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

High-precision and high-strength ceramic hand mold and preparation method thereof

A high-strength, high-precision technology, applied in ceramic molding machines, clay preparation devices, chemical instruments and methods, etc., can solve the problems of affecting the dimensional accuracy of gloves, multiple trimming and wiping, and complicated production processes, and improve production. Efficiency and artificial error, resistance to repeated extreme cold and extreme heat, strong thermal stability

Active Publication Date: 2022-03-22
LIAONING SILICATE RES INST
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a high-precision, high-strength ceramic hand mold and its preparation method to solve the problem of large shrinkage in the production process of clay hand molds in the past , affect the dimensional accuracy of the later glove production, and in the production process, it needs to be repaired and wiped many times, and the production process is complicated.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-precision and high-strength ceramic hand mold and preparation method thereof
  • High-precision and high-strength ceramic hand mold and preparation method thereof
  • High-precision and high-strength ceramic hand mold and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A high-precision, high-strength ceramic hand mold is specifically prepared according to the following method:

[0034] a) Mixing of main ingredients: by weight, take 20 parts of 20-50 mesh white corundum powder, 30 parts of 120 mesh white corundum powder, 25 parts of 5 μm α-alumina powder, 21 parts of 0.5 μm α-alumina powder, and 4 parts of high aluminate cement 2 parts, sent to the non-gravity mixing equipment, start mixing for 10 minutes, after mixing the raw materials evenly, add 0.8 parts of sodium polyacrylate and 7 parts of water, start mixing for 15 minutes, and wait for the raw materials to form a paste-like slurry before use;

[0035] b) Vacuum stirring and defoaming: send the paste slurry into a vacuum mixer, start vacuum stirring, the vacuum degree needs to reach -0.09Mpa, and the vacuum stirring time is 15 minutes. After removing the air bubbles in the paste slurry, seal it for storage. stand-by;

[0036] c) Mold opening: the mold is divided into an inner c...

Embodiment 2

[0044] A high-precision, high-strength ceramic hand mold is specifically prepared according to the following method:

[0045] a) Mixing of main ingredients: by weight, take 23 parts of 20-50 mesh white corundum powder, 27 parts of 120 mesh white corundum powder, 30 parts of 5 μm α-alumina powder, 12 parts of 0.5 μm α-alumina powder, and 8 parts of high aluminate cement 1 part, put it into the gravity-free mixing equipment, start mixing for 15 minutes, mix the raw materials evenly, add 1 part of sodium polyacrylate and 7 parts of water, start mixing for 15 minutes, and wait for the raw materials to form a paste-like slurry before use;

[0046] b) Vacuum stirring and defoaming: send the paste slurry into a vacuum mixer, start vacuum stirring, the vacuum degree needs to reach -0.09Mpa, and the vacuum stirring time is 20 minutes. After removing the air bubbles in the paste slurry, seal it for storage. stand-by;

[0047] c) Mold opening: The mold is divided into an inner core and ...

Embodiment 3

[0055] A high-precision, high-strength ceramic hand mold is specifically prepared according to the following method:

[0056] a) Mixing of main ingredients: by weight, take 27 parts of 20-50 mesh white corundum powder, 23 parts of 120 mesh white corundum powder, 35 parts of 5 μm α-alumina powder, 3 parts of 0.5 μm α-alumina powder, 12 parts of high aluminate cement 1.2 parts of sodium polyacrylate and 7 parts of water, and then start mixing for 15 minutes. After the raw materials form a paste-like slurry, it is ready to use;

[0057] b) Vacuum stirring and defoaming: send the paste slurry into a vacuum mixer, start vacuum stirring, the vacuum degree needs to reach -0.09Mpa, and the vacuum stirring time is 30 minutes. After removing the air bubbles in the paste slurry, seal it for storage. stand-by;

[0058] c) Mold opening: The mold is divided into an inner core and a jacket according to the structure, wherein the jacket mold is made of polyurethane material, and the inner co...

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

No PUM Login to View More

Abstract

The invention discloses a high-precision and high-strength ceramic hand mold and a preparation method thereof.White corundum and alpha alumina powder are adopted as raw materials for manufacturing the hand mold, although the cost of the raw materials is relatively high, a forming mold is made of polyurethane and paraffin, and therefore the links of wiping and fettling after a plaster mold is formed are avoided; the raw materials are all raw materials subjected to high-temperature treatment, and after the product is sintered, the shrinkage is almost zero, so that the sintering precision of the product can be effectively guaranteed; meanwhile, the heat stability of the raw materials is extremely high, the repeated extremely cold and extremely hot phenomenon in the glove production process can be effectively resisted, and the use frequency of the ceramic hand mold is greatly increased; according to the preparation method, the links such as wiping and fettling in the production process of a traditional clay ceramic hand mold are eliminated, and the production efficiency and the manual error of the product are greatly improved.

Description

technical field [0001] The invention relates to the technical field of hand molds for making PVC gloves and nitrile gloves, in particular to high-precision, high-strength ceramic hand molds and a preparation method thereof. Background technique [0002] Ceramic hand molds are mainly used in the molding process of PVC gloves and nitrile gloves. The control of dimensional accuracy and surface finish of ceramic hand molds directly affect the size and appearance quality of gloves. [0003] At present, domestic ceramic hand molds are mainly made of clay material as the main raw material, which is prepared by high-temperature sintering of plaster molds by grouting. Although the raw material cost of this process is extremely low, since the clay material needs to trim and wipe the molded body in the process of making ceramic hand molds, this step will consume a lot of labor and cannot guarantee the qualified rate of the product; There is a large shrinkage during the firing process,...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/10C04B35/622B29C41/40B28C5/00B28B1/087B28B7/38B28B13/06B28B11/24
CPCC04B35/10C04B35/622B29C41/40B28C5/003B28B1/0873B28B7/384B28B13/06B28B11/243C04B2235/5436C04B2235/5445C04B2235/96
Inventor 张挽邱宏金鑫侯振鹤刘严崔思文
Owner LIAONING SILICATE RES INST
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