CN105050211A - Corrosion-resistant heat dissipation sheet and corrosion-resistant heat emitting sheet - Google Patents
Corrosion-resistant heat dissipation sheet and corrosion-resistant heat emitting sheet Download PDFInfo
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- CN105050211A CN105050211A CN201510401044.XA CN201510401044A CN105050211A CN 105050211 A CN105050211 A CN 105050211A CN 201510401044 A CN201510401044 A CN 201510401044A CN 105050211 A CN105050211 A CN 105050211A
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Abstract
The invention provides a corrosion-resistant heat dissipation sheet. The corrosion-resistant heat dissipation sheet comprises as an austenite-ferrite type stainless steel plate adopted as a heat dissipation element and laminated glass ceramic-based multi-phase composite ceramic adopted as an insulated component, wherein the austenite-ferrite type stainless steel plate and the laminated glass ceramic-based multi-phase composite ceramic are combined with each other closely. The invention also provides a corrosion-resistant heat emitting sheet. The corrosion-resistant heat emitting sheet includes an austenite-ferrite type stainless steel plate adopted as a heat dissipation element and laminated glass ceramic-based multi-phase composite ceramic adopted as an insulated component; and heat generation components are embedded in the corrosion-resistant heat emitting sheet. According to the corrosion-resistant heat emitting sheet of the invention, the bonding strength of the heat generation components is high, and therefore, the corrosion-resistant heat emitting sheet has the advantages of high thermo-shock resistance performance, long service life, sensitive temperature control, high temperature resistance and no possibility of being melt. Electric leakage will not occur on the corrosion-resistant heat emitting sheet, and therefore, security can be improved greatly. The corrosion-resistant heat dissipation sheet and the corrosion-resistant heat emitting sheet of the invention have the advantages of high thermo-shock resistance performance, uniform heating surface, small thermal inertia, high heating speed, high unit-volume heating area, high power density, high thermal efficiency, high design flexibility in structural shape and power density, high performance cost ratio as well as energy-saving and environmentally-friendly properties.
Description
Technical field
The divisional application of the present invention's to be application number be Chinese invention patent application of 201210089912.1.The present invention relates to a kind of corrosion-resistant fin and corrosion-resistant fever tablet.
Background technology
Existing electric fin mainly contains metal substrate fin and ceramic substrate fin, metal substrate fin adopts Al and Alalloy substrate, copper base, stainless steel substrate to be combined the heat dissipation element formed with insulating barrier mostly, some fin adopt cast aluminium to expand heat exchange area, also the graphite that the fin had utilizes conductive coefficient large expands heat exchange area, reaches the object increasing heat exchange efficiency.
There is following shortcoming in the fin of existing middle low temp. electric field of heat exchangers, electric heating pipe type radiator heat-dissipation area is less, uneven, local is easily overheated, and liquid heat exchange is scaling very easily, and volume is large, thermal inertia is large, temperature sensitive member reaction speed is relatively slow, and efficiency is relatively low, because heat too concentrates the life-span short.
Existing sheet electricity fins act panel is owing to mostly adopting Al and Alalloy substrate, copper base, common stainless steel substrate, along with economic development, increasing environmental pollution, but people improve day by day along with the requirement of social progress to food safety and sanitation, it is not ideal enough or not good with insulating barrier binding ability to there is decay resistance in existing electric fins act panel, be difficult to meet the middle electrically heated instructions for use of low temperature, especially decay resistance raises along with temperature and declines, therefore, for the metal as electric heat exchanger heat radiation working face, high-temperature corrosion resistance performance is extremely important.Common ferritic stainless steel makes application be limited to because decay resistance is undesirable; Common stainless steel is as 304 conventional stainless steels, its spot corrosion index (PREN) only has 18, thermal coefficient of expansion is larger, the shaping electric heating element of silk-screen printing technique is adopted to be combined with electrically conductive ink or electrocondution slurry, thermal shock resistance is poor, very easily damage because of voltage fluctuation and heating environment change, and cost is high, actual popularization is had a strong impact on; Common martensitic stain less steel then welding performance is poor, processes more difficult.
Summary of the invention
The present invention's technical problem first to be solved is for the deficiencies in the prior art, provides a kind of and has safety and sanitation, adapts to the corrosive environment of corrosive environment especially under heated condition, the corrosion-resistant fin that thermal shock resistance is strong.For this reason, the present invention is by the following technical solutions: it comprises the austenite ferrite type corrosion resistant plate as heat dissipation element and the laminated glazing ceramic base multiphase composite as insulation component, is closely linked between the described austenite ferrite type corrosion resistant plate as heat dissipation element and the described laminated glazing ceramic base multiphase composite as insulation component.
Another technical problem to be solved of the present invention is for the deficiencies in the prior art, provides a kind of and has safety and sanitation, adapts to the corrosive environment of corrosive environment especially under heated condition, the corrosion-resistant fever tablet that thermal shock resistance is strong.For this reason, the present invention is by the following technical solutions: it comprises as the austenite ferrite type corrosion resistant plate of heat dissipation element, as the laminated glazing ceramic base multiphase composite of insulation component, hot producing element, between the described austenite ferrite type corrosion resistant plate as heat dissipation element and the described laminated glazing ceramic base multiphase composite as insulation component, is closely linked between the described laminated glazing ceramic base multiphase composite as insulation component and described hot producing element.
The present invention through great many of experiments find to adopt austenite ferrite type corrosion resistant plate as heat dissipation element together with the described laminated glazing ceramic base multiphase composite as insulation component through oversintering, there is good binding ability between the two, bond strength is considerably beyond the combination of glass ceramics base multiphase composite ceramic and common austenitic stainless steel, austenite ferrite type corrosion resistant plate has better resistance to spot corrosion performance than common Austenitic corrosion resistant plate simultaneously, and as the laminated glazing ceramic base multiphase composite of insulation component, there are good insulation property, both combinations can be made into a kind of corrosion-resistant fin (composite plate of austenite ferrite type corrosion resistant plate and laminated glazing ceramic base multiphase composite composition) with excellent resistance to spot corrosion performance and good insulating performance.The present invention passes through the combination of laminated glazing ceramic base multiphase composite and austenite ferrite type corrosion resistant plate, and the application for austenite ferrite type corrosion resistant plate opens a new approach.Made corrosion-resistant fin (composite plate of austenite ferrite type corrosion resistant plate and laminated glazing ceramic base multiphase composite composition) passes through the combination of laminated glazing ceramic base multiphase composite insulating barrier and hot producing element again, may be combined with and make a kind of novel fever tablet with excellent resistance to spot corrosion performance and good insulating performance, be suitable for the application at middle low temp. electric heating art especially corrosive environment field of electric heating.
On the basis that have employed technique scheme, the present invention also can adopt following further technical scheme:
For reducing costs, the austenite ferrite type corrosion resistant plate that the present invention adopts also can be austenite ferrite type stainless steel clad plate.Described austenite ferrite type stainless steel clad plate is that austenite ferrite type corrosion resistant plate and other metallic plate lower planes stack by welding the plate be combined into.
Austenite ferrite type corrosion resistant plate of the present invention, also known as two-phase stainless steel plate, has excellent resistance to spot corrosion performance.The spot corrosion index (PREN) of 304 corrosion resistant plates that current food service industry generally uses as heat dissipation element is 18, and the spot corrosion index (PREN) of austenite ferrite type corrosion resistant plate of the present invention generally >=24, decay resistance has had and has significantly improved, the fine corrosion resistance especially under heated condition.Described stainless spot corrosion indices P REN=% chromium (Cr)+3.3% × molybdenum (Mo)+20 × % nitrogen (N) is the important indicator representing pitting resistance of stainless steel.
The present invention adopt the stainless matrix of austenite ferrite type to have austenite and ferrite two phase constitution (content of wherein comparatively looking younger generally is greater than 15%) concurrently, being the stainless steel that a class makes it strengthen by cold working, is the steel grade integrating excellent corrosion-resistant, high strength and be easy to many excellent properties such as processing and manufacturing.Their physical property is between austenitic stainless steel and ferritic stainless steel.Their thermal coefficient of expansion is less relative to austenitic stainless steel, but is generally greater than ferritic stainless steel.Especially high with the laminated glazing ceramic base multiphase composite as insulation component of the present invention, hot producing element bond strength, have the thermal coefficient of expansion matched, thermal shock resistance improves greatly.
The present invention, owing to have employed the strong austenite ferrite type corrosion resistant plate of decay resistance, substantially increases decay resistance in a heated state, is of great importance for the safety and health request improving heated food.
The present invention is for improving intensity and other performance, and the described laminated glazing ceramic base multiphase composite as insulation component has frame, and is combined into the described austenite ferrite type corrosion resistant plate as heat dissipation element the layer structure being with frame.
Austenite ferrite type corrosion resistant plate as heat dissipation element of the present invention has flange, a part for described flange to be the part of described frame or described frame be described flange.
Heat dissipation element of the present invention has single or multiple heat radiation working face.
The inner and/or outer edge of the laminated glazing ceramic base multiphase composite lamination as insulation component of the present invention be partly or entirely combined with described frame, described frame can be single or multiple lift frame, the stack direction of described multilayer frame is parallel or vertical with the stack direction of the described laminated glazing ceramic base multiphase composite as insulation component or become arbitrarily angled layout, and the material making described frame can be metal and/or glass ceramics and/or pottery and/or composite material.
The present invention is owing to have employed the layer structure of band frame, adopt the layer structure of single form in performance, had correction compared with prior art, laminated glazing ceramic base multiphase composite as insulation component of the present invention to the difference of performance requirement, stack direction, layers of material composition, the combination of each layer have employed two or more different layered form according to the heat conducting direction of described fever tablet, each subregion.
The present invention is using the described austenite ferrite type corrosion resistant plate as heat dissipation element, the described laminated glazing ceramic base multiphase composite as insulation component, described hot producing element is combined into has layer structure and with the fever tablet of frame, in fact this be similar to D braided composites, the present invention is made to have better performance, laminated glazing ceramic base multiphase composite as insulation component and the austenite ferrite type corrosion resistant plate as heat dissipation element, hot producing element and the temperature control component arranged as required, temperature sensitive member has better matching performance, manufacture craft obtains optimization.
Laminated glazing ceramic base multiphase composite as insulation component of the present invention have employed multiple activeness and quietness measure, the described laminated glazing ceramic base multiphase composite as insulation component has one or the combination in any of following reinforcement: particle, whisker, fiber, sheet, silk, net, braid, and its material is metal and/or inorganic material; The Strengthening and Toughening mode adopted is yttria stabilizator and/or crystal whisker toughened and/or fiber reinforced.
Aluminium oxide (Al is had in the tissue of the laminated glazing ceramic base multiphase composite as insulation component of the present invention
2o
3), silicon dioxide (SiO
2); Quartz crystal and/or Cristobalitkristall is had in the crystalline phase of the described laminated glazing ceramic base multiphase composite as insulation component.The chemical composition of described quartz crystal and/or Cristobalitkristall is silicon dioxide (SiO
2), described quartz crystal and/or Cristobalitkristall have larger thermal coefficient of expansion, improve the overall thermal coefficient of expansion of the described laminated glazing ceramic base multiphase composite as insulation component, and the described laminated glazing ceramic base multiphase composite as insulation component is matched with the thermal coefficient of expansion of the austenite ferrite type corrosion resistant plate as heat dissipation element.On this basis, be also added with other various oxide, non-oxygen compound, and be formed with other crystal such as crystallite to strengthen the intensity of the described laminated glazing ceramic base multiphase composite as insulation component, toughness, insulation heat-conducting property and thermal shock resistance.
Owing to adopting the technical matters of continuous transition very complicated on performance, material composition, present invention employs all directions, each subregional layer structure transition, meet the operation technique requirement of fever tablet, in manufacture, simplify technique simultaneously, reduce cost, there is higher cost performance.
Glass ceramics (glass-ceramic), also known as devitrified glass, micro-crystalline ceramic, is the polycrystalline solids material class that parent glass is obtained by controlling crystallizing in heating process being contained a large amount of crystallite phase and residual glass phase.Be a kind of Novel multi-phase material being different from glass, pottery, there is the premium properties designed as required.
The material be made up of two or more thing phase is exactly heterogeneous material, and the thing of indication has implication widely mutually here, and they can be similar, also can be inhomogeneous.Multiphase composite is by the new material of two or more heterogeneous, special-shaped, different in nature Material cladding.Also be a kind of programmable heterogeneous material.
Laminated glazing ceramic base multiphase composite of the present invention is a class of multiphase composite (multiphasecompositeceramics), be be matrix with glass ceramics, add the reinforcements such as various ceramic particles and adopt layer structure form to be composited.
The present invention is for improving various performance, the described laminated glazing ceramic base multiphase composite as insulation component is added with pottery, pottery generally enbrittles, for this reason, the present invention have employed following comprehensive enhancing, Toughening Measures to improve thermal shock resistance to the laminated glazing ceramic base multiphase composite as insulation component: utilize pressure sintering to improve material compactness, eliminate the crack defect in glass ceramics base multiphase composite ceramic body as far as possible; Add as particle (nano particle and/or micron particles) and/or whisker and/or fiber and/or silk and/or sheet and/or the reinforcement such as net and/or braid in glass ceramics base multiphase composite ceramic; Have employed yttria stabilizator and/or the Strengthening and Toughening mode such as crystal whisker toughened and/or fiber reinforced; The layer structure with frame is adopted to design.After mainly taking above-mentioned measure, bond strength between austenite ferrite type corrosion resistant plate as heat dissipation element of the present invention and the described laminated glazing ceramic base multiphase composite as insulation component, between described hot producing element and the described laminated glazing ceramic base multiphase composite as insulation component is high, and thermal shock resistance is strong.
Hot producing element of the present invention is electrothermal alloy paillon foil and/or lectrothermal alloy wire electric heating element.
Hot producing element of the present invention also can be one in following electric heating element or combination in any: electrothermal alloy powder and/or metallic resistance slurry are by the electric heating element of sintering, the electric heating element that electrothermal alloy fiber and/or electrothermal alloy whisker and inorganic compound are composited, there is the electric heating element of temp auto-controlled function, semi-conductor electricity thermal element, glass ceramics electric heating element, ceramic electrothermal element, carbon film electric heating element, Carbon Fiber Electric Heating Element, carbon crystal electrothermo element, graphite electric heating element.
Electrothermal alloy paillon foil or lectrothermal alloy wire are a kind of traditional electric heating elements, have good toughness, and heat-resistant impact ability is strong, and the advantage that cost is low, is widely used in traditional electrothermal device.
The present invention adopts the shaping electric heating element made by sintering of silk-screen printing technique as adopted electrothermal alloy powder with electrically conductive ink or electrocondution slurry form, and having wiring can the advantage of design arrangement as required, meets various instructions for use.
Between austenite ferrite type corrosion resistant plate as heat dissipation element of the present invention and the described laminated glazing ceramic base multiphase composite as insulation component, between described hot producing element and the described laminated glazing ceramic base multiphase composite as insulation component by pressure sintering, define the combination of chemistry and/or physics, in conjunction with form be mainly element or the counterdiffusion of molecule phase and/or the sealed and/or chemical bonds of machinery, improve the interface bond strength between bi-material of the present invention.
Laminated glazing ceramic base multiphase composite as insulation component of the present invention is embedded with temperature control component and/or temperature sensitive member, described temperature control component is directly connected with described hot producing element, and described temperature sensitive member and described hot producing element insulate.
The non-heat radiation working face thermal insulation layer that the present invention adopts or sealant can be the material be combined into one with glass ceramics base multiphase composite ceramic.
Non-heat radiation working face of the present invention can adopt heat-insulating material as thermal insulation layer, effectively can reduce the thermal loss of non-heat radiation working face, improves the heat efficiency.
The thermal coefficient of expansion that the present invention forms the described each interlayer of laminated glazing ceramic base multiphase composite as insulation component matches, and controls with the described austenite ferrite type corrosion resistant plate as heat dissipation element, described hot producing element and the temperature that arranges as required and/or the element such as temperature sense also has the thermal coefficient of expansion matched simultaneously.Each adjacent layer glass ceramics base multiphase composite ceramic is combined closely, various performance change can gentle transition, and the temperature gradient adapted between described hot producing element and the described austenite ferrite type corrosion resistant plate as heat dissipation element changes.
Laminated glazing ceramic base multiphase composite as insulation component of the present invention and air contact portion can scribble high-temperature insulation gasket coating, and infiltrate in glass ceramics base multiphase composite ceramic surface capillary hole, isolated air, prevent moisture content from infiltrating layered glass ceramics base multiphase composite ceramic, make it have moistureproof performance, described high-temperature insulation gasket coating can be organic or inorganic nonmetallic materials, as organosilicon, glaze etc.
Hot producing element of the present invention can be provided with Local Phase to weak link, has local overheating from fuse function, plays the fuse effect of final self-destruction, avoids because of the overheated initiation serious accident of entirety.Described Local Phase is relative to described hot producing element normal segments for weak link; by the design of structure, shape, material etc.; one place or many places Local Phase are set specially to weak link; when other all temperature control, overtemperature protection are broken down; first described Local Phase can be there is to weak link because local overheating fuses in described hot producing element; play the fuse effect of final self-destruction, avoid because of the overheated initiation serious accident of entirety.
Described temperature sensitive member has output temperature induced signal and/or limit temperature and/or temperature adjustment and/or overheat protective function, and quantity has one or many.
Described temperature sensitive member can be the conductor temperature sensing element of directly combining closely with described hot producing element.With described hot producing element be combined into have generate heat, the electric-heating assembly of temp. control function, quantity can have one or more groups electric-heating assembly, and described many group electric-heating assemblies are inter-module series, parallel or connection in series-parallel Hybrid connections.
Described temperature sensitive member also can be PTC (positive temperature coefficient) temperature sensitive member of directly combining closely with described hot producing element; the electric-heating assembly having and generate heat, limit temperature or overheat protective function is combined into hot producing element; quantity can have one or more groups electric-heating assembly, and described many group electric-heating assemblies are inter-module series, parallel or connection in series-parallel Hybrid connections.Utilize PTC (positive temperature coefficient) temperature sensitive member electrical resistance temperature to raise and increase and there is the performance of switching characteristic, hot producing element of the present invention being played to the function of limit temperature or overtemperature protection.
Described temperature sensitive member also can adopt the temperature sensitive member insulated with described hot producing element, there is temperature sensor signal output function, metallic thermocouple temperature sensitive member and/or metal fever resistance temperature sensitive member and/or conductor temperature sensing element and/or temperature, pressure type temperature sensitive member and/or temperature deformation type temperature sensitive member etc. can be adopted in the present invention.Export to control device by temperature sensor signal, hot producing element of the present invention is played to the effect of temperature control and/or overtemperature protection and/or Temperature displaying.
One or more heat radiation working faces can be had as heat dissipation element of the present invention; The surface configuration of the described austenite ferrite type corrosion resistant plate as heat dissipation element can be plane, curved surface etc., and profile can be square, circular, tubulose and other three-dimensional shape etc.
Simple manufacturing process and method as follows: put one or more layers glass ceramics base multiphase composite ceramic raw cook on described austenite ferrite type corrosion resistant plate surface, part or all of glass ceramics base multiphase composite ceramic raw cook studs with frame, a slice glass ceramics base multiphase composite ceramic raw cook is wherein embedded with described hot producing element as electrothermal alloy paillon foil, in this process, through general degreasing, binder removal operation, (general pressure >=2.0MPa under pressure state, ≤ 6.0MPa), sinter through one or many, there is physical-chemical reaction and form laminated glazing ceramic base multiphase composite, in sintering process, each interelement is formed with chemistry and/or physical bond respectively, in conjunction with form mainly contain element or the counterdiffusion of molecule phase and/or the sealed and/or chemical bonds of machinery, glass ceramics base multiphase composite ceramic respectively with austenite ferrite type corrosion resistant plate, described hot producing element and the temperature control component arranged as required, between temperature sensitive member, strong bonded together, also be closely linked between each adjacent layer glass ceramics base multiphase composite ceramic.
Described glass ceramics base multiphase composite ceramic raw cook is glass ceramics base multiphase composite ceramic slurry through curtain coating or rolls film or other moulding process is made.
Sinter under pressure state because the present invention adopts, reduce sintering temperature, reduce the energy resource consumption of manufacture process simultaneously, also substantially increase product quality and qualification rate and production efficiency, reduce production cost, energy-saving and emission-reduction.
Austenite ferrite type corrosion resistant plate itself of the present invention can be exactly one or more heating work faces of the container body of electrical heated appliance.
The container body of the technique that the present invention can cast and low-melting-point metal combines, and makes electrical heated appliance.
The present invention also can combine with welding, the method for machinery and/or the container body of bonding technique and electrical heated appliance respectively, makes electrical heated appliance.
Corrosion-resistant fever tablet provided by the present invention is a kind of language function functionally gradient material (FGM) concept, using austenite ferrite type corrosion resistant plate as heat radiation working face provide strength support, using laminated glazing ceramic base multiphase composite as heat conduction, insulating material, built-in hot producing element and as required set temperature are responded to, control element, under pressure state, adopt the heater element that sintering technology is made.
Owing to adopting technical scheme of the present invention, laminated glazing ceramic base multiphase composite of the present invention, described austenite ferrite type corrosion resistant plate, bond strength between described hot producing element is high, both there is the Novel sheet electric heater thermal inertia in recent years occurred little, the uniform advantage of heating surface, there is again traditional electrical heat pipe-type heater heat-resistant impact ability strong, the strong point that cost is low, the decay resistance at high operating temperatures of the present invention is simultaneously strong, temperature controls highly sensitive, overtemperature protection is swift in response, long service life, substantially increase food safety and sanitation performance.And power density of the present invention is large, the heat efficiency is high, and unit volume area of dissipation is large, and planform and power density designs flexibility greatly, do not consume the heavy metal such as non-ferrous metal, lead and noble metal, environmental protection and energy saving.In industry and household electrical appliance, low temp. electric heating art has wide practical use.
Accompanying drawing explanation
Fig. 1 is the sectional elevation of the corrosion-resistant fever tablet embodiment of collar plate shape provided by the present invention.
Embodiment
With reference to accompanying drawing 1.What the present embodiment provided is the corrosion-resistant fever tablet of collar plate shape, it comprises austenite ferrite type corrosion resistant plate 21, on described austenite ferrite type corrosion resistant plate 21, sintering has by 4 layers of glass ceramics base multiphase composite ceramic 22-1, 22-2, 22-3, the laminated glazing ceramic base multiphase composite that 22-4 is formed, namely axial stratiform is combined into, layered glass ceramics base multiphase composite ceramic is with frame 22-3-1, 22-4-1, it is peripheral that frame 22-3-1 is in glass ceramics base multiphase composite ceramic layer 22-3, it is peripheral that frame 22-4-1 is in glass ceramics base multiphase composite ceramic layer 22-4, described austenite ferrite type corrosion resistant plate 21 has flange 21-1, flange 21-1 constitutes the frame being in outermost, thus with frame 22-3-1, 22-4-1 is combined into the radial stratiform frame of glass ceramics base multiphase composite ceramic, frame 22-3-1, 22-4-1 is combined into again the axial stratiform frame of glass ceramics base multiphase composite ceramic, glass ceramics base multiphase composite ceramic 22-3 is embedded with the electrothermal alloy paillon foil 23 as described hot producing element.
Simple manufacturing process is as follows: (with reference to figure 1)
The glass ceramics base multiphase composite ceramic raw cook of glass ceramics base multiphase composite ceramic layer 22-1,22-2,22-3,22-4 is put at the non-heat radiation working face of the austenite ferrite type corrosion resistant plate with flange as heat dissipation element working panel, wherein, the glass ceramics base multiphase composite ceramic raw cook of glass ceramics base multiphase composite ceramic layer 22-3,22-4 has studded with frame 22-3-1,22-4-1; Glass ceramics base multiphase composite ceramic 22-3 is embedded with the electrothermal alloy paillon foil 23 as hot producing element.
In this process, through the operation such as degreasing, binder removal, (general pressure >=2.0MPa under pressure state again, ≤ 6.0MPa), sinter through one or many, glass ceramics base multiphase composite ceramic layer 22-1 is diffused in the capillary porosity on austenite ferrite type corrosion resistant plate 21 surface, glass ceramics base multiphase composite ceramic layer 22-3 infiltrates in the capillary porosity on electrothermal alloy paillon foil 23 surface, form chemistry and/or physical bond respectively, in conjunction with form be mainly element or the counterdiffusion of molecule phase and/or the sealed and/or chemical bonds of machinery; Interpenetrate between each adjacent layer glass ceramics base multiphase composite ceramic, combine.As between the austenite ferrite type corrosion resistant plate of heat dissipation element and glass ceramics base multiphase composite ceramic, between electrothermal alloy paillon foil 23 with glass ceramics base multiphase composite ceramic layer 22-3 together with strong bonded, also combine closely between each layer glass ceramics base multiphase composite ceramic, make a kind of novel electric heater, i.e. the corrosion-resistant fever tablet of unidirectional heat radiation collar plate shape.
Between the described austenite ferrite type corrosion resistant plate 21 as heat dissipation element and glass ceramics base multiphase composite ceramic 22-1, between electrothermal alloy paillon foil 23 and glass ceramics base multiphase composite ceramic 22-3, there is the thermal coefficient of expansion matched, simultaneously, between each layer glass ceramics base multiphase composite ceramic, also there is the thermal coefficient of expansion matched, to adapt to change as the temperature gradient between the electrothermal alloy paillon foil and austenite ferrite type corrosion resistant plate 21 of hot producing element.
Described in the present embodiment as the laminated glazing ceramic base multiphase composite of insulation component owing to adopting pressure sintering, improve material compactness, eliminate the crack defect in glass ceramics base multiphase composite ceramic body as far as possible; Add as particle (nano particle and/or micron particles) and/or whisker and/or fiber and/or silk and/or sheet and/or the reinforcement such as net and/or braid in glass ceramics base multiphase composite ceramic; Adopt yttria stabilizator and/or the Strengthening and Toughening mode such as crystal whisker toughened and/or fiber reinforced; Adopt the technical measures such as the laminated glazing ceramic base multiphase composite insulating barrier of band frame, there are stronger thermal shock resistance and insulation property.
The electrothermal alloy paillon foil of the present embodiment is that Aludirome material is made, and has good toughness, is shaped by electrothermal alloy section bar by physics or chemical method.The traditional electrical hot material that electrothermal alloy paillon foil is a kind of maturation, reliability is high, cost is low, thermal shock resistance is strong, is widely used in traditional electrical heating elements.
The present embodiment is unidirectional heat radiation collar plate shape fever tablet, its electrode 23 is by centered by the center of circle, pass laminated glazing ceramic base multiphase composite in the scope of diameter≤40mm to be connected with power supply or the element such as temperature control, warming, in the scope of the non-heat radiation working face central diameter≤40mm of collar plate shape fever tablet, can be used for mounting temperature sensor.
The present embodiment has the advantage that under heated condition, decay resistance is strong, heating surface is even, thermal inertia is little, heat-resistant impact ability is strong, unit volume heating surface (area) (HS is large, cost performance is high, has a wide range of applications in industry and household electrical appliance in the gas of low temp. electric heating art, liquid, foods heat unit.
Claims (10)
1. corrosion-resistant fin, it is characterized in that it comprises the austenite ferrite type corrosion resistant plate as heat dissipation element and the laminated glazing ceramic base multiphase composite as insulation component, be closely linked between the described austenite ferrite type corrosion resistant plate as heat dissipation element and the described laminated glazing ceramic base multiphase composite as insulation component.
2. corrosion-resistant fin as claimed in claim 1, it is characterized in that the described laminated glazing ceramic base multiphase composite as insulation component has one or the combination in any of following reinforcement: particle, whisker, fiber, sheet, silk, net, braid, its material is metal and/or inorganic material.
3. corrosion-resistant fin as claimed in claim 1, is characterized in that there is aluminium oxide (Al in the tissue of the described laminated glazing ceramic base multiphase composite as insulation component
2o
3), silicon dioxide (SiO
2); Quartz crystal and/or Cristobalitkristall is had in the crystalline phase of the described laminated glazing ceramic base multiphase composite as insulation component.
4. corrosion-resistant fin as claimed in claim 1, it is characterized in that between the described austenite ferrite type corrosion resistant plate as heat dissipation element and the described laminated glazing ceramic base multiphase composite as insulation component, between described hot producing element and the described laminated glazing ceramic base multiphase composite as insulation component, defined the combination of chemistry and/or physics by pressure sintering, in conjunction with mode be element or the counterdiffusion of molecule phase and/or the sealed and/or chemical bonds of machinery.
5. corrosion-resistant fever tablet, it is characterized in that it comprises as the austenite ferrite type corrosion resistant plate of heat dissipation element, as the laminated glazing ceramic base multiphase composite of insulation component, hot producing element, between the described austenite ferrite type corrosion resistant plate as heat dissipation element and the described laminated glazing ceramic base multiphase composite as insulation component, be closely linked between the described laminated glazing ceramic base multiphase composite as insulation component and described hot producing element.
6. corrosion-resistant fever tablet as claimed in claim 5, is characterized in that described austenite ferrite type corrosion resistant plate is austenite ferrite type corrosion resistant plate composite plate.
7. corrosion-resistant fever tablet as claimed in claim 5, it is characterized in that the described laminated glazing ceramic base multiphase composite as insulation component has one or the combination in any of following reinforcement: particle, whisker, fiber, sheet, silk, net, braid, its material is metal and/or inorganic material.
8. corrosion-resistant fever tablet as claimed in claim 5, is characterized in that there is aluminium oxide (Al in the tissue of the described laminated glazing ceramic base multiphase composite as insulation component
2o
3), silicon dioxide (SiO
2); Quartz crystal and/or Cristobalitkristall is had in the crystalline phase of the described laminated glazing ceramic base multiphase composite as insulation component.
9. corrosion-resistant fever tablet as claimed in claim 5, it is characterized in that between the described austenite ferrite type corrosion resistant plate as heat dissipation element and the described laminated glazing ceramic base multiphase composite as insulation component, between described hot producing element and the described laminated glazing ceramic base multiphase composite as insulation component, defined the combination of chemistry and/or physics by pressure sintering, in conjunction with mode be element or the counterdiffusion of molecule phase and/or the sealed and/or chemical bonds of machinery.
10. corrosion-resistant fever tablet as claimed in claim 5, is characterized in that described hot producing element is electrothermal alloy paillon foil and/or lectrothermal alloy wire electric heating element.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210089912.1A CN103369745B (en) | 2012-03-30 | 2012-03-30 | Corrosion-resistant fin and corrosion-resistant fever tablet |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210089912.1A Division CN103369745B (en) | 2012-03-30 | 2012-03-30 | Corrosion-resistant fin and corrosion-resistant fever tablet |
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|---|---|
| CN105050211A true CN105050211A (en) | 2015-11-11 |
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| CN201210089912.1A Expired - Fee Related CN103369745B (en) | 2012-03-30 | 2012-03-30 | Corrosion-resistant fin and corrosion-resistant fever tablet |
| CN201510401044.XA Pending CN105050211A (en) | 2012-03-30 | 2012-03-30 | Corrosion-resistant heat dissipation sheet and corrosion-resistant heat emitting sheet |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210089912.1A Expired - Fee Related CN103369745B (en) | 2012-03-30 | 2012-03-30 | Corrosion-resistant fin and corrosion-resistant fever tablet |
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| CN (2) | CN103369745B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851871A (en) * | 2017-01-13 | 2017-06-13 | 杭州格拉思康科技有限公司 | Ceramic layered heating |
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| CN102076126A (en) * | 2010-01-07 | 2011-05-25 | 张鸿鸣 | Metal base plate glass ceramic electric heater and electrical heating appliance |
| CN202143231U (en) * | 2011-07-06 | 2012-02-08 | 张鸿鸣 | Metal substrate electric heating sheet |
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| US5049981A (en) * | 1990-10-19 | 1991-09-17 | At&T Bell Laboratories | Heat sink for electronic circitry |
| CN201141639Y (en) * | 2007-11-16 | 2008-10-29 | 梁新球 | Electric furnace heating plate |
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- 2012-03-30 CN CN201210089912.1A patent/CN103369745B/en not_active Expired - Fee Related
- 2012-03-30 CN CN201510401044.XA patent/CN105050211A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102076126A (en) * | 2010-01-07 | 2011-05-25 | 张鸿鸣 | Metal base plate glass ceramic electric heater and electrical heating appliance |
| CN201919178U (en) * | 2010-01-07 | 2011-08-03 | 张鸿鸣 | Electric heating appliance and glass ceramic electric heater with metal substrate |
| CN202143231U (en) * | 2011-07-06 | 2012-02-08 | 张鸿鸣 | Metal substrate electric heating sheet |
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| 黄勇等: "《高性能多相复合陶瓷》", 29 February 2008, 清华大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851871A (en) * | 2017-01-13 | 2017-06-13 | 杭州格拉思康科技有限公司 | Ceramic layered heating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103369745A (en) | 2013-10-23 |
| CN103369745B (en) | 2015-09-02 |
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Application publication date: 20151111 |