WO2009149614A1 - Die-casting composite-bottom pot and process for manufacturing the same - Google Patents
Die-casting composite-bottom pot and process for manufacturing the same Download PDFInfo
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- WO2009149614A1 WO2009149614A1 PCT/CN2009/000314 CN2009000314W WO2009149614A1 WO 2009149614 A1 WO2009149614 A1 WO 2009149614A1 CN 2009000314 W CN2009000314 W CN 2009000314W WO 2009149614 A1 WO2009149614 A1 WO 2009149614A1
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/002—Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
Definitions
- the invention relates to a die-casting double bottom pot and a manufacturing process thereof.
- the multi-bottomed pans that can be used for the induction cooker are mostly mechanical riveting type multi-bottomed pans which are mechanically extruded from the stainless iron backsheet and the pot body, because the bottom of the double-bottomed pan body is riveted with the rusted iron backsheet by rivets.
- the stainless iron backsheet has a riveted through hole, and the metal portion which generates the eddy current at the bottom has a small effective effective area, so the thermal efficiency is low, and there are defects such as complicated manufacturing of the mold and the parts, poor connection strength, and the like; Unevenness not only affects the appearance, but also causes damage to the surface of the induction cooker.
- 200720127832.5 discloses a die-casting double-bottomed pan which has a blind hole formed in the stainless steel backsheet, and the pot body and the complex film are fused together during die casting. Since it is connected to the pot body by means of a stud formed by the aluminum liquid filled in the blind hole, if the back film is thin, the depth of the blind hole is shallow, and the connection between the back film and the pot body is The strength is low; if the back film is thick, there is no doubt that the production cost is high.
- the connection between the composite film and the pot body of the double bottom pot mainly depends on the convex column formed in the blind hole. Since the thermal expansion coefficients of the aluminum alloy and the stainless steel are different, the double bottom pot is resistant to cold and heat. The low thermal fatigue performance will undoubtedly affect its service life.
- an object of the present invention is to provide a die-casting multi-bottomed pan which is strong in connection, high in thermal efficiency, stable in thermal fatigue resistance, and simple in manufacturing process, and a manufacturing process thereof.
- a die-casting multi-bottomed pan comprising an aluminum alloy pot body and a composite backsheet integrally molded with the lower portion of the pot body, characterized in that the composite back sheet is rolled from a composite material sheet and a stainless iron sheet.
- the composite material sheet is provided with a plurality of annular grooves, and the annular groove has at least one side wall which is an inner oblique side wall.
- the composite sheet of the present invention is made of pure aluminum or aluminum alloy or other material having a coefficient of linear expansion close to that of the aluminum alloy.
- the manufacturing process of the above die-casting double bottom pot includes the following steps:
- the composite film Since the composite film is die-cast integrally with the lower portion of the die-casting pot body, the molten aluminum liquid during the die casting will fill the annular groove on the composite film, and at least one side wall of the annular groove is the inner oblique side wall, thereby
- the connection between the bottom film and the pot body is very strong, preventing the back film from being separated from the pot body, and prolonging the service life of the die-casting double bottom pot. Since the linear expansion coefficient of the composite sheet and the pot body is similar, the die casting pot is minimally affected by cold and heat exchange, and the thermal fatigue resistance is extremely high.
- the composite film of the present invention has a simple structure and convenient production, and the entire manufacturing process is also very simple, which can greatly reduce the production cost and effectively improve the competitiveness of the product.
- Figure 1 is a schematic view of the structure of the present invention.
- Figure 2 is a schematic view showing the structure of a double film.
- Fig. 3 is a cross-sectional view taken along line A-A of Fig. 2; Replacement page ⁇ Details Article 26) Instruction manual
- Figure 4 is a partial enlarged view of a portion B in Figure 3.
- 1 indicates an aluminum alloy pot
- 2 indicates a composite sheet
- 3 indicates a stainless iron sheet
- 4 indicates a ring-shaped groove.
- the die-casting multi-bottom pan comprises an aluminum alloy pot body 1 and a composite bottom sheet integrally molded with the lower part of the pot body, and the composite bottom sheet is rolled and composited from the composite material sheet 2 and the stainless iron sheet 3, and the composite material is obtained.
- the sheet 2 is provided with a plurality of annular grooves 4, and both sides of the annular groove 4 are inner inclined side walls.
- the composite sheet 2 can be made of pure aluminum or aluminum alloy or other linear expansion.
- the monthly length coefficient is made of a material close to the aluminum alloy.
- the above-mentioned die-casting multi-bottom pan can be manufactured by the following process: First, a composite film is prepared: a composite film 2 and a stainless iron piece 3 are rolled and composited to form a composite film, and then the composite film is punched and formed, and then the annular film is machined on the double film. Slot 4. The second is to place the complex film: The composite film is molded into a mold cavity. Then die-casting: After the die-casting machine starts working, after the die-casting mandrel is clamped, the pressure ratio of the die-casting machine is 700kg/cm 2 , and the molten aluminum alloy is sprayed at a temperature of 600 ° C at a jet speed of 40 m/s.
- the filling time is 0.05 seconds.
- the pot body and the above complex film are die-cast into one by a die casting machine.
- the surface treatment After the die-casting pot is cooled, the flash edge on the pot body is removed, and then sandblasting and spraying treatment are performed to obtain a die-casting double bottom pot.
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
- Cookers (AREA)
Abstract
A die-casting composite-bottom pot and a process for manufacturing the same are provided. The pot comprises a pot body (1) made of aluminum alloy and a composite-bottom sheet formed integrally with the bottom portion of the pot body (1) by die-casting. The composite-bottom sheet combines a compound material sheet (2) with a stainless iron sheet (3) by rolling. The compound material sheet is provided with multiple annular grooves (4) whose at least one side wall is inclined inwardly. The compound material sheet (2) is made of pure aluminum, aluminum alloy or other material with similar linear expansion coefficient to that of aluminum alloy.
Description
说 明 书 Description
压铸复底锅及其制造工艺 Die-casting double bottom pot and manufacturing process thereof
技术械 Technical equipment
本发明涉及一种压铸复底锅及其制造工艺。 The invention relates to a die-casting double bottom pot and a manufacturing process thereof.
背景技术 Background technique
目前， 可用于电磁炉的复底锅多为采用机械将不锈铁底片和锅体挤压成型 的机械铆合式复底锅， 由于这种复底锅锅体底部与不锈铁底片通过铆钉铆合， 不锈铁底片上有铆合通孔， 其底部产生涡流的金属部分实际有效面积较小， 故 热效率较低， 且存在模具及零部件制造复杂， 连接强度差等缺陷； 而不锈铁底 片不平整， 不仅影响美观， 而且对电磁炉表面也会造成损伤。 由此， 专利申请 号为 200720127832.5的中国实用新型专利公开了一种压铸复底锅， 它是在不锈 铁复底片上开有盲孔， 在压铸时将锅体和复底片融合在一起。 由于它是依靠填 充在盲孔内的铝液形成的凸柱将复底片和锅体连接在一起的 , 如果复底片较薄， 则盲孔的深度较浅， 复底片和锅体之间的连接强度就低； 如果复底片较厚， 则 无疑存在生产成本高的缺点。 另外， 该复底锅的复底片和锅体的连接主要依靠 盲孔内形成的凸柱， 由于铝合金和不锈铁的热膨胀系数不一， 该复底锅在冷、 热交替作用下， 耐热疲劳性能较低， 无疑会影响其使用寿命。 At present, the multi-bottomed pans that can be used for the induction cooker are mostly mechanical riveting type multi-bottomed pans which are mechanically extruded from the stainless iron backsheet and the pot body, because the bottom of the double-bottomed pan body is riveted with the rusted iron backsheet by rivets. The stainless iron backsheet has a riveted through hole, and the metal portion which generates the eddy current at the bottom has a small effective effective area, so the thermal efficiency is low, and there are defects such as complicated manufacturing of the mold and the parts, poor connection strength, and the like; Unevenness not only affects the appearance, but also causes damage to the surface of the induction cooker. Thus, the Chinese utility model patent of the patent application No. 200720127832.5 discloses a die-casting double-bottomed pan which has a blind hole formed in the stainless steel backsheet, and the pot body and the complex film are fused together during die casting. Since it is connected to the pot body by means of a stud formed by the aluminum liquid filled in the blind hole, if the back film is thin, the depth of the blind hole is shallow, and the connection between the back film and the pot body is The strength is low; if the back film is thick, there is no doubt that the production cost is high. In addition, the connection between the composite film and the pot body of the double bottom pot mainly depends on the convex column formed in the blind hole. Since the thermal expansion coefficients of the aluminum alloy and the stainless steel are different, the double bottom pot is resistant to cold and heat. The low thermal fatigue performance will undoubtedly affect its service life.
发明内容 Summary of the invention
针对上述问题,本发明的目的是提供一种连接牢固、 热效率高、 耐热疲劳性 能稳定并且制造工艺简单的压铸复底锅及其制造工艺。 In view of the above problems, an object of the present invention is to provide a die-casting multi-bottomed pan which is strong in connection, high in thermal efficiency, stable in thermal fatigue resistance, and simple in manufacturing process, and a manufacturing process thereof.
本发明的目的是以如下方式实现的： 一种压铸复底锅， 包括铝合金锅体及 与锅体下部压铸成一体的复底片， 其特点是复底片由复合材料片和不锈铁片轧 制复合而成， 复合材料片上设有若干环形凹槽， 环形凹槽至少有一侧壁为内斜 侧壁。 The object of the present invention is achieved in the following manner: A die-casting multi-bottomed pan comprising an aluminum alloy pot body and a composite backsheet integrally molded with the lower portion of the pot body, characterized in that the composite back sheet is rolled from a composite material sheet and a stainless iron sheet. The composite material sheet is provided with a plurality of annular grooves, and the annular groove has at least one side wall which is an inner oblique side wall.
替换页（细则第 26条）
说 明 书 Replacement page (Article 26) Instruction manual
本发明的复合材料片采用纯铝或铝合金或线膨胀系数与铝合金接近的其它 材料制成。 The composite sheet of the present invention is made of pure aluminum or aluminum alloy or other material having a coefficient of linear expansion close to that of the aluminum alloy.
上述压铸复底锅的制造工艺包括以下步骤： The manufacturing process of the above die-casting double bottom pot includes the following steps:
( 1 ) 制作复底片： a.将复合材料片与不锈铁片轧制复合； b.将复底片冲裁成形； c.在复底片上加工环形凹槽； (1) making a composite film: a. rolling composite material sheet with stainless iron sheet; b. blanking the composite film; c. processing the annular groove on the double film;
(2) 放置复底片： 将复底片放入压铸模定模型腔； (2) placing the complex film: placing the complex film into the die-casting mold cavity;
( 3 )压铸： 待压铸机开始工作， 压铸机动定模合模后， 使压铸机压射比压值达 到 200-1000kg/cm2, 将熔融状态温度为 500-700°C液态铝合金以 10-60m/s 的喷射速度充填入型腔,充填时间为 0.02- 0.09秒， 待铝液充满型腔后， 锅 体与上述复底片即通过压铸机压铸成型为一体； (3) Die-casting: After the die-casting machine starts to work, after the die-casting mandrel is clamped, the pressure ratio of the die-casting machine is 200-1000kg/cm 2 , and the molten aluminum alloy is 500-700°C. The injection speed of -60m/s is filled into the cavity, and the filling time is 0.02-0.09 seconds. After the aluminum liquid fills the cavity, the pot body and the above complex film are die-cast by the die casting machine;
( 4 )表面处理： 待压铸锅冷却后， 去除锅体上的飞边， 再进行喷砂、 喷涂处理， 即可制得压铸复底锅。 (4) Surface treatment: After the die-casting pot is cooled, the flash edge on the pot body is removed, and then sandblasting and spraying treatment are performed to obtain a die-casting double bottom pot.
由于复底片是与压铸锅锅体下部压铸成一体的， 在压铸时熔融的铝液会充 满复底片上的环形凹槽， 而环形凹槽至少有一侧的側壁为内斜侧壁， 因此可使 复底片与锅体的连接非常牢固， 防止复底片与锅体脱离， 可延长压铸复底锅的 使用寿命。 由于复合材料片与锅体的线膨胀系数相近， 因此压铸锅受冷、 热交 替作用的影响极小， 耐热疲劳稳定性极高。 另外， 本发明中的复底片结构简单、 生产方便， 且整个制造工艺也十分简单， 可大大降低生产成本， 有效地提高产 品的竟争力。 Since the composite film is die-cast integrally with the lower portion of the die-casting pot body, the molten aluminum liquid during the die casting will fill the annular groove on the composite film, and at least one side wall of the annular groove is the inner oblique side wall, thereby The connection between the bottom film and the pot body is very strong, preventing the back film from being separated from the pot body, and prolonging the service life of the die-casting double bottom pot. Since the linear expansion coefficient of the composite sheet and the pot body is similar, the die casting pot is minimally affected by cold and heat exchange, and the thermal fatigue resistance is extremely high. In addition, the composite film of the present invention has a simple structure and convenient production, and the entire manufacturing process is also very simple, which can greatly reduce the production cost and effectively improve the competitiveness of the product.
附图说明 DRAWINGS
图 1为本发明的结构示意图。 Figure 1 is a schematic view of the structure of the present invention.
图 2为复底片的结构示意图。 Figure 2 is a schematic view showing the structure of a double film.
图 3为图 2的 A- A剖视图。 替换页 ^细则第 26条）
说 明 书 Fig. 3 is a cross-sectional view taken along line A-A of Fig. 2; Replacement page ^Details Article 26) Instruction manual
图 4为图 3中 B部的局部放大图。 Figure 4 is a partial enlarged view of a portion B in Figure 3.
图中： 1表示铝合金锅体； 2表示复合材料片； 3表示不锈铁片； 4表示环 形凹槽。 In the figure: 1 indicates an aluminum alloy pot; 2 indicates a composite sheet; 3 indicates a stainless iron sheet; and 4 indicates a ring-shaped groove.
具体实施方式 detailed description
以下将结合附图并通过实施例对本发明作进一步的描述。 The invention will be further described below by way of examples with reference to the accompanying drawings.
参照图 1〜图 4, 压铸复底锅包括铝合金锅体 1和与锅体下部压铸成一体的 复底片， 复底片由复合材料片 2和不锈铁片 3轧制复合而成， 复合材料片 2上 开有若干环形凹槽 4,环形凹槽 4两侧均为内斜侧壁， 为了提高压铸锅的耐热疲 劳稳定性， 复合材料片 2可采用纯铝或铝合金或其它线膨月长系数与铝合金接近 的材料制成。 上述压铸复底锅可以如下工艺制造： 首先制作复底片： 将复合材 料片 2与不锈铁片 3轧制复合形成复底片， 再将复底片冲裁成形， 然后在复底 片上车加工环形凹槽 4。 其次是放置复底片： 将复底片^压铸模定模型腔。接 着进行压铸： 待压铸机开始工作， 压铸机动定模合模后， 使压铸机压射比压值 达到 700kg/cm2, 将熔融状态温度为 600°C液态铝合金以 40m/s的喷射速度充填 入型腔，充填时间为 0.05秒， 待铝液充满型腔后， 锅体与上述复底片即通过压铸 机压铸成型为一体。 最后是表面处理： 待压铸锅冷却后， 去除锅体上的飞边， 再进行喷砂、 喷涂处理， 即可制得压铸复底锅。 Referring to FIG. 1 to FIG. 4, the die-casting multi-bottom pan comprises an aluminum alloy pot body 1 and a composite bottom sheet integrally molded with the lower part of the pot body, and the composite bottom sheet is rolled and composited from the composite material sheet 2 and the stainless iron sheet 3, and the composite material is obtained. The sheet 2 is provided with a plurality of annular grooves 4, and both sides of the annular groove 4 are inner inclined side walls. In order to improve the thermal fatigue stability of the die-casting pot, the composite sheet 2 can be made of pure aluminum or aluminum alloy or other linear expansion. The monthly length coefficient is made of a material close to the aluminum alloy. The above-mentioned die-casting multi-bottom pan can be manufactured by the following process: First, a composite film is prepared: a composite film 2 and a stainless iron piece 3 are rolled and composited to form a composite film, and then the composite film is punched and formed, and then the annular film is machined on the double film. Slot 4. The second is to place the complex film: The composite film is molded into a mold cavity. Then die-casting: After the die-casting machine starts working, after the die-casting mandrel is clamped, the pressure ratio of the die-casting machine is 700kg/cm 2 , and the molten aluminum alloy is sprayed at a temperature of 600 ° C at a jet speed of 40 m/s. Filling into the cavity, the filling time is 0.05 seconds. After the aluminum liquid fills the cavity, the pot body and the above complex film are die-cast into one by a die casting machine. Finally, the surface treatment: After the die-casting pot is cooled, the flash edge on the pot body is removed, and then sandblasting and spraying treatment are performed to obtain a die-casting double bottom pot.
替换页（细则第 26条)
Replacement page (Article 26)
Claims
1. 一种压铸复底锅， 包括铝合金锅体（ 1 )及与锅体下部压铸成一体的复底片， 其特征在于复底片由复合材料片 （2 )和不锈铁片 （3 )轧制复合而成， 复合 材料片 （2 )上设有若干环形凹槽（4 ), 环形凹槽（4 )至少有一侧壁为内斜 侧壁。 A die-casting double bottom pan comprising an aluminum alloy pot body (1) and a composite backsheet integrally molded with the lower portion of the pot body, characterized in that the double bottom sheet is rolled from the composite material sheet (2) and the stainless iron sheet (3) The composite sheet (2) is provided with a plurality of annular grooves (4), and at least one of the annular grooves (4) is an inner inclined side wall.
2.根据权利要求 1所述的压铸复底锅， 其特征在于复合材料片 （2 )采用纯铝或 铝合金或其它线膨胀系数与铝合金接近的材料制成。 A die-casting multi-bottom pan according to claim 1, characterized in that the composite sheet (2) is made of pure aluminum or aluminum alloy or other material having a coefficient of linear expansion close to that of the aluminum alloy.
3.一种如权利要求 1所述压铸复底锅的制造工艺， 其特征在于包括以下步骤： ( 1 )制作复底片： a.将复合材料片与不锈铁片轧制复合； 3. A process for manufacturing a die-casting multi-bottom pan according to claim 1, comprising the steps of: (1) making a composite film: a. rolling composite film and stainless steel sheet;
b.将复底片冲裁成形； - c.在复底片上加工环形凹槽； b. blanking the composite film; - c. processing the annular groove on the composite film;
( 2 )放置复底片： 将复底片放入压铸模定模型腔； (2) placing a complex film: placing the complex film into a die-casting mold cavity;
( 3 )压铸： 待压铸机开始工作， 压铸机动定模合模后， 使压铸机压射比压值达 到 200-1000kg/cm2, 将熔融状态温度为 500-700°C液态铝合金以 10-60m/s 的喷射速度充樣入型腔，充填时间为 0.02-0.09秒， 待铝液充满型腔后， 锅 体与上述复底片即通过压铸机压铸成型为一体； (3) Die-casting: After the die-casting machine starts to work, after the die-casting mandrel is clamped, the pressure ratio of the die-casting machine is 200-1000kg/cm 2 , and the molten aluminum alloy is 500-700°C. The injection speed of -60m/s is filled into the cavity, and the filling time is 0.02-0.09 seconds. After the aluminum liquid fills the cavity, the pot body and the above complex film are die-cast by the die casting machine;
( 4 )表面处理： 待压铸锅冷却后， 去除锅体上的飞边，再进行喷砂、 喷涂处理， 即可制得压铸复底锅。 (4) Surface treatment: After the mold is cooled, the flash edge on the pot body is removed, and then sandblasting and spraying treatment are performed to obtain a die-casting double bottom pot.
替换页（细则第 26条)
Replacement page (Article 26)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810062506XA CN101332041B (en) | 2008-06-13 | 2008-06-13 | Die-casting compound bottom kettle and manufacturing method thereof |
| CN200810062506.X | 2008-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009149614A1 true WO2009149614A1 (en) | 2009-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2009/000314 WO2009149614A1 (en) | 2008-06-13 | 2009-03-25 | Die-casting composite-bottom pot and process for manufacturing the same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101332041B (en) |
| WO (1) | WO2009149614A1 (en) |
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| EP2732675A2 (en) * | 2011-07-14 | 2014-05-21 | TSI Technologies LLC | Induction heating system employing induction-heated switched-circuit vessels |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101332041B (en) * | 2008-06-13 | 2010-09-15 | 朱金洪 | Die-casting compound bottom kettle and manufacturing method thereof |
| CN201790585U (en) * | 2010-08-03 | 2011-04-13 | 中山市高美能炊具电器制品有限公司 | Novel combined cooker bottom of aluminum cooker |
| CN103317201A (en) * | 2012-09-27 | 2013-09-25 | 潘国相 | Brazing method for aluminum pot and aluminum-based welding flux applied to brazing method |
| CN104873091A (en) * | 2015-05-18 | 2015-09-02 | 平顶山市美伊金属制品有限公司 | Pig-iron less-oil-fume non-stick pan |
| CN107550233A (en) * | 2017-08-04 | 2018-01-09 | 浙江伯是购厨具有限公司 | A kind of aluminum pot and its newly answer bottom technique |
| CN114532847A (en) * | 2022-01-28 | 2022-05-27 | 浙江康都日用品有限公司 | Coffee pot base and processing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09225561A (en) * | 1996-02-22 | 1997-09-02 | Showa Alum Corp | Dissimilar metal joined material |
| JPH09225560A (en) * | 1996-02-22 | 1997-09-02 | Showa Alum Corp | Dissimilar metal joined material |
| CN2390519Y (en) * | 1999-09-29 | 2000-08-09 | 顾健 | Double-bottom electromagnetic cooker |
| CN2397850Y (en) * | 1999-05-13 | 2000-09-27 | 新兴县先丰不锈钢制品有限公司 | Stainless steel pot with double-bottle |
| CN101332041A (en) * | 2008-06-13 | 2008-12-31 | 朱金洪 | Die-casting compound bottom kettle and manufacturing method thereof |
-
2008
- 2008-06-13 CN CN200810062506XA patent/CN101332041B/en active Active
-
2009
- 2009-03-25 WO PCT/CN2009/000314 patent/WO2009149614A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09225561A (en) * | 1996-02-22 | 1997-09-02 | Showa Alum Corp | Dissimilar metal joined material |
| JPH09225560A (en) * | 1996-02-22 | 1997-09-02 | Showa Alum Corp | Dissimilar metal joined material |
| CN2397850Y (en) * | 1999-05-13 | 2000-09-27 | 新兴县先丰不锈钢制品有限公司 | Stainless steel pot with double-bottle |
| CN2390519Y (en) * | 1999-09-29 | 2000-08-09 | 顾健 | Double-bottom electromagnetic cooker |
| CN101332041A (en) * | 2008-06-13 | 2008-12-31 | 朱金洪 | Die-casting compound bottom kettle and manufacturing method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2732675A2 (en) * | 2011-07-14 | 2014-05-21 | TSI Technologies LLC | Induction heating system employing induction-heated switched-circuit vessels |
| EP2732675A4 (en) * | 2011-07-14 | 2015-04-01 | Tsi Technologies Llc | Induction heating system employing induction-heated switched-circuit vessels |
| US9486109B2 (en) | 2011-07-14 | 2016-11-08 | Tsi Technologies Llc | Induction heating system employing induction-heated switched-circuit vessels |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101332041B (en) | 2010-09-15 |
| CN101332041A (en) | 2008-12-31 |
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