Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing heating membrane for heat supply

A heating film and heating technology, applied in electric heating devices, ohmic resistance heating, electrical components, etc., can solve the problems of low electrothermal conversion rate, high temperature brittleness of heating film, low heating efficiency, etc., to improve insulation performance and high temperature strength. , The effect of enhancing surface elasticity and improving heating efficiency

Inactive Publication Date: 2019-11-15
唐振宇
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main technical problem to be solved by the present invention is to aim at the defects that when the heating film is applied to the electric heating film for heating, the electrothermal conversion rate is low, which leads to low heating efficiency, and the high temperature brittleness of the heating film is large during the long-term heating process, and irreparable brittle cracks will occur, providing A method for preparing heating film for heating

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of ceramic powder:

[0030]In parts by weight, add 70 parts of butyl titanate into a beaker containing 200 parts of ethylene glycol solution with a mass fraction of 25%, heat up to 80°C, add 40 parts of citric acid into the beaker, start the stirrer, Stir and disperse at a speed of 300r / min until the citric acid is completely dissolved to obtain a titanium dioxide precursor glue;

[0031] In parts by weight, 20 parts of neodymium oxide and 30 parts of lanthanum oxide are dissolved in 200 parts of nitric acid solution with a mass fraction of 30%, and 70 parts of the above-mentioned titanium dioxide precursor glue, 4 parts of calcium carbonate, and 6 parts of lithium carbonate are added , 40 parts of zirconia were mixed and placed in a water bath, heated to 80°C, kept for 2h, continued to heat up to 130°C, kept for 1h, to obtain a viscous complex;

[0032] Put the above-mentioned viscous complex into a coking furnace, feed in nitrogen, heat up to 230°C, heat-...

Embodiment 2

[0040] Preparation of ceramic powder:

[0041] In parts by weight, 75 parts of butyl titanate were added to a beaker containing 210 parts of ethylene glycol solution with a mass fraction of 25%, heated to 90°C, 42 parts of citric acid were added to the beaker, and the stirrer was started. Stir and disperse at a speed of 320r / min until the citric acid is completely dissolved to obtain a titanium dioxide precursor glue;

[0042] In parts by weight, 22 parts of neodymium oxide and 32 parts of lanthanum oxide are dissolved in 220 parts of nitric acid solution with a mass fraction of 30%, and 75 parts of the above-mentioned titanium dioxide precursor glue, 4 parts of calcium carbonate, and 6 parts of lithium carbonate are added , 45 parts of zirconia were mixed and placed in a water bath, heated to 82°C, kept for 2.5h, continued to heat up to 140°C, kept for 1.5h, to obtain a viscous complex;

[0043] Put the above-mentioned viscous complex into a coking furnace, feed nitrogen, he...

Embodiment 3

[0051] Preparation of ceramic powder:

[0052] In parts by weight, add 80 parts of butyl titanate into a beaker containing 220 parts of ethylene glycol solution with a mass fraction of 25%, heat up to 100°C, add 45 parts of citric acid into the beaker, and start the stirrer. Stir and disperse at a speed of 350r / min until the citric acid is completely dissolved to obtain a titanium dioxide precursor glue;

[0053] In parts by weight, 25 parts of neodymium oxide and 35 parts of lanthanum oxide are dissolved in 250 parts of nitric acid solution with a mass fraction of 30%, and 80 parts of the above-mentioned titanium dioxide precursor glue, 5 parts of calcium carbonate, and 7 parts of lithium carbonate are added , 50 parts of zirconia were mixed and placed in a water bath, heated to 85°C, kept for 3h, continued to heat up to 150°C, kept for 2h, to obtain a viscous complex;

[0054] Put the above-mentioned viscous complex into a coking furnace, feed in nitrogen, heat up to 250°C,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing a heating membrane for heat supply and belongs to the technical field of electric heating material preparation. According to the method, graphite is adopted as a doping component of the inner layer of a heating membrane, and then the heat conductivity of the inner layer of the hating membrane can be improved; as zirconium oxide is adopted as a main component of the outer layer of the heating membrane, a ceramic heating membrane has a certain high-temperature anti-oxidation capability primarily; due to adoption of a rare-earth metal, the electricalresistivity and the high-temperature strength of a ceramic can be improved, the service life of the heating membrane can be prolonged, and in addition, the high-temperature heat conductivity and theheating efficiency of the heating membrane can be improved; molybdenum and silicon of molybdenum disilicide in the slurry of the inner layer of the heating membrane disclosed by the invention are combined through metal bonds, silicon and silicon are connected through covalent bonds, and the slurry is a gray tetragonal crystal and has a good high-temperature anti-oxidation capability; in the outerlayer of the heating membrane, namely an insulating layer, a rare-earth ceramic forms a protection membrane layer on the surface of molybdenum disilicide, so that the consequence that an anti-oxidation effect is lost as the molybdenum disilicide is continuously oxidized can be prevented, and a high electric heating conversion rate of the inner layer of the heating membrane can be maintained.

Description

technical field [0001] The invention discloses a method for preparing a heating film for heating, and belongs to the technical field of electrothermal material preparation. Background technique [0002] The heating film is a kind of film that can generate heat after being energized. It is a planar heating element composed of an electrical insulating material and a heating resistance material packaged in it. Heating film is divided into: radiant heating film, which converts electrical energy into heat energy during work, and transfers heat energy to the outside in the form of radiation, flexible heating film, heating film whose electrical insulating material is a flexible sheet, rigid heating film, electric The insulating material is a heat-generating film of a rigid sheet (or plate). [0003] The heating material and product structure of the heating film are the main factors that determine the performance of the heating film product, and the heating material plays a decisiv...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B35/52C04B35/622C04B41/87H05B3/34
CPCC04B35/522C04B35/622C04B41/009C04B41/5042C04B41/87C04B2235/349C04B2235/3826C04B2235/3891H05B3/34C04B41/4869
Inventor 唐振宇
Owner 唐振宇
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com