Scaling resistant ceramic glaze and functional overglaze for Q345 hot rolled alloy steel double sided enameling

Abstract

A scaling resistant ceramic glaze and a functional overglaze for Q345 hot rolled alloy steel double sided enameling. The components and the weight percentage of each component of the ground glaze of the enamel are as follows: 3-6% of Al.sub.2O.sub.3, 60-70% of SiO.sub.2; 10-15% of B.sub.2O.sub.3, 10-15% of Na.sub.2O+K.sub.2O+Li.sub.2O, 3-6% of CaF.sub.2, 3-6% of ZrO.sub.2, 2-5% of CoO+NiO, 1-3% of BaMoO.sub.4+Sb.sub.2O.sub.3, 0.3-1.5 of WO.sub.3. The ground glaze is prepared by formulating chemical raw materials in a weight ratio converted by the described chemical composition, stirring thoroughly and mixing uniformly, melting same in a rotary furnace at 1200-1350° C., and then quenching the melt. The provided scaling resistant ceramic glaze and functional overglaze for Q345 hot rolled alloy steel double sided enameling can be applied to Q345 steel that contains C, P, S and the like which are considered harmful elements and contains a variety of common alloy elements.

Claims

1. A method of using a scaling resistant enamel ground glaze for Q345 hot rolled alloy steel with double-side enamel, wherein the scaling resistant enamel ground glaze for Q345 hot rolled alloy steel with double-side enamel is ball-milled with grinding feed, barium molybdate, borax, nitrite, and antimony oxide to prepare a slurry, a bulk weight and an adhesion amount of resultant glaze slurry are adjusted, according to material type and product type, for immersion or powder spraying, wherein a firing temperature is controlled at 850-950° C., and a firing time is determined according to color, gloss and adherence of a ceramic surface; wherein the enamel ground glaze comprises components in a weight percentage: TABLE-US-00004 Al.sub.2O.sub.3 3-6% SiO.sub.2 60-70%  B.sub.2O.sub.3 10-15%  Na.sub.2O + K.sub.2O + Li.sub.2O 10-15%  CaF.sub.2 3-6% ZrO.sub.2 3-6% CoO + NiO 2-5% BaMoO.sub.4 + Sb.sub.2O.sub.3 1-3% WO.sub.3 0.3-1.5%;   the enamel ground glaze is prepared by formulating chemical raw materials in a weight ratio converted by the above chemical composition, stirring thoroughly and mixing uniformly, melting in a rotary furnace at 1200-1350° C., and then cold quenching.

2. The method of using the scaling resistant enamel ground glaze for Q345 hot rolled alloy steel with double-side enamel according to claim 1, wherein a thickness of a ceramic layer is controlled at 0.1-0.3 mm.

3. The method of using the scaling resistant enamel ground glaze for Q345 hot rolled alloy steel with double-side enamel according to claim 1, wherein a bulk weight for the immersion is controlled at 168-175 g/100 ml.

4. The method of using the scaling resistant enamel ground glaze for Q345 hot rolled alloy steel with double-side enamel according to claim 1, wherein the bulk weight for wet powder spraying is controlled at 162-168 g/100 ml.

Description

DETAILED DESCRIPTION OF EMBODIMENTS

(1) The embodiments of the present disclosure will be described below in detail in connection with examples. However, it will be understood by those skilled in the art that the examples described below are only intended to illustrate the present disclosure, but should not be considered as limiting the scope of the present disclosure. Where no particular conditions are specified, examples are carried out in accordance with conventional conditions or conditions recommended by the manufacturer. All of the reagents or instruments used, whose manufacturers are not specified, are conventional products that are commercially available.

Example 1

(2) A method for preparing a scaling resistant ground glaze for common Q345 hot rolled steel member with double-side enamel:

(3) The components and the weight percentage of each component of the enamel ground glaze are as follows: 3% of Al.sub.2O.sub.3, 62% of SiO.sub.2, 14% of B.sub.2O.sub.3, 11.7% of Na.sub.2O+K.sub.2O+Li.sub.2O, 3% of CaF.sub.2, 3% of ZrO.sub.2, 2% of CoO+NiO, 1% of BaMo.sub.4+Sb.sub.2O.sub.3, and 0.3% of WO.sub.3.

(4) The ground glaze is prepared by formulating chemical raw materials in a weight ratio converted by the foregoing chemical composition, stirring thoroughly and mixing uniformly, melting the same in a rotary furnace at 1200-1350° C., and then cold quenching the melt.

(5) A method of using the scaling resistant ground glaze for common Q345 hot rolled steel member with double-side enamel:

(6) The prepared enamel ground glaze and commonly used grinding feed, barium molybdate, borax, nitrite, antimony oxide, etc. are ball-milled according to different grinding ratios to prepare a slurry. The bulk weight and adhesion amount of the resultant glaze slurry are adjusted, according to different materials and different products, for immersion. The thickness of the ceramic layer is controlled at 0.2 mm, the firing temperature is controlled at 850-950° C., and the firing time is determined according to the color, gloss and adherence of the ceramic surface. The typical bulk weight of immersion is controlled at 168 (g/100 ml).

Example 2

(7) A method for preparing a scaling resistant ground glaze for common Q345 hot rolled steel member with double-side enamel:

(8) The components and the weight percentage of each component of the ground glaze for the enamel are as follows: 6% of Al.sub.2O.sub.3. 60% of SiO.sub.2, 10% of B.sub.2O.sub.3, 10% of Na.sub.2O+K.sub.2O+Li.sub.2O, 3.5% of CaF.sub.2, 3.5% of ZrO.sub.2, 2.5% of CoO+NiO, 3% of BaMoO.sub.4+Sb.sub.2O.sub.3, and 1.5% of WO.sub.3.

(9) The ground glaze is prepared by formulating chemical raw materials in a weight ratio converted by the foregoing chemical composition, stirring thoroughly and mixing uniformly, melting the same in a rotary furnace at 1200-1350° C., and then cold quenching the melt.

(10) A method of using the foregoing scaling resistant ground glaze for common Q345 hot rolled steel member with double-side enamel:

(11) The prepared enamel ground glaze and commonly used grinding feed, barium molybdate, borax, nitrite, antimony oxide, etc. are ball-milled according to different grinding ratios to prepare a slurry. The bulk weight and adhesion amount of the resultant glaze slurry are adjusted, according to different materials and different products, for powder spraying. The thickness of the ceramic layer is controlled at 0.3 mm, the firing temperature is controlled at 850-950° C., and the firing time is determined according to the color, gloss and adherence of the ceramic surface. The typical bulk weight for wet powder spraying is controlled at 162 (g/100 ml).

Example 3

(12) A method for preparing a scaling resistant ground glaze for common Q345 hot rolled steel member with double-side enamel:

(13) The components and the weight percentage of each component of the enamel ground glaze are as follows: 3% of Al.sub.2O.sub.3, 60% of SiO.sub.2, 11% of B.sub.2O.sub.3, 15% of Na.sub.2O+K.sub.2O+Li.sub.2O, 3% of CaF.sub.2, 3% of ZrO.sub.2, 2.5% of CoO+NiO, 2% of BaMoO.sub.4+Sb.sub.2O.sub.3, and 0.5% of WO.sub.3.

(14) The ground glaze is prepared by formulating chemical raw materials in a weight ratio converted by the foregoing chemical composition, stirring thoroughly and mixing uniformly, melting the same in a rotary furnace at 1200-1350° C., and then cold quenching the melt.

(15) A method of using the foregoing scaling resistant ground glaze for common Q345 hot rolled steel member with double-side enamel:

(16) The prepared enamel ground glaze and commonly used grinding feed, barium molybdate, borax, nitrite, antimony oxide, etc. are ball-milled according to different grinding ratios to prepare a slurry. The bulk weight and adhesion amount of the resultant glaze slurry are adjusted, according to different materials and different products, for immersion. The thickness of the ceramic layer is controlled at 0.1 mm, the firing temperature is controlled at 850-950° C., and the firing time is determined according to the color, gloss and adherence of the ceramic surface. The typical bulk weight for immersion is controlled at 175 (g/100 ml).

Example 4

(17) A method for preparing an alkali-resistant zirconium overglaze (A) for Q345 steel:

(18) The components and the weight percentage of each component of the alkali-resistant zirconium overglaze are as follows: 3% of Al.sub.2O.sub.3, 65% of SiO.sub.2, 8% of B.sub.2O.sub.3, 3% of SrO, 10% of Na.sub.2O+K.sub.2O+Li.sub.2O, 2% of Na.sub.2SiF.sub.6, 6% of ZrO.sub.2, and 3% of Cr.sub.2O.sub.3+MnO.sub.2.

(19) The alkali-resistant zirconium overglaze is prepared by formulating chemical raw materials in a weight ratio converted by the foregoing chemical composition, stirring thoroughly and mixing uniformly, melting the same in a rotary furnace at 1200-1350° C., and then cold quenching the melt.

(20) A method of using the foregoing alkali-resistant zirconium overglaze (A):

(21) Ceramic glaze and commonly used grinding feed, barium molybdate, borax, nitrite, antimony oxide, etc. are ball-milled according to different grinding ratios to prepare a slurry. The bulk weight and adhesion amount of the resultant glaze slurry are adjusted, according to different materials and different products, for immersion. The thickness of the ceramic layer is controlled at 0.1 mm, the reference temperature for firing is controlled at 820-880° C., and the firing time is determined according to the color, gloss and adherence of the ceramic surface.

Example 5

(22) A method for preparing an alkali-resistant zirconium overglaze (A) for Q345 steel:

(23) The components and the weight percentage of each component of the alkali-resistant zirconium overglaze are as follows: 2% of Al.sub.2O.sub.3, 57% of SiO.sub.2, 6% of B.sub.2O.sub.3, 4% of SrO, 14% of Na.sub.2O+K.sub.2O+Li.sub.2O, 5% of Na.sub.2SiF.sub.6, 10% of ZrO.sub.2, and 2% of Cr.sub.2O.sub.3+MnO.sub.2.

(24) The alkali-resistant zirconium overglaze is prepared by formulating chemical raw materials in a weight ratio converted by the foregoing chemical composition, stirring thoroughly and mixing uniformly, melting the same in a rotary furnace at 1200-1350° C., and then cold quenching the melt.

(25) A method of using the foregoing alkali-resistant zirconium overglaze (A):

(26) Ceramic glaze and commonly used grinding feed, barium molybdate, borax, nitrite, antimony oxide, etc. are ball-milled according to different grinding ratios to prepare a slurry. The bulk weight and adhesion amount of the resultant glaze slurry are adjusted, according to different materials and different products, for powder spraying. The thickness of the ceramic layer is controlled at 0.3 mm, the reference temperature for firing is controlled at 820-880° C., and the firing time is determined according to the color, gloss and adherence of the ceramic surface.

Example 6

(27) A method for preparing an alkali-resistant zirconium overglaze (A) for Q345 steel:

(28) The components and the weight percentage of each component of the alkali-resistant zirconium overglaze are as follows: 1% of Al.sub.2O.sub.3, 55% of SiO.sub.2, 5% of B.sub.2O.sub.3, 3% of SrO, 15% of Na.sub.2O+K.sub.2O+Li.sub.2O, 6% of Na.sub.2SiF.sub.6, 10% of ZrO.sub.2, and 5% of Cr.sub.2O.sub.3+MnO.sub.2.

(29) The alkali-resistant zirconium overglaze is prepared by formulating chemical raw materials in a weight ratio converted by the foregoing chemical composition, stirring thoroughly and mixing uniformly, melting the same in a rotary furnace at 1200-1350° C., and then cold quenching the melt.

(30) A method of using the foregoing alkali-resistant zirconium overglaze (A):

(31) Ceramic glaze and commonly used grinding feed, barium molybdate, borax, nitrite, antimony oxide, etc. are ball-milled according to different grinding ratios to prepare a slurry. The bulk weight and adhesion amount of the resultant glaze slurry are adjusted, according to different materials and different products, for powder spraying. The thickness of the ceramic layer is controlled at 0.2 mm, the reference temperature for firing is controlled at 820-880° C., and the firing time is determined according to the color, gloss and adherence of the ceramic surface.

Example 7

(32) A method for preparing an acid-resistant blue overglaze (AA) for Q345 steel:

(33) The components and the weight percentage of each component of the acid-resistant blue overglaze are as follows: 3% of Al.sub.2O.sub.3, 70% of SiO.sub.2, 5% of B.sub.2O.sub.3, 3% of SrO, 10% of Na.sub.2O+K.sub.2O+Li.sub.2O, 2% of Na.sub.2SiF.sub.6, 3% of ZrO.sub.2, 3% of TiO.sub.2, and 1% of CoO.

(34) The acid-resistant blue overglaze is prepared by formulating chemical raw materials in a weight ratio converted by the foregoing chemical composition, stirring thoroughly and mixing uniformly, melting the same in a rotary furnace at 1200-1350° C., and then cold quenching the melt.

(35) A method of using the acid-resistant blue overglaze (AA) for common Q345 hot rolled steel member with double-side enamel:

(36) Ceramic glaze and commonly used grinding feed, barium molybdate, borax, nitrite, antimony oxide, etc. are ball-milled according to different grinding ratios to prepare a slurry. The bulk weight and adhesion amount of the resultant glaze slurry are adjusted, according to different materials and different products, for powder spraying. The thickness of the ceramic layer is controlled at 0.3 mm, the firing temperature is controlled at 850-950° C., and the firing time is determined according to the color, gloss and adherence of the ceramic surface. The typical bulk weight for wet powder spraying is controlled at 168 (g/100 ml).

Example 8

(37) A method for preparing an acid-resistant blue overglaze (AA) for Q345 steel:

(38) The components and the weight percentage of each component of the acid-resistant blue overglaze are as follows: 3% of Al.sub.2O.sub.3, 63% of SiO.sub.2, 5% of B.sub.2O.sub.3, 3% of SrO, 14% of Na.sub.2O+K.sub.2O+Li.sub.2O, 2% of Na.sub.2SiF.sub.6, 3% of ZrO.sub.2, 6% of TiO.sub.2, and 1% of CoO.

(39) The acid-resistant blue overglaze is prepared by formulating chemical raw materials in a weight ratio converted by the foregoing chemical composition, stirring thoroughly and mixing uniformly, melting the same in a rotary furnace at 1200-1350° C., and then cold quenching the melt.

(40) A method of using the acid-resistant blue overglaze (AA) for common Q345 hot rolled steel member with double-side enamel:

(41) Ceramic glaze and commonly used grinding feed, barium molybdate, borax, nitrite, antimony oxide, etc. are ball-milled according to different grinding ratios to prepare a slurry. The bulk weight and adhesion amount of the resultant glaze slurry are adjusted, according to different materials and different products, for immersion. The thickness of the ceramic layer is controlled at 0.1 mm, the firing temperature is controlled at 850-950° C., and the firing time is determined according to the color, gloss and adherence of the ceramic surface. The typical bulk weight for immersion is controlled at 168 (g/100 ml).

Example 9

(42) A method for preparing an acid-resistant blue overglaze (AA) for Q345 steel:

(43) The components and the weight percentage of each component of the acid-resistant blue overglaze are as follows: 1% of Al.sub.2O.sub.3, 62% of SiO.sub.2, 6% of B.sub.2O.sub.3, 6% of SrO, 11% of Na.sub.2O+K.sub.2O+Li.sub.2O, 4% of Na.sub.2SiF.sub.6, 4% of ZrO.sub.2, 4% of TiO.sub.2, and 2% of CoO.

(44) The acid-resistant blue overglaze is prepared by formulating chemical raw materials in a weight ratio converted by the foregoing chemical composition, stirring thoroughly and mixing uniformly, melting the same in a rotary furnace at 1200-1350° C., and then cold quenching the melt.

(45) A method of using the acid-resistant blue overglaze (AA) for common Q345 hot rolled steel member with double-side enamel:

(46) Ceramic glaze and commonly used grinding feed, barium molybdate, borax, nitrite, antimony oxide, etc. are ball-milled according to different grinding ratios to prepare a slurry. The bulk weight and adhesion amount of the resultant glaze slurry are adjusted, according to different materials and different products, for immersion. The thickness of the ceramic layer is controlled at 0.2 mm, the firing temperature is controlled at 850-950° C., and the firing time is determined according to the color, gloss and adherence of the ceramic surface. The typical bulk weight for immersion is controlled at 175 (g/100 ml).

(47) The enamel ground glaze and the functional overglaze prepared in the technical solutions of the present disclosure are suitable for structural profiles such as hot rolled steel plates, steel pipes, angle steels and I-beams, which are of Q345A, B, C, D, E and other grades, with different thicknesses of 3-40 mm, and subjected to surface treatment, such as acid cleaning, shot blasting, sand blasting, or not subjected to any surface treatment. Such structural profiles are used for either single-sided or local enameling, each of which can achieve excellent scaling resistant effect.

(48) The examples described above are only some of the examples of the present disclosure, rather than all of the examples of the present disclosure. The detailed description of the examples of the present disclosure is not intended to limit the scope of the present disclosure claimed, but only represents the selected examples of the present disclosure. All the other examples that are obtained by a person of ordinary skills in the art on the basis of the examples of the present disclosure without inventive effort shall be covered by the protection scope of the present disclosure.

INDUSTRIAL APPLICABILITY

(49) Thanks to the scaling resistant ceramic glaze and the functional overglaze for Q345 hot rolled alloy steel with double-side enamel in the present disclosure, the design concept of ceramic glaze has been innovated, and a broader spectrum of scaling resistant ceramic glazes and functional overglazes have been invented by the method of combination of dredging and blocking. It has been proved, by repeated tests and use, and quality tracking, that they can be applied to Q345 steel that contains C, P, S and the like which are considered harmful elements and contains a variety of common alloy elements, and various steels of lower grades. The industrial enamelware made of the scaling resistant ceramic glaze and the functional overglaze marks a new stage on the aspect of the range of the steel materials that can be enameled on both sides, on the aspect of the improvement of the mechanical strength of the enamelware, and on the aspect of the reduction in the cost of the double sided enameled industrial products.

(50) In the present discourse, no expensive special enamel steel is used (the special enamel steel either cannot be ensured to be free of scaling), and there is also no need to use complex and expensive enamel heat preservation process (such process is not mature at present). Instead, low-cost structural members with enamel on both sides suitable for various functions are produced by the means of the ceramic glaze and the two-enameling and two-firing process, by enameling double sides of common Q345 material with scaling resistant ground glaze and then spraying of enameling functional enamel overglaze.