Porcelain enamel glaze for acid-resistant cast iron sanitary ware

A technology for sanitary ware and acid-resistant cast iron, applied in the field of enamel glaze, can solve the problems of easy cracking, difficult cleaning and poor chemical stability of the enamel glaze layer, and achieve the effects of improving acid-resistant chemical stability, reducing the thickness of the porcelain layer, and improving process performance.

Inactive Publication Date: 2007-09-19
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems of current cast iron sanitary ware enamel are: 1. For cast iron sanitary ware enamel with good acid resistance and chemical stability, such as antimony oxide opalescent cast iron sanitary ware enamel, the firing temperature is relatively high and the process performance is poor , the fired enamel glaze layer is easy to crack and explode; 2. The cast iron sanitary ware enamel with better process performance, such as: zirconia milky white cast iron sanitary ware enamel, has poor chemical stability, is easy to stain...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0009] Weigh the qualified chemical and mineral raw materials according to the formula, mix them thoroughly, put them in a crucible, and melt them at 1100~1200℃. After the raw materials are melted, stir manually for 3-5 minutes. Then, the molten material is poured into cold water to be quenched into enamel frit, taken out, and dried in an oven to obtain acid-resistant cast iron sanitary ware enamel A and B.

[0010] In the formula A enamel glaze, introduce nano SiO 2 2.5%, nano ZrO 2 0.2%, then ball mill for 2 hours, and finally pass through a 150-mesh sieve, for use; in B enamel glaze, introduce the amount of nano SiO 2 3.0%, nano ZrO 2 It is 1.0%, then ball milled for 2 hours, and finally passed through a 150-mesh sieve for use.

[0011] Test items

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PUM

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Abstract

The invention discloses an enamel glaze for cast iron plumbing fittings with acid resistance, of which composition (wt.%) is: SiO2 40.0-60.0, Al2O3 0.1-5.0, B2O3 1.0-10.0, K2O 0.1-5.0, Na2O 6.0-17.0, Li2O 0.5-5.0, CaF2 1.5-7.0, Na2SiF6 2.0-6.0, Sb2O3 5.0-15.0, ZrO2 1.0-5.0, TiO2 1.0-10, PbO 0-8.0, CeO2 0.5-6.0, La2O3 0.3-5.0. The enamel glaze for cast iron plumbing fittings with acid resistance has a high chemical stability, a good processing property and a good opacifying capacity.

Description

Technical field [0001] The invention relates to an enamel glaze, more specifically to an enamel glaze for acid-resistant cast iron sanitary ware. Background technique [0002] Enamel glaze is a glass frit that is melted by a compound and then quenched by water. It is coated on a metal substrate and fired at a high temperature to become an enamel. The main problems of the current cast iron sanitary ware enamel glaze are: 1. Cast iron sanitary ware enamel glaze with good acid resistance and chemical stability, such as antimony oxide milky white cast iron sanitary ware enamel, has a relatively high firing temperature and poor process performance , The fired enamel glaze is easy to crack and explode; Second, the cast iron sanitary ware enamel with better process performance, such as: zirconia milky white cast iron sanitary ware enamel, has poor chemical stability, is easy to stain and difficult to clean. Affect the use effect of enamel glaze products. Cast iron sanitary ware enamel g...

Claims

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Application Information

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IPC IPC(8): C03C8/12C03C8/14
Inventor 钱蕙春蒋伟忠
Owner SHANGHAI INST OF TECH
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