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%
Specifications 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
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 .
Mineral Sand/Powder.
Fire assay crucible, fire assay cupel and fire assay flux.
Mica powder sublime.
Wet ground mica, dry ground mica, synthetic mica, mica flake, color mica and mica powder.Production, exporting
Mica powder, mica, muscovite powder, phlogopite powder.
Vermiculite, perlite, silica sand, mica powder.
Vermiculite, mica, quartz sand, sand pebbles, colour sand, river sand, medical stone, calcium powder, tourmaline, zeolite.
Mineral wool board, mineral ceiling board, mineral fiber board.OEM & ODM services
Graphite electrode, graphite crucible, graphite powder, graphite plate, graphite paper, pla, pla+, petg, abs, pbat+pla .Manufacture and export
Refractory materials: silica bricks , coke oven , hot blast stove, fused silica brick, silica sand/powder, silicious mortar, silica sealing mix, sodium silicate, feldspar powder.
Non metallic mineral products,eg. mica powder,kaolin powder,barite powder,dolomite powder,calcium carbonate etc..
Non metallic minerals such as minerals powder, clay, stones, graphites, pigments, fiber, glass.
Mullite sand/powder precision casting, ceramic beads steel/aluminum/alloy casting, mica, high reflective roofing granule, superfine sodium bicarbonate, low iron dolomite, low iron/high purity calcite, low iron/ high purity silica sand/powder.
Optical grade materials like CaF2, BaF2, MgF2, AlF3, PbF2, LiF, Al2O3, SiO2, rare earth fluorides and alumina polishing powders.Manufacturer
Graphite petroleum coke, calcined petroleum coke, calcined anthracite, graphite electrodes, graphite rods, silicon carbide, ferrosilicon, , inoculants, nodulant, steel grift..
