Melamine molding compound is analpha-cellulose filled melamine formaldehyde material.It produces moldings with surface hardness unsurpassed by any other plastics.Molded parts have excellent resistance to abrasion,boiling water,detergents,weak acids and weak alkalis as well as acidic foods and extracts.
It is particularly well-suited for molding food contact products,including quality dinnerware for domestic and commercial food service.Melamine molded articles are specifically approved for food service.Melamine molded articles are specifically approved for food contact.Additional applications include Serving Trays,Buttons,Ashtrays,writing Devices,Cutlery and Kitchen utensil handles.
Our advantages:
1. High purity
- Control the consistency of raw material from the mine resource.
- Introduce automatic whole-process equipment to ensure product consistency.
- Not allowed any harmful impurities during raw material & production process.
2.Fine classification
- Choose different raw materials according to their characteristics.
- Various product category, to provide customized slag treatment scheme
3. Environment friendly & health
- The reaction process is only a change of physical state, not chemical reaction, so no solution to the molten metal.
- The physical reaction is stable and non-toxic and tasteless. It does not produce soot & not affect human health.
4).Mechanism of slag removing
- Low softening point, high viscosity. After being scattered into the metal surface, the product will expand and
- Spread out to cover the entire surface, melt rapidly, form a high-viscosity "film" finally, which
sticks to the scum in the metal, to make slag collected and removed.
Cenosphere
Cenosphere China
Cenosphere Supplier
Product Details
Cenosphere sometimes called microsphere, is a light weight, inert, hollow sphere made largely of silica and alumina and filled with air or inert gas, typically produced as a byproduct of coal combustion at thermal power plants. The color varies from gray to almost white and their density is about 0.60.9 g/cm³, all these property give it a widely application for insulation, refractory, oil drilling, coating, construction use
Particle size distribution :10/20m 20/50m 30/50m 50/100m 100m 200 m 325m
P2o5 : 0.0002%
Cao : 0.01%
Mgo: 0.01%
Al2o3: 0.15%
Fe2o3: 0.005%
Sio2 : 99.9%
Packaging: 25 kg / bag, 1000 kg / bag , 20-24mt/1x20container .
We can offer free sample from 5kgs to 25kgs.
ParametersStandard Value
Silicon Dioxide(SiO2)85%-95%
Loss on Ignition(L.O.I)3 % max
Moisture Content(H2O )1.0 % max
Percent Retained On 45ųm (325 sieve)2.0 % max
Bulk Density350-700kg/m3
Microsilica is very fine pozzolanic material.This product comprises microcopic particles collected by filters downstream from smelting process in silicon ferrosilicon alloys.
Microsilica, this product comprises microscopic particles collected by filters downstream from the smelting process in silicon and ferrosilicon plants. Adding it to concrete and other materials, increases their density and wear resistance, which extends the life of structures.
Product description:
1.Material: magnesium oxide
2.Featrue:, high thermal shock resistance
Packaging & shipping:
1.Packaging details: cartons with pallet
2.Delivery time: within 20 days
Usage:
Used for smelting and assaying , excluding gold and silver elements, more accurate test results, high temperature resistance and resistance to thermal shock .,
Specific techincal data
Production method:dry pressing
Typical chemical analysis
Mgo, 98.5%
Al2o3, 1.2%
Working temperature1300, ??-1350, ??
Specific gravity:2.35
Porosity:12%-15%
Lead absorption91%
Product specifications:
1.Made of fire clay
2.Used for smelting & assaying
3.High density & quality
Applications:
Precious metal analysis
Mining laboratory
Laboratory testing
Mineral assaying
Fire assaying
Gold assaying
Features:
Long lasting, can be used 3-5 times
High mechanical strength designed to withstand severe thermal shocks
Special formula, curing and pressing process
Multi-use crucible
Withstand extremely corrosive fire assay environments
Packaging & shipping:
Cartons with pallete, crates or as customer's requiements.
Usage:
Used for smelting and assaying , excluding gold and silver elements, more accurate test results, high temperature resistance and resistance to thermal shock . The average serial can be used for 3-5 times
Specific technical data
Production method:press forming
Typical chemical analysis
Sio269.84%
Al2o328%
Cao 0.14%
Fe2o31.90%
Working temperature1400??-1500??
Specific gravity:2.3
Porosity: 25%-26%
Fire assay fluxes according to customers' recipe, or our own specification. Gold free and silver free type are available
The famous fire assay has been around for more than 500 years, but it still is the best method for determining the quantity of gold, platinium and other precious metals, thus widely used by gochemical assay laboratories. The fire assay process works by fusing or dissolving the rock sample in a crucible using a lead glass flux. Fluxes of various types are used on various types of ores. Most flux mixes may contain the following:
Litharge,
Sodium bicarbonate,
Silica,
Borax,
Flour,
Florite,
Etc.
Gemhold does custom manufacturing of lead monoxide(litharge) with qualified manufacturer in china, producing top grades of litharge from 99.5% - 99.9%min, which are widely used in fire assay, optical glass, piezo ceramic, and other industries. For fire assay industry, gemhold can produce assay grade litharge with very low gold and silver content, say, gold less than 1.5ppb, and silver less than 0.15ppm.
Gemhold can produce assay fluxes according to customers' recipe, or from our own standard. Our ability to product high quality litharge enable us to produce idea fluxes needed in the low level assay works. Our quality control system and semi-automatic manufacturing processes make our fluxes fully reliable. We can assay each batch of our flux if customers require that, and coa be be provided before despatching
Ultrafine Products
Product description:
Superfine CuO Particles
Electronic grade copper oxide
Superfine copper (II) oxide powder;
Active copper oxide; Submicron copper oxide powder;
CAS 1317-38-0
Product Specification:0.2-1.0m
Product Explanation:
Molecular formula: CuO
Molecular weight: 79.55
Appearance: Dark brown or black powder
Product use:
As continuously added copper source of PCB plating; as an important inorganic materials in area of semiconductor,catalysis, superconductivity, ceramics, and other fields; as catalysts and carrier also electrode active material; as coloring agent of glass and porcelain;as optical glass polishing agent; as organic synthesis catalyst, oil desulfurization agent, hydrogenation agent;for manufacture of artificial stones,copper oxides,and rayon;As for analysise gas and determine organic compounds also as burning rate catalyst of rocket propellant.
Packing, storage and shipping:
Aluminum foil packaging, each bag of 2kg, 10kg, or 20kg. Seal packaging.
Store in a cool & dry place. Keep it away from reductant.
Color: yellow, brown, gray and black.
The cleavage surface often shows pearls or submetallic luster. Phlogopite has higher insulation and resistance, lower electrolyte cost, arc and corona resistance and any other dielectric prosperities .As per the Physicochemical properties, perfect toughness, high mechanical strength, thermostability and acid&alkali-resistance. At present,It is widely used in radio industry, aircraft industry, production of electrical machinery, coating, painting, plastic,linoleum,paper making,drilling oil etc. Typical application: Phlogopite flake can be used for production of electrical machinery, insulant of electric furnace, Chaozao mica paper, mica sheet and fire-resistant mica tape. The expansion mica used for building.Producing insulated brick for kiln. In addition, it used for the material of drilling oil, the filler of plastic and the pad of rockets missile .
SEPPE Cenosphere is a lightweight, inert, hollow sphere filled with inert air or gas, typically produced as a byproduct of coal combustion at thermal power plants. The color of cenospheres varies from gray to almost white and their density is about 0.4-0.8 g/cm³, which gives them a great buoyancy. Flows like a liquid, with the appearance of a powder. Provides lightweight bulk to a varied and expansive range of compounds. Cenospheres are hard and rigid, light, waterproof, innoxious, and insulative. This makes them highly useful in a variety of products, notably fillers.
Cenospheres are now used as fillers in cement to produce low-density concrete. Some manufacturers have begun filling metals and polymers with cenospheres to make lightweight composite materials with higher strength than other types of foam materials. Such composite materials are called syntactic foam. Aluminum-based syntactic foams are finding applications in the automotive sector. Silver-coated cenospheres are used in conductive coatings, tiles and fabrics. Another use is in conductive paints for antistatic coatings and electromagnetic shielding.
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