluminum alloy, so that the strength is good and the deformation is not prone to occurring; hot pressing is conducted on the aluminum alloy pan bottom and the stainless steel bottom covering piece (2), the vertical flange on the stainless steel bottom covering piece (2) form a U-shaped barb after being embedded into the pan bottom and under the extrusion of the pan bottom, and therefore, the adhesion force and the heat resistance of the stainless steel bottom covering piece (2) are improved and the stainless steel bottom covering piece (2) is not prone to dropping in the use process; the pan bottom is of a plane structure, shape matching between the pan bottom and the stainless steel bottom covering piece (2) is not needed in the machining process, stainless steel bottom covering pieces (2) with various patterns can be used, and therefore, the production technology is simple, the machining cost is low and the applicability is high.

Description

technical field [0001] The invention belongs to the technical field of aluminum pans, and in particular relates to a production method of a novel alloy aluminum and hot-forged bottom-coated non-stick pan. Background technique [0002] As a household tableware, the induction cooker is widely welcomed because of its convenience, but since there are only three elements with magnetic permeability known in nature, iron, cobalt and nickel, obviously, cobalt and nickel are relatively rare elements on the earth Not to mention the high price, and it may have adverse effects on the human body, only iron is a large, cheap and harmless material, but the cast iron pot that has been used for thousands of years has a disadvantage, that is, it is easy to rust; alloy steel such as Because stainless steel contains a lot of chromium elements, it has been proved that it is harmful to health. Moreover, stainless steel has high strength and hardness, and it is difficult to draw, deform and polish...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A47J27/00A47J36/02
CPCA47J27/002A47J36/02A47J36/025
Inventor 黄学良
Owner ZHEJIANG WANSHENG KITCHENWARE