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Ceramic hand model suitable for acrylonitrile butadiene glove production and its making method

A technology of nitrile rubber and hand molding, which is applied in applications, household components, household appliances, etc., can solve the problems of low production pass rate, poor thermal shock resistance, high shrinkage rate, etc., and achieve high product pass rate and acid resistance Strong alkali corrosion and the effect of increasing the number of thermal shocks

Inactive Publication Date: 2008-07-09
姜国庆 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] SiO in the chemical composition of the ceramic hand mold produced by the existing raw material formula 2 The content of silicon is generally greater than 60%, which is a high-silicon ceramic hand mold, and has the following disadvantages: 1) The pass rate of the product is low, about 85%; 2) The total shrinkage rate of the product is high, 13-18%; 3 ) The surface of the product is uneven, with concave-convex shallow pits, black spots, etc.; 4) The service life is short, and the online service life of the ceramic hand mold produced by the prior art is generally 3 months in the production of nitrile rubber gloves; 5) Thermal shock resistance Sex is not strong

Method used

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  • Ceramic hand model suitable for acrylonitrile butadiene glove production and its making method

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Experimental program
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Effect test

Embodiment 1

[0035] Raw material formula: 7% of quartz, 12% of feldspar, 45% of cooked Datong soil, 16% of Fangzi soil, 2% of Suzhou soil, 10% of cooked bauxite, 8% of cooked talc; according to the formula, send it into the ball mill Add water and grind for 38h-40h to make mud; the mud passes through a 300-mesh vibrating screen to make mud with a fineness of 300 mesh, and then puts it into a mud filter machine after iron removal by a permanent magnet iron remover, and separates it with an industrial filter cloth in the mud machine Make the mud cake; add appropriate amount of water to the mud cake and stir, and add soda ash and water glass according to the weight ratio of 0.3%-0.5%, and beat it into mud. The specific gravity of the mud is 1.7g / cm 3 -1.8g / cm 3, and then after the second iron removal treatment, the mud is stale for 24 hours after secondary screening with a 200-260-mesh vibrating screen, and then pumped into a high-level storage tank; pressure grouting, and then the hand mold ...

Embodiment 2

[0037] Preparation method is identical with embodiment 1.

[0038] Raw material formula: 8% quartz, 22% feldspar, 32% cooked Datong soil, 10% Fangzi soil, 3% Suzhou soil, 20% cooked bauxite, 5% cooked talc. The weight content of the chemical components of the finished ceramic hand touch is: SiO 2 55.42%, Al 2 o 3 37.83%, Fe 2 o 3 0.25%, TiO 2 0.41%, CaO 0.44%, MgO 0.48%, K 2 O 3.85%, Na 2 O 1.60%, loss on ignition 1.00%. The total shrinkage of the hand mold was 8%.

Embodiment 3

[0040] Preparation method is identical with embodiment 1.

[0041] Raw material formula: 6% of quartz, 16% of feldspar, 40% of cooked Datong soil, 4% of Fangzi soil, 2% of Suzhou soil, 30% of cooked bauxite, and 2% of cooked talc. The weight content of the chemical components of the finished ceramic hand touch is: SiO 2 3 1.50%, Al 2 o 3 58%, Fe 2 o 3 0.37%, TiO 2 0.25%, CaO 0.34%, MgO 0.52%, K 2 O 2.58%, Na 2 O 1.57%, loss on ignition 4.87%. The total shrinkage of the hand mold was 6%.

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Abstract

The invention relates to a ceramic fingerprint for nitrile rubber glove, which comprises: 6-8% quartz, 12-22% feldspar, 32-45% mellow Datong clay, 4-16% Fangzi clay 2-3% Suzhou clay, 10-30% calcined bauxite with 85-88% Al2O3, and 2-9% mellow talcum. Wherein, the used vibrating screen is 300-600 items with sintering temperature as 1320-1370DEG C; the product has SiO2 less than 60% and 30-58% Al2O3 with total shrinkage with 6-13%.

Description

technical field [0001] The invention belongs to an impregnated ceramic hand mold for producing plastic gloves, in particular to a ceramic hand mold suitable for the production of nitrile rubber gloves. Background technique [0002] The hand mold is a hand mold used to produce plastic gloves by dipping method. The production process of various liquid-formed plastic gloves is: dip the plastic liquid material on the ceramic hand mold, dry and demould. The hand molds used in production should be acid-resistant, alkali-resistant, chemical-resistant, and have a certain thermal shock resistance. Various liquid materials have different requirements for the corrosion resistance of ceramic hand molds. Among them, the requirements for ceramic hand molds with nitrile rubber gloves are the most stringent: after each hand mold is used, it must first pass through an acidic washing solution with a pH of 3. After spray cleaning, it is then sprayed with an alkaline lotion with a pH of 10.5,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/13C04B33/32C04B35/14C04B35/10B29C33/38B29K19/00B29L31/48
Inventor 姜国庆姜璐
Owner 姜国庆
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