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Thermal-insulation material and preparation method thereof

A thermal insulation material and powder technology, applied in the field of thermal insulation material and its preparation, can solve problems such as product burns, achieve product filling, good performance, and improve quality

Active Publication Date: 2019-04-12
ZHENGZHOU HAOCHENG SUPERHARD TOOL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a thermal insulation material to solve the problem in the prior art that products synthesized in a composite pressure transmission medium in a high temperature and high pressure environment are easily burned by thermal radiation

Method used

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  • Thermal-insulation material and preparation method thereof
  • Thermal-insulation material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The insulation material of this embodiment is prepared by the following steps:

[0031] ①Batching: each component is taken by weighing according to the following weight ratio: sodium chloride: 65%. Magnesium oxide: 30%, graphite powder: 5%;

[0032] 2. Mixing: mix the materials in step 1. evenly, then pour the sum of each component into 5% polyvinyl alcohol aqueous solution (mass percentage) with a concentration of 8%, and continue mixing and grinding for 10 minutes;

[0033] ③Granulation: granulate the material obtained in step ②;

[0034] ④Compressing: Press and shape the granulated material in step ③ on a hydraulic press to obtain a semi-finished product;

[0035] ⑤Heat treatment: put the semi-finished product into a vacuum furnace for heat treatment, the heat treatment temperature is 680°C, and the vacuum degree is 10 - 3 MPa, the treatment time is 1 hour, and then cooled to room temperature with the furnace to obtain the finished product.

[0036] Using this m...

Embodiment 2

[0039] The high-efficiency thermal insulation liner of this embodiment is prepared by the following steps:

[0040] 1. Ingredients: each component is weighed according to the following weight ratio: sodium chloride: 80%. Zirconia: 10%, graphite powder: 10%;

[0041] 2. Mixing: mix the materials in step 1. evenly, then pour the sum of each component into 5% polyvinyl alcohol aqueous solution (mass percentage) with a concentration of 8%, and continue mixing and grinding for 10 minutes;

[0042] ③Granulation: granulate the material obtained in step ②;

[0043] ④Compressing: Press and shape the granulated material in step ③ on a hydraulic press to obtain a semi-finished product;

[0044] ⑤Heat treatment: put the semi-finished product into a vacuum furnace for heat treatment, the heat treatment temperature is 680°C, and the vacuum degree is 10 - 3 MPa, the treatment time is 1 hour, and then cooled to room temperature with the furnace to obtain the finished product.

[0045] Us...

Embodiment 3

[0048] The high-efficiency thermal insulation liner of this embodiment is prepared by the following steps:

[0049] ①Batching: each component is weighed according to the following weight ratio: sodium chloride: 70%. Magnesium oxide: 20%, graphite powder: 8%, aluminum powder 2%;

[0050] 2. Mixing: mix the materials in step 1. evenly, then pour the sum of each component into 5% polyvinyl alcohol aqueous solution (mass percentage) with a concentration of 8%, and continue mixing and grinding for 10 minutes;

[0051] ③Granulation: granulate the material obtained in step ②;

[0052] ④Compressing: Press and shape the granulated material in step ③ on a hydraulic press to obtain a semi-finished product;

[0053] ⑤Heat treatment: put the semi-finished product into a vacuum furnace for heat treatment, the heat treatment temperature is 680°C, and the vacuum degree is 10 - 3 MPa, the treatment time is 1 hour, and then cooled to room temperature with the furnace to obtain the finished ...

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Abstract

The invention relates to the technical field of high-temperature high-pressure synthesis, and in particular relates to a thermal-insulation material and a preparation method thereof. The thermal-insulation material comprises the following raw materials: base powder and a polyvinyl alcohol aqueous solution, wherein the base powder comprises the following components: 65%-80% of sodium chloride, 10%-30% of magnesium oxide or zirconium oxide, and 3%-12% of graphite powder. The thermal-insulation material is prepared by the steps of weighing the raw material components according to above weight ratios, performing mixing and performing pressing. The thermal-insulation material provided by the invention has good thermal insulation and insulation performance, and can effectively solve the problemthat the product synthesized in a high-temperature high-pressure environment in the prior art is easily burned by heat radiation.

Description

technical field [0001] The invention relates to the technical field of high temperature and high pressure synthesis, in particular to a thermal insulation material and a preparation method thereof. Background technique [0002] In the process of synthesizing diamond products by high temperature and high pressure static pressure method, in order to make the pressure on the solid sample as close as possible to the hydrostatic pressure, generally the sample is not directly squeezed by the top hammer of the press, but the sample is processed through the solid sealing pressure transmission medium. Indirect pressure. The sealing pressure transmission medium needs to create a suitable physical environment for the conversion of graphite to diamond and the growth between diamond and diamond. Therefore, the sealing pressure transmission medium must have the functions of sealing, pressure transmission, heat insulation and insulation at the same time. A well-sealed pressure transmissio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B30/00
CPCC04B30/00C04B2201/32C04B2201/20C04B14/36C04B14/024C04B14/304C04B24/2623C04B14/306C04B14/34
Inventor 王恒陈强花波波张钲
Owner ZHENGZHOU HAOCHENG SUPERHARD TOOL
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