724 results about "Vitreous enamel" patented technology

The present invention provides a new and useful nonstick coating for use on pure aluminum, alloys of aluminum, or aluminized steel surfaces. A nonstick coating according to the present invention includes a ceramic substrate disposed on an aluminum surface and a fluorocarbon polymer coating disposed on the ceramic substrate. The ceramic substrate, prior to firing, includes at least two layers: a first or bottom layer applied to the aluminum surface including an enamel ground coat; and a second or top layer applied over the enamel ground coat layer including a blend of one or more glass frits, non-ceramic refractory particles, and non-vitreous inorganic oxide particles. Upon firing, the ceramic substrate includes a continuous layer of vitreous enamel that is bonded to the aluminum surface. The exposed surface of the ceramic substrate has a micro-rough texture that is enriched with bonding sides for binder resins used in a fluorocarbon polymer primer layer. The ceramic substrate protects the aluminum surface from corrosion and mechanical damage and also protects the fluorocarbon polymer coating from abrasive wear.

The invention discloses enamel steel for a cold rolling water heater and a manufacturing process thereof. The enamel steel for cold rolling water heater comprises components as follows in percentage by weight: C: 0.01%-0.08%. Si: less than or equal to 0.03%, Mn: 0.10%-0.60%, P: less than or equal to 0.02%, S: 0.003%-0.02%, N: 0.001%-0.006%, AIs: less than or equal to 0.04%, Ti: 0.02%-0.12%, and the balance of ferrum and unavoidable impurities, wherein excess Ti content in steel is equal to Ti-(4*C+3.43*N=1.5S) which is less than or equal to 0. The manufacturing process is characterized in that the heating temperature of billet steel is 1160-1300 DEG C; the hot rolling finish rolling temperature is 850-950 DEG C; the coiling temperature of steel plates is 660-760 DEG C; the cold rolling draft is 60%-80%; the annealing temperature is 760-880 DEG C; the temperature preservation time is 60-200s; rapid cooling speed rate is 15-45 DEG C/s, planishing elongation is 0.7%-1.8%; and surface roughness is 0.7-1.9 micrometres. The invention has the advantages of excellent formability, enamel-spreadable property, pressing resistance, weldability and fish-scaling resistance, stable yield strength after enamelfiring, less cost increase, stable effect and significant economic benefits.

The present invention relates to ultralow carbon cold rolled deep drawing glass-lined steel and its production process. The glass-lined steel has the chemical components including C 0.002-0.005 wt%, Si 0.004-0.020 wt%, Mn 0.08-0.13 wt%, P 0.006-0.020 wt%, S 0.01-0.035 wt%, Als 0.010-0.040 wt%, Ti 0.05-0.09 wt%, N not more than 0.004 wt%, and Fe and inevitable impurities for the rest. The steel of the present invention is superior to IF steel, and has raised Ti and S contents for effective separation of biphase Ti4C2S2 particle, and effective fixing of H atom to avoid scale burst of enamel. It has excellent deep drawing performance and excellent enameling performance.

The invention discloses enamel steel with scaling resistance. The enamel steel is prepared from the following components in percentage by weight: 0.0020-0.0050% of C, 0.30-0.50% of Mn, 0.0050-0.0100% of Si, 0.010-0.015% of P, 0.011-0.020% of S, 0-0.010% of Als, 0.011-0.020% of O and the balance of Fe and other inevitable impurities. A manufacturing method sequentially comprises the following steps: pretreatment of molten iron, smelting by a converter, refining, continuous casting, hot continuous rolling, acid washing, cold continuous rolling, annealing and finishing, wherein the heating temperature for hot continuous rolling is 1150-1250 DEG C, the finish rolling temperature is 860-920 DEG C, the winding temperature is 650-750 DEG C, and the cold rolling reduction rate of cold continuous rolling is 60-80%. The enamel steel disclosed by the invention has no scaling phenomenon and low production difficulty, and is suitable for being applied to the technical field of iron and steel smelting.

The invention discloses a preparing method of electrostatic enamel hot-roller fine-grained steel, which is characterized by the following: allocating mass percent as 0. 02-0. 10 carbon, not more than 0. 10 silicon, 0. 4-1. 0 manganese, not more than 0. 05 phosphor, 0. 02-0. 05 sulfur, 0. 01-0. 10 aluminum, 0. 003-0. 010 nitrogen, 0. 03-0. 10 titanium, surplus ferric and unavoidable impurity; setting the content of TiN at 0. 013-0. 044; setting ferrite tissue grain fineness number not less than 10 grade. This invention possesses good enamel adherence property and against squama knock property.

The invention provides a hot-rolled high-strength steel sheet for static enameling and a manufacturing method for the steel sheet. The main components by weight of the steel sheet are: C: 0.02-0.1%, Si<=0.1%, Mn: 0.2-1.5%, P: <=0.035%, S<=0.035%, Al: 0.01-0.1%, N: 0.001-0.01%, Ti: 0.01-0.1 %, Nb: 0.001-0.1%, and the remainder are iron and unavoidable foreign matters. The structure of the steel sheet comprises ferrite and pearlite, an the average particle diameter of the ferrite is not more than 11 micrometer. The manufacturing method of the steel sheet is, rolling twice the continuously cast or steel blanks after heating to 1100-1250 DEG C with total pressure-down amount <=50%, and final rolling temperature >=800 DEG C, then cooling section by section to coiling temperature 550-700 DEG C, and finally leveling the sheet. The hot-rolled high-strength steel sheet is applicable for pressure vessels such as bladders of water heaters, liquid-storing tanks and water buckets, etc. that are manufactured by static enameling process, is of high strength and good plasticity, high resistance to scaling bursting and air tightness.

Cleaning and multifunctional coating compositions containing hydrogen peroxide and an organosilane quaternary compound in aqueous formulations are used to improve water and soil repellency and residual antimicrobial activity. Various surfaces may be treated including metal, glass, plastics, rubber, porcelain, ceramic, marble, granite, cement, tile, sand, silica, enameled appliances, polyurethane, polyester, polyacrylic, melamine/phenolic resins, polycarbonate, siliceous, painted surfaces, wood, and the like.

The present invention provides a ground coat composition for use in forming an enamel layer on sheet steel that exhibits good spot acid resistance, a satin finish, good bond, and is easy-to-clean. The composition according to the invention includes a glass component that includes a blend of from about 40% to about 70% by weight of a first glass portion including one or more alkali aluminophosphate frits, up to about 30% by weight of a second glass portion including one or more zirconia-phosphate frits, and up to about 30% by weight of a third glass portion including one or more alkali borosilicate frits.

The invention relates to an enamel glaze material for a steel plate. After the glaze material is calcinated, an enameled product has corrosion resistance, chemical resistance, weather resistance and decorative property, and the service life of the enamel can be prolonged. The technical problem to be solved is to provide the enamel glaze material. The enamel glaze material overcomes the defects that the conventional enamel glaze material is easy to deform and soften in high-temperature high-humidity environments. The enamel glaze material capable of resisting corrosion, softening and deformation is provided. The enamel glaze material comprises Ba2O3, Li2O, Na2O, MgO, Al2O3, SiO2, P2O5, SO3, K2O, CaO, TiO2, Cr2O3 and the like.

The invention discloses a high strength enamel steel in which the chemical compositions are as follows according to weight percentages: C is 0.01 to 0.12; Si is less than or equal to 0.03, Mn is 0.50 to 1.00, P is less than or equal to 0.070, S is less than or equal to 0.015, Nb is 0.020 to 0.050, Mo is 0.05 to 0.30, Als is 0.005 to 0.070, and the remainder is Fe and unavoidable impurities; simultaneously, the steel further meets that 10Nb is greater than or equal to Mo and 10Nb+Mo is greater than or equal to 0.30 and is less than or equal to 0.50. The steel yield strength is greater than or equal to 360 MPa. The production and enamel firing technology of the steel in turn comprises melted iron desulfurization, combined converting at converting top and bottom, argon blowing treatment, protective casting into plate blank, controlled rolling controlled cold rolling into hot rolled plate, acid cleaning, sand blasting, enamelling and high temperature enamel firing, having simple production working procedures, low production cost, multiple enamelling methods, good enamel adhesiveness and high-temperature resistant enamel firing.

The invention specifically relates to an enamel glaze material, an enamel slurry, and a preparation method and an application thereof. The invention relates to the technical field of enamel materials. The invention aims at solving a technical problem of providing an enamel glaze material. The enamel glaze material is prepared by uniformly mixing the following raw materials, by weight: 40-45 parts of quartz sand, 9.5-10 parts of feldspar powder, 24-26 parts of borax, 2.5-3 parts of cryolite, 5.5-7.5 parts of sodium nitrate, 3.5-4 parts of lithium carbonate, 3.5-4.5 parts of fluorite powder, 2-4 parts of calcium carbonate, 3-4 parts of cobalt nitrate, 0.8-1.2 parts of nickel nitrate, 2-2.2 parts of manganese oxide, and 3.4-3.8 parts of zirconium dioxide. The enamel glaze material can be combined well with glass powder to produce the enamel slurry. The enamel slurry can be coated on the surface of a metal substrate to form an enamel coating. The coating has the advantages of smooth glaze surface, good gloss, no bubble, and no scaling. The coating can be firmly combined with a carbon steel substrate, and has good acid resistance.

The invention discloses an enamelling method of an enamel heat transfer element, comprising the following steps of: (1) preparing enamel frit for later use; (2) making an electrostatic enamel powder which can be sprayed by the use of an electrostatic spray gun; (3) making glaze slip which can be used for wet spraying; (4) spraying the glaze slip obtained from the step (3) on the heat transfer element's grooves and slots which are not easy to spray by an electrostatic dry method; (5) drying the heat transfer element sprayed by the step (4), sending the dried heat transfer element into an electrostatic spraying device, and spraying the electrostatic enamel powder by using the electrostatic spray gun; (6) sending the heat transfer element which has undergone the above steps into a high temperature enamelling kiln for sintering, and cooling to obtain enamel heat transfer element with anticorrosion performance. According to the workpiece sprayed by the enamelling method of the enamel heat transfer element, enamels are greatly wrapped by edges after sintering. In addition, the grooves of the heat transfer element are greatly coated with enamel. The enamelling method is suitable for various shapes and wave patterns.

The invention discloses economical deep drawing cold rolling enamel steel and a production method. The economical deep drawing cold rolling enamel steel comprises the following chemical elements in percentage by weight: 0.005%-0.015% of C, equal to or less than 0.030% of Si, 0.15%-0.25% of Mn, equal to or less than 0.020% of P, 0.010%-0.020% of S, 0.030%-0.060% of Al and equal to or less than 0.0040% of N. The production method comprises the following steps: hot metal pretreatment, smelting in a converter, alloy fine adjustment station, refining in an RH furnace, hot rolling, acid pickling, cold rolling, continuous annealing and leveling. The economical deep drawing cold rolling enamel steel is produced through the working procedures of hot rolling, acid pickling, five-rack full six-roller cold continuous rolling and continuous annealing and leveling, wherein the yield strength is 160-190 MPa, the tensile strength is higher than 300 MPa, the A50 elongation is greater than 45%, n is greater than 0.2 and r is greater than 1.8.

The invention discloses a preparation method of white body ice crackle vitreous enamel and products produced from the white body ice crackle vitreous enamel. The white body ice crackle vitreous enamel is prepared by using common mineral raw materials and chemical raw materials to prepare body material and glaze material and burning at 1220 DEG C-1240 DEG C. The crackles of the surface of the glaze are as dense as fish scales, and are crackled obliquely. The large crackles and small crackles are overlapped, hidden and discontinuous on some positions, and form superposed layers of crackles. Thecolor of the crackles is glossy and crystalline. The crackles are thin and deep into the body of the vitreous enamel. The vitreous enamel brings a texture of crystalline surface of the glaze and scale-like convex inside of the glaze. According to the preparation method and the products provided by the invention, the limit that the Longquan ice crackle vitreous enamel is only prepared for grey body and greenish glaze is broken through. The adorning range of the ice crackle vitreous enamel is expanded. The application prospects of the white body ice crackle vitreous enamel in the high-end tea sets and the artistic porcelain are wide.

Cleansing and multifunctional coating compositions containing an organosilane quaternary compound, nonreactive abrasives, and hydrogen peroxide in aqueous formulations are used to improve water and soil repellency and residual antimicrobial activity on surfaces. Various surfaces may be treated including metal, glass, plastics, rubber, porcelain, ceramic, marble, granite, cement, tile, sand, silica, enameled appliances, polyurethane, polyester, polyacrylic, melamine/phenolic resins, polycarbonate, painted surfaces, wood, and the like.

The invention relates to aqueous high-temperature-resistant enamel paint, and a preparation method and a construction method thereof. The paint is prepared from an inorganic-composition binder, a gelling curing agent and a color paste according to a certain wegiht ratio. The binder is prepared from the following compositions in parts by weight: 40-80 parts of silica sol, 0-20 parts of aluminium sol, 0.05-0.5 part of a dispersant, 0.05-0.5 part of an antifoaming agent, and 0.2-0.5 part of a levelling agent. The gelling curing agent is prepared from the following compositions in parts by weight: 60-90 parts of a potassium tartrate solution, and 2.0-10.0 parts of a titanate coupling agent. The color paste is prepared from the following compositions in parts by weight: 0-40 parts of rutile type titanium dioxide, 0.05-3 parts of nanometer titanium dioxide, 0-20 parts of an inorganic high-temperature pigment, 30-80 parts of aqueous silica sol grinding body, and 0.1-0.6 part of a dispersant and an antifoaming agent. The paint has excellent surface decoration property, has the high hardness of 6H or more at a high-temperature state, is capable of realizing long-term use at a 600 DEG C high-temperature environment without changing the surface decoration effect, and has extremely excellent outdoor weatherability.

The invention discloses hot-rolled high-strength steel for double-faced enamel. The hot-rolled high-strength steel comprises the following chemical elements by mass: 0.08 to 0.15% of C, 0.15 to 0.50%of Si, 1.2 to 2.5% of Mn, 0.006 to 0.08% of Al, 0.15 to 0.65% of Cr, 0.01 to 0.06% of Ti, 0.01 to 0.10% of Nb, 0.10 to 0.35% of Cu, 0.03 to 0.15% of Mo, 0.02 to 0.10% of V, no more than 0.03% of P, nomore than 0.006% of S and no more than 0.006% of N, with the balance being Fe and other unavoidable impurities. Correspondingly, the invention also discloses double-faced enamel steel. The double-faced enamel steel is prepared from the hot-rolled high-strength steel for double-faced enamel through enamel firing. The microstructure of the double-faced enamel steel is granular bainite. Moreover, the invention also discloses manufacturing methods for the hot-rolled high-strength steel and the double-faced enamel steel.

A surface protecting method for refractory Ti-alloy includes such steps as preparing a refractory enamel proportionally containing Al, Si, Ca, Zn, Zr, Na, Mg, Ce and O, coating it on the surface of Ti-alloy by electrophoresis, and sintering.

A vitreous enamel steel sheet produced by a continuous casting, excellent in formability, bubbling and black spot resistance and adhesiveness, which comprises, in terms of mass %, 0.002% or less of C, 0.05 to 0.2% of Mn, 0.01% or less of Si, 0.004% or less of N, 0.015 to 0.05% of 0, less than 0.01% of P, 0.025% or less of S, 0.02 to 0.04% of Cu, 0.03 to 0.05% of Nb, and 0.03 to 0.07% of V, satisfying the inequality: 0.2>Mn (%)-2.0.O (%)+0.8.V (%)+0.5.Nb (%), and the balance consisting of Fe and unavoidable impurities, and a method for producing the same.