KR100950075B1 - Manufacturing method of high efficiency heater using nano patterning - Google Patents

Abstract

The present invention relates to a method of manufacturing a high efficiency heater using nano patterning process technology, and more particularly, an oxide coating coating on an aluminum alloy sheet or an aluminum alloy molding material, a sealing process using a nano catalyst on a multi-porous nano structure, and an insulating layer. The present invention relates to a method for producing a highly efficient heater made of a carbon heating element, a heating protection plate, and the like.

The manufacturing method for this step is the step of coating the oxide film on both sides of the aluminum alloy plate or aluminum alloy molding material, the sealing step of the nano-catalyst in the multi-pore of the nano structure, the heat-resistant epoxy and hardener and nano aluminum on one surface of the plate or molding material Coating a composite insulating epoxy mixed with a thin film, pressing and attaching a copper plate for forming an electrode at high temperature and high pressure before the composite insulating epoxy is solidified, forming an electrode pattern on the copper plate, and a liquid carbon heating element Printing a step, connecting a line for supplying electricity to an electrode, and attaching the composite insulating epoxy to the outer side of the protective plate to attach a protective plate for protection of the heating element to an upper portion of the heating element to attach the heating element and the protective plate. The protective plate is any one of an aluminum alloy plate and a heat-resistant nonmetal insulating material. Phosphorus step, characterized in that it comprises a step of preventing the self-ignition by injecting nitrogen gas into the heater to remove the remaining air and to maintain the airtight so as not to re-invade the oxygen in the atmosphere.

Description

Manufacturing method of high efficiency heater using nano patterning}

The present invention relates to a method for manufacturing a high efficiency heater using nano patterning process technology, and more particularly, to an aluminum coating plate or an aluminum alloy molding material, anodized coating, sealing processing using a nano catalyst in a multi-porous nano structure, insulation A method for producing a highly efficient heater made of a layer, a carbon heating element, a heating protection plate, and the like.

Existing prior art alumina sintered ceramic heater has the characteristic that the temperature rises rapidly when it is energized, which can cause a difference of at least several tens to several hundred degrees Celsius during temperature control. Therefore, the method of controlling the energization state of the heater is mainly used according to the temperature of water or air, which is a heat exchange medium, not the temperature control of the heater itself.

However, when water is heat exchanged, when there is no water, when the temperature is rapidly generated at 1600 ° C., there is a problem that a momentary crack occurs due to a difference in thermal deformation coefficient between alumina and an internal heating element.

On the other hand, the C / G heater is a heater using a resistor of nickel and chromium wire, and it is made by filling the MgO to prevent the short-circuit of the pipe, nickel and chromium wire by inserting nickel and chromium wire into the seamless pipe. In order to increase the length of the pipe by repeating the length of the bend in the U-shape made because the insulation of the bending part MgO (MgO) may be worsened, there is a problem of heater disconnection due to the short circuit. In addition, it is not easy to maintain the air tightness at the beginning and end of the pipe, and leakage of water may occur due to easy penetration of moisture during use.

On the other hand, the biggest influence on the life of the heater is a problem of electrical leakage due to cracks or point corrosion due to the pipe surface layer due to the chemical reaction of the lamination or scale of the suspended matter.

The above problems occur a lot when used for the application consisting of heat exchange of water or oil. As foreign substances or scales generated when heat-exchanging oil or water are pressed on the surface of the heater pipe, the heat exchange efficiency is gradually decreased, and as a result, the heating wire is disconnected due to overheating, or the corrosion is promoted by overheating at the heat-exchanging part. Breakage of the pipe surface is a major factor.

Therefore, the C / G heater has a problem that the durability is not good as the average life of about two years.

Therefore, the present invention has been proposed to solve the conventional problems as described above, and an object of the present invention is a simple design capable of manufacturing a heater unit and a heat exchanger unit integrally by avoiding a complicated structure, and controlling temperature during energization. The present invention provides a method of manufacturing a high-efficiency alumina sintered ceramic heater that can be more precisely controlled, and can seal the nano-porous multi-pores with a nanocatalyst to further increase the effect of far infrared rays.

Method for manufacturing a high efficiency heater according to the nano-patterning process technology of the present invention comprises the steps of (a) anodized coating on both sides of the aluminum alloy plate, or aluminum alloy molding material, (b) multi-porous nano-porous resulting from the step (a) Sealing with a nano-catalyst, (c) applying a thin film of a composite insulating epoxy mixed with a heat-resistant epoxy, a curing agent and nano aluminum powder on one surface of the plate or molding material, (d) the composite of step (c) Pressing and attaching the copper plate for electrode formation at high temperature and high pressure before the insulating epoxy solidifies, (e) forming an electrode pattern on the copper plate of step (d) by corrosion treatment, and (f) liquid carbon Printing a heating element, (g) connecting a line for supplying electricity to the electrode of step (e), and (h) attaching a protective plate for protection of the heating element to an upper portion of the heating element, Applying the composite insulating epoxy of the step (c) to the outside of the arc plate to attach a heating element and the protective plate, wherein the protective plate is any one of an aluminum alloy plate and a heat-resistant non-metallic insulating material, (i) nitrogen gas inside the heater It is characterized in that it comprises a step of preventing self-ignition by injecting to remove the remaining air and to maintain the airtight so that the oxygen in the atmosphere does not reinvade.

According to the present invention, a simple design capable of integrally manufacturing a heater unit and a heat exchanger unit is possible, and temperature control can be more precisely controlled when energized, and the effect of far-infrared rays is obtained by sealing the nanoporous structure with nano catalysts. It can be made larger, making it suitable for use in medical and physical therapy devices that require human health.

In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted if it is determined that the detailed description of the present invention may unnecessarily obscure the subject matter of the present invention. It is to be understood that the following terms are defined in consideration of the functions of the present invention, and may be changed according to the intention of the user, the operator, or the precedent, and the meaning of each term should be interpreted based on the contents will be.

First, the manufacturing method of the present invention (a) anodized coating on both sides of the aluminum alloy plate, or aluminum alloy molding material, (b) sealing by the nano-catalyst in the porous nanostructures generated in the step (a) (C) applying a thin film of a composite insulating epoxy mixed with a heat-resistant epoxy, a curing agent, and a nano aluminum powder to one surface of the plate, and (d) forming an electrode before the composite insulating epoxy of step (c) is solidified. Pressing and attaching the copper plate for high temperature and high pressure, (e) forming an electrode pattern by corrosion treatment on the copper plate of step (d), (f) printing a liquid carbon heating element, and (g) ) (C) connecting a line for energization to the electrode of step (e), (h) complex insulation of the step (c) on the outside of the protective plate in order to attach a protective plate for protection of the heating element on top of the heating element Epoxy Applying a heating element and the protective plate, wherein the protective plate is any one of an aluminum alloy plate and a heat-resistant non-metallic insulating material, (i) injecting nitrogen gas into the heater to remove residual air and not re-invading atmospheric oxygen. It characterized in that it comprises a step of preventing self-ignition in accordance with the confidentiality.

In the step (a), the use of the initial raw material is aluminum alloy sheet material (A5052), aluminum extrusion material (A1100S, AL6063), aluminum die casting materials (L214, L218), etc. when manufacturing a hot water heat exchanger according to the use of the heater desirable.

Through the anodized coating process, nano-structured multi-pores are formed to increase thermal conductivity as the surface area increases.

The nano-catalyst of step (b) is preferably made of a combination of any one or more of Si, Mn, Mg.

When the heat is sucked, the far infrared catalyst has an effect of improving the heat transfer and heat exchange efficiency with an efficiency of 85% or more in the far infrared wavelength in the range of 5 to 100㎛.

In the step (c), the composite insulating epoxy mixes the heat-resistant epoxy, the curing agent, and the nano aluminum powder. When the mixing is completed, the mixed air must be removed using a vacuum pump to maintain a vacuum of 6 mmAq or less. When the composite insulating epoxy is completed, it is preferable that the thickness of the thin film is about 10 to 50 μm.

In the step (f), the liquid carbon is preferably a mixture of carbon powder and thinner having a size of 150Mesh or less.

In order to prevent self-ignition in step (i), nitrogen is injected through any one of the current line passages of step (g) to remove residual air, and then the current line passage with the composite insulating epoxy of step (c). It is desirable to seal and cure.

Hereinafter, a preferred embodiment of the present invention will be described.

Figure 1 shows a manufacturing process of the high efficiency heater according to the present invention.

An aluminum oxide substrate (AL203) coating is applied to both surfaces of the aluminum alloy sheet to prepare an aluminum ceramic substrate.

Nanoporous multi-pores formed through anodized coating are sealed using nanocatalysts. The nanocatalyst may be used alone or in combination of any one of Si, Mn, and Mg.

After the sealing process, an insulating film is treated by coating a composite insulating epoxy thin film mixed with a heat-resistant epoxy, a curing agent, and a nano aluminum powder on one surface of an alumina ceramic substrate. When mixing with the mixer, when the mixing is completed by maintaining a state of vacuum degree of 6mmAq or less by a vacuum pump to remove the mixed air during mixing to complete the composite insulating epoxy. The thickness of the composite insulating epoxy thin film is about 10 to 50 µm.

After the insulating film treatment, the copper plate for electrode formation is pressed at high temperature and high pressure before the composite insulating epoxy solidifies. Before the composite insulating epoxy solidifies, the electrode forming copper plate is placed on the surface to which the epoxy is bonded, and the bonding process is performed by slowly pushing the roller from one side of the product in the opposite direction so that no air layer (bubble) is formed between the epoxy and the copper plate. do.

If the copper plate adhesion state is good, the copper plate and the ceramic substrate are properly adjusted and pressed within a range of a high temperature of 50 to 200 ° C. and a high pressure of 0.5 to 5 tons for a certain time so that the copper plate and the ceramic substrate can be completely cured and bonded by the composite insulating epoxy. Continue to bond. Depending on the shape and size of the product and the compounding ratio of the composite insulating epoxy, the curing temperature and pressure may vary.

After the copper plate is bonded, the electrode pattern is formed on the copper plate using an electrode pattern method such as a general corrosion treatment method of a printed circuit board.

After forming the electrode pattern, a liquid carbon heating element is applied.

The main component of the heating element is carbon which has a powder of 150Mesh or less, and is used in combination so as to maintain a volatile thinner and an appropriate viscosity. The blended exothermic paint is worked using a printing machine and a work jig to be quantitatively printed by a metering device. The heat-generating paint is printed to overlap one half of the electrodes, so that the energization performance is smooth.

The carbon heating element is applied and then preheated to a temperature of 70 ° C. to release the mixed thinner volatile gas.

When the drying is completed, check whether the output of the proper capacity of the heating element is output through the electrodes formed at both ends through a tester. If the heat capacity (power consumption) of the proper capacity is not maintained, the viscosity of the paint is corrected and used.

After the carbon heating element is bonded, the heating element is completed by soldering or using eco-friendly material by using a wire for electricity at both ends of the electrode.

In order to attach a protective plate (aluminum ceramic substrate, or a heat resistant insulating material) for protecting the heating element on the heating element, a composite insulating epoxy is coated on the outer side of the ceramic substrate to attach the heating element and the protection plate. At this time, the epoxy does not flow into the outer edge of the outer edge, in particular, when bonding with the heating element is carefully bonded so as not to infringe the electrode portion of the heating element.

After bonding the upper and lower plates, the adhesive is completed by pressing and adjusting properly within the range of high temperature of 50 ~ 200 ℃ and high pressure of 0.5 ~ 5 ton for a certain time so that it can be completely cured and bonded as in the case of insulating film treatment. do.

When the assembly of the upper and lower plates is completed, composite insulation is installed to remove residual air by injecting nitrogen through one of the conductive line passages to prevent self-ignition of the heater, and to keep the airtight oxygen from re-injecting into the heater. Fabrication is complete by sealing and curing the conducting wire passage with epoxy.

 The high efficiency heater manufactured as described above may serve as a far infrared ray heating heater through a ceramic heating element, and as another embodiment, as shown in FIG. 2, a water path (a is cold water, b is a mold) by die casting. Hot water) can be opened and used as a hot water heat exchanger.

As described above, the present invention, although described by the limited embodiments and drawings, terms or words used in the present specification and claims are not limited to the ordinary or dictionary meanings and should not be interpreted, the technical spirit of the present invention It should be interpreted as meanings and concepts that match.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all of the technical idea of the present invention, which can be replaced at the time of the present application It should be understood that there may be various equivalents and variations.

1 is a manufacturing process diagram of a high efficiency heater according to the present invention.

2 is a hot water heat exchanger having a water passage according to another embodiment of the present invention.

Claims (5)

(A) the step of anodized coating on both sides of the aluminum alloy sheet material, aluminum alloy molding material, (b) sealing the nanoporous polypores generated in step (a) with a nanocatalyst, which is a combination of any one or more of Si, Mn, and Mg; (c) preparing a composite insulating epoxy by mixing a heat-resistant epoxy, a curing agent, and nano-aluminum powder with a mixer, removing the mixed air with a vacuum pump having a vacuum degree of 6 mmAq or less, and then removing the composite insulating epoxy from the plate or molding. Applying a thin film of 10 ~ 50㎛ thickness on one surface of the ash, (d) before the composite insulating epoxy of step (c) is solidified, the electrode forming copper plate is placed on the epoxy-bonded surface, and an air layer (bubble) is not formed between the composite insulating epoxy and the electrode forming copper plate. Attaching the electrode-forming copper plate by continuously pushing the roller in one direction from the one side to a high temperature of 50 to 200 ° C. and a high pressure range of 0.5 to 5 tons, (e) forming an electrode pattern on the electrode forming copper plate of step (d), (f) printing a liquid carbon heating element in which carbon powder and thinner having a size of 150Mesh or less are mixed; (g) connecting a line for energization to the electrode of step (e), (h) in order to attach a protective plate made of any one of an aluminum alloy plate and a heat-resistant nonmetallic insulating material to protect the heating element on top of the heating element, the composite insulating epoxy of step (c) is coated on the outer side of the protective plate, and the heating element And attaching the protective plate by pressing in a high temperature range of 50 to 200 ° C. and a high pressure range of 0.5 to 5 tons so that the protective plate can be completely cured with the protective plate.  (i) after the step (h) to remove the remaining air by injecting nitrogen through any one of the conducting wire passages of step (g) in order to prevent self-ignition of the heater and to prevent re-invasion of atmospheric oxygen; The method of manufacturing a high efficiency heater according to the nano-patterning process technology, characterized in that it comprises a step of sealing and curing the conductive wire passage with the composite insulating epoxy of step (c) to prevent self-ignition. delete delete delete delete

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