KR20130042246A - Manufacturing method of metal clad - Google Patents

Manufacturing method of metal clad Download PDF

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Publication number
KR20130042246A
KR20130042246A KR1020110106429A KR20110106429A KR20130042246A KR 20130042246 A KR20130042246 A KR 20130042246A KR 1020110106429 A KR1020110106429 A KR 1020110106429A KR 20110106429 A KR20110106429 A KR 20110106429A KR 20130042246 A KR20130042246 A KR 20130042246A
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KR
South Korea
Prior art keywords
metal
heating
clad material
plasma
rolling
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KR1020110106429A
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Korean (ko)
Inventor
윤원규
양승호
홍길수
기호
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희성금속 주식회사
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Priority to KR1020110106429A priority Critical patent/KR20130042246A/en
Publication of KR20130042246A publication Critical patent/KR20130042246A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/04—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a rolling mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
    • B23K20/233—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
    • B23K20/2333—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer one layer being aluminium, magnesium or beryllium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/12—Copper or alloys thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/02—Noble metals
    • B32B2311/08—Silver

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

PURPOSE: A manufacturing method for a metal clad is provided to prevent metal oxidation by performing an entire process in a vacuum atmosphere and to shorten a process lead time by producing a metal clad without a separate rolling and heat treatment process. CONSTITUTION: A manufacturing method for a metal clad comprises the following steps: preforming a surface activation process by radiating plasma on the surface of a first metal film(1) and a second metal film(2) under a vacuum condition; heating the first and second metal films; and cladding the first and second metal films by rolling at low pressure. In the surface activation process, 1.0-1.5kw of plasma power, the plasma reaction gas of Ar, and 10% hydrogen mixture gas are used based on DC plasma. Bond strength is improved by heating under the vacuum condition of the following: 500-600sccm of flow rate, 100-500>= of base metal and overlay heating temperature, 100-200m/min of rolling roll speed, and 1.0-3.0Ton of low pressure rolling load. [Reference numerals] (1) First metal film; (2) Second metal film; (3) Plasma generator; (4) Rolling roll; (5) Clad material; (7) Vacuum chamber; (8) Heating system;

Description

Manufacturing method of metal cladding {Manufacturing method of metal clad}

The present invention relates to a method for producing a metal clad material. In particular, the present invention relates to a method for producing a metal clad material through plasma surface activation treatment and heating of a base material and an overlay material under vacuum conditions.

In recent years, manufacturing methods of surface-treating metals in a vacuum and bonding have been commercialized. In the clad material manufactured as described above, in order for each bonded metal layer to perform its function in an electronic component, the cladding material must maintain a strong bonding strength between the metal layers against repeated bending, life shock, etc. Can be even higher depending on the environment.

In order to increase the bonding strength, the process conditions of the manufacturing method (notified by Japanese Patent Application Publication No. 2003-0087755) for surface-treating metal in conventional vacuum are typically 1. plasma conditions, 2. vacuum conditions, 3. rolling speed, 4. Can be expressed as rolling load.

However, 1. Plasma conditions, when too strong, may lower the bonding strength due to recontamination of metal particles and the like. 2. In the case of vacuum conditions, the higher the degree of vacuum, the higher the strength. The vacuum of -3 Torr can only be realized. 3. In the case of the rolling speed, the bonding strength is good because there is a lot of time in the rolling roll if it is as late as possible. On the contrary, there is a big problem that the deformation of the material occurs due to too long irradiation on the plasma. In the case of a load, there may be an increase in the bonding strength due to the increase in the rolling load, but the effect of the ultra-thin cladding of several to several tens of micrometers is insignificant. The thickness of the ash is increased and post-processing (rolling for annealing and thickness control) after rolling is additionally required. This increases the process lead time.

In addition, in the case of the vacuum condition process, there is a method of increasing the bonding strength by separating the chamber for performing the plasma treatment and the chamber for the rolling roll to vary the degree of vacuum (by increasing the vacuum degree of the rolled portion). In the design, it is expensive to add a vacuum equipment and the like, there was a problem that always maintain a high degree of vacuum in the rolling roll portion.

In addition, a conventional hot rolling process is performed in the air, there is a problem that the metal oxidation occurs by high temperature exposure.

An object of the present invention is to provide a method for producing a metal clad material having a high bonding strength of 0.1 ~ 3.0mm thickness through the base material and overlay material heating and low rolling after the surface activation treatment under vacuum conditions.

The present invention relates to a method of manufacturing a metal clad material that clads an overlay material metal foil on a base metal foil using a clad material manufacturing process by a continuous mass production vacuum plasma treatment, wherein the plasma is deposited on the surface of the first metal foil and the second metal foil under vacuum conditions. It characterized by a method of producing a metal clad material by heating and low-pressure rolling the first metal foil and the second metal foil surface-treated after the surface activation treatment.

When surface activation under vacuum condition, plasma power 1.0 ~ 1.5kw, plasma reaction gas Ar and 10% hydrogen mixed gas are used by DC plasma, flow rate is 500 ~ 600sccm, base material and overlay material heating temperature 100 ~ 500 ℃, The metal clad material is manufactured through a rolling roll speed of 100 to 200 m / min and a low pressure rolling load of 1.0 to 3.0 Ton.

In addition, it is possible to manufacture a metal clad material of 0.1mm ~ 3.0mm thickness according to the heating of the base material and the overlay material, and post-processing process after manufacturing the metal clad material by controlling the reduction ratio of 0 ~ 1% according to low rolling (heat treatment and Rolling for thickness control has been eliminated, which significantly shortens the process lead time and is characterized by the manufacture of metal cladding materials with high bonding strength.

For the present invention, the unit for heating the base material and the overlay material is two heaters, that is, an upper block heater and a lower block heater, which are made of halogen heating wire in the heating system before being put into the low rolling roll after plasma surface treatment as shown in FIGS. 1 and 2. Heating Zone was configured. The heating system can control the temperature of 100 ~ 500 ℃ and can measure the temperature by installing a thermal sensor (thermocouple) in the heating zone and vacuum chamber.

By controlling the rolling speed, it is possible to control the time for the base material and the overlay material to pass through the heating zone, and to improve the bonding strength of the metal clad material by hot rolling through the plasma surface treatment and heating of the base material and the overlay material in a vacuum atmosphere. Although the rolling process is performed in the air to generate a metal oxidation phenomenon due to high temperature exposure, the metal cladding material manufacturing method according to the present invention controls the metal oxidation phenomenon by performing the whole process in a vacuum atmosphere. It is expected that the utilization of this method will be high through the fusion of the existing hot-rolling bonding technology and plasma surface treatment technology. In addition, by repeating the above bonding method to the metal clad material to which the first metal foil and the second metal foil are bonded, the same or different types of metal foils are bonded to each other to manufacture a multilayer metal clad material of two or more layers.

The base material and the overlay material of the clad material produced by the present invention are composed of copper, copper alloy, aluminum, nickel, silver and silver alloy.

The process lead time is shortened because the metal clad material is manufactured without the addition of a separate rolling and heat treatment process through the use of the metal mass material manufacturing process by continuous mass production vacuum plasma treatment, heating and low rolling according to the present invention, and high bonding It is possible to provide a thick metal clad material of strength and 3mm thickness.

In addition, the whole process can be performed in a vacuum atmosphere to prevent metal oxidation.

1 is a schematic diagram of a method for producing a metal clad material by surface activation treatment, heating and low rolling treatment under vacuum conditions.
2 shows a heating zone in a heating system.

The present invention relates to a method of manufacturing a metal clad material that clads an overlay material metal foil on a base metal foil using a clad material manufacturing process by a continuous mass production vacuum plasma treatment, wherein the plasma is deposited on the surface of the first metal foil and the second metal foil under vacuum conditions. It characterized by a method of producing a metal clad material by heating and low-pressure rolling the first metal foil and the second metal foil surface-treated after surface activation treatment.

In the surface activation treatment under vacuum conditions, plasma power 1.0 ~ 1.5kw, plasma reaction gas Ar and 10% hydrogen mixed gas using the plasma, flow rate is 500 ~ 600sccm, heating temperature of the base material and overlay material 100 ~ 500 ℃, It is a method of manufacturing a metal clad material through a rolling roll speed of 100 ~ 200m / min, low pressure rolling load 1.0 ~ 3.0Ton conditions, conventional rolling and heat treatment is unnecessary.

For the present invention, the unit for heating the base material and the overlay material constitutes a heating zone with two heaters, that is, an upper block heater and a lower block heater, of halogen heating wire in the heating system before being put into the low rolling roll after the plasma surface treatment. The heating system can control the temperature from 100 to 500 ℃, and the temperature is measured by installing a thermal sensor (thermocouple) in the heating zone and the vacuum chamber.

In addition, by repeating the above bonding method to the metal clad material to which the first metal foil and the second metal foil are bonded, the same or different types of metal foils are bonded to each other to manufacture a multilayer metal clad material of two or more layers.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

1 is a schematic diagram of a method for producing a metal clad material by surface activation treatment, heating and low rolling treatment under vacuum conditions. 2 shows a heating zone in a heating system.

1 and 2, in the metal clad method according to the embodiment of the present invention, the first metal foil 1 and the second metal foil 2 are continuously plasma-processed by the plasma generator 3 so that the heating system ( 8) After passing through two heaters made of halogen heating wires, that is, an upper block heater (9) and a heating zone (11) consisting of a lower block heater (10), they are joined by a low pressure rolling roll (4) to the winder (6). Is wound up by.

The present invention consists of copper, copper alloys, aluminum, nickel, silver and silver alloys as the base material and overlay material, and improved metal cladding strength of at least 60% compared to the metal clad material manufactured by conventional plasma surface treatment and low rolling. Remanufacturing is possible.

Using aluminum with a thickness of 0.05 mm with a base material purity of at least 99.9% and nickel with a thickness of 0.1 mm with a purity of at least 99% with an overlay material, the examples are followed by plasma surface treatment, heating and low rolling, and the comparative examples after plasma surface treatment and low rolling. Bond strength was compared. Plasma surface treatment and low rolling process conditions are applied equally to collect data on bonding strength characteristics with and without heating.

The test results are shown in Table 1 below.

Figure pat00001

Plasma surface treatment and low rolling process conditions are the same as plasma power 1.0 ~ 1.5kw, plasma reaction gas Ar and 10% hydrogen mixed gas, flow rate is 600sccm, rolling roll speed 100m / min, low pressure rolling load 3.0Ton And in the case of the embodiment was configured to 300 ℃ Heating Zone.

After bonding, no oxide layer on the surface of the metal clad material was observed, and the rolling reduction rate of the example sample was 1% and the rolling reduction rate of the comparative example sample was observed at the same rolling load. The reason why the reduction rate of the sample is increased compared to that of the sample of the comparative example is considered to be a phenomenon due to softening of the base material and the overlay material by heating.

From the results shown in Table 1, the bonding strength is improved by 66% in comparison with the comparative example, and the bonding strength is improved by the diffusion of the nickel layer and the aluminum layer.

Using the base silver alloy (thickness: 1.2 mm) and the overlay material copper alloy (thickness: 0.05 mm), the bonding strength after the plasma surface treatment, heating and low rolling, and the comparative example after the plasma surface treatment and low rolling were compared. Was compared. Plasma surface treatment and low rolling process conditions are applied equally to collect data on bonding strength characteristics with and without heating.

The test results are shown in Table 2 below.

Figure pat00002

Plasma surface treatment and low rolling process conditions are the same as plasma power 1.0 ~ 1.5kw, plasma reaction gas Ar and 10% hydrogen mixed gas, flow rate is 600sccm, rolling roll speed 100m / min, low pressure rolling load 3.0Ton And in the case of the embodiment was configured to 450 ℃ Heating Zone.

After bonding, no oxide layer on the surface of the metal clad material was observed, and the rolling reduction rate of the example sample was 0.9% and the rolling reduction rate of the comparative example sample was observed at the same rolling load. The reason why the reduction rate of the sample is increased compared to that of the sample of the comparative example is considered to be a phenomenon due to softening of the base material and the overlay material by heating.

In addition, the bonding strength of the comparative example was observed at a level of 38% compared to the comparative example of Example 1, it was possible to secure a similar level of bonding strength when applying the low rolling load 6.5Ton. However, when the 6.5Ton low rolling load is applied, the reduction ratio is increased to 20%, so that the thickness of the base material and the overlay material is inevitable when manufacturing the same product. The low rolling effect in the manufacture of thick metal cladding materials is reduced, and heating systems need to be applied to improve this.

1: 1st metal foil 2: 2nd metal foil
3: Plasma Generator 4: Rolling Roll
5: cladding material 6: winder
7: vacuum chamber 8: heating system
9: UPPER BLOCK HEATER 10: LOWER BLOCK HEATER
11: Heating Zone

Claims (6)

Irradiating the surface of the first metal foil and the second metal foil under vacuum conditions to perform a surface activation process, heating the surface activated first metal foil and the second metal foil, and heating the first and second metal foils. It consists of a step of cladding the metal foil by low-pressure rolling, using the plasma plasma 1.0 to 1.5kw, plasma reaction gas Ar and 10% hydrogen mixed gas using the DC plasma, the flow rate is 500 ~ 600sccm, Base metal and overlay material heating temperature 100 ~ 500 ℃, rolling roll speed 100 ~ 200m / min, low pressure rolling load 1.0 ~ 3.0Ton to manufacture a metal clad material characterized in that it has an improved bonding strength by heating under vacuum conditions Way. A method of manufacturing a metal clad material having improved bonding strength by heating under vacuum conditions, the method comprising: a heating wire for raising the temperature therein under vacuum conditions and a thermal sensor (thermocouple) for temperature control, and the temperature being 100 to 500 Using a heating system that can be controlled up to ℃, the temperature and rolling speed are adjusted to allow the clad material to pass through the heating zone, while the surface of the clad material receives heat from the heating zone and is heated under vacuum conditions where the bonding strength is improved by diffusion of the surface of the clad material. Method for producing a metal clad material characterized in that it has an improved bonding strength by. 3. The method according to claim 1 or 2,
Method for producing a metal clad material, characterized in that it has an improved bonding strength by heating under vacuum conditions that control the reduction ratio of the metal clad material to 0 ~ 1%. 3. The method according to claim 1 or 2,
Method for producing a metal clad material, characterized in that the metal clad material having an improved bonding strength by heating under vacuum conditions to produce a thickness of 0.1 ~ 3.0mm. 3. The method according to claim 1 or 2,
The material of the clad material is a method of producing a metal clad material having an improved bonding strength by heating under vacuum conditions, characterized in that selected from copper, copper alloy, aluminum, nickel, silver and silver alloy. 3. The method according to claim 1 or 2,
The metal cladding material is a method of manufacturing a metal cladding material having improved bonding strength by heating under vacuum conditions, characterized in that by repeating the above method to bond the same or different metal foil to produce a multi-layered metal cladding.
KR1020110106429A 2011-10-18 2011-10-18 Manufacturing method of metal clad KR20130042246A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101451297B1 (en) * 2013-04-30 2014-10-17 한국기계연구원 Method for manufacturing of Al-Cu dissimilar metal plate, Al-Cu dissimilar metal plate thereby, and a heat exchanger including Al-Cu dissimilar metal plate
CN108479386A (en) * 2018-05-31 2018-09-04 深圳市中金岭南科技有限公司 A kind of device and processing method of selectivity heatable catalytic processing exhaust gas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101451297B1 (en) * 2013-04-30 2014-10-17 한국기계연구원 Method for manufacturing of Al-Cu dissimilar metal plate, Al-Cu dissimilar metal plate thereby, and a heat exchanger including Al-Cu dissimilar metal plate
CN108479386A (en) * 2018-05-31 2018-09-04 深圳市中金岭南科技有限公司 A kind of device and processing method of selectivity heatable catalytic processing exhaust gas
CN108479386B (en) * 2018-05-31 2023-12-19 深圳市中金岭南科技有限公司 Device and method for selectively heating and catalyzing waste gas

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