What materials are commonly used for laboratory countertops?

The countertops of laboratory equipment products can be roughly divided into five materials: 1, phenolic resin, 2, epoxy resin, 3, stainless steel, 4 and granite. \x0d\ The countertops are divided into chemical experiment countertops, physical experiment countertops and biological laboratory countertops. \x0d\ 1, chemical experiment table \x0d\ Chemical experiment table usually uses phenolic resin composite veneer table, phenolic resin solid board table, epoxy resin table and ceramic table; \x0d\ 1, 1, composite veneer tabletop: \x0d\ is made of phenolic resin special board for chemical experiment, with a thickness of 1mm, the base material is made of high-quality MDF material, the bottom surface is pasted with phenolic resin common fire-proof board, and the edge is sealed with 2.0mm thick PVC material; The composite thickness of the table top is 40mm; ; \x0d\ 1, 2. Table of solid wood board: \x0d\ is made of resin plate special board for chemical experiment, with a thickness of 12.7mm, and the total thickness after edging is 25.4mm；; Peripheral chamfer r10mm; The high temperature resistance shall not exceed 135℃. \x0d\ 1，3。 Epoxy mesa: \ x0d \ Material thickness 13mm, 20mm and 25mm are available; \x0d\ Features: a, 24-hour resistance to strong acid and alkali corrosion; B, with strong wear resistance, impact resistance, pollution resistance, not bending; C, high temperature resistance up to 600℃; \x0d\2。 Physical experiment table: \x0d\ Physical experiment table usually adopts phenolic resin composite veneer table and natural granite table; \x0d\2, 1, composite veneer desktop, material: 1mm thick phenolic resin special board for physical experiments, with high temperature resistance, wear resistance and scratch resistance. The substrate is made of high-quality MDF material, and the periphery is sealed with 2.0mm thick PVC material; The composite thickness of the table top is 40mm; ; \x0d\2, 2, solid board table, material: 12.7mm thick phenolic resin plate special board for physical experiments, with high temperature resistance, wear resistance, scratch resistance and antistatic characteristics. The total thickness after edging is 25.4mm；; Peripheral chamfer r10mm; \x0d\ Features: \x0d\a, with strong wear resistance, impact resistance, pollution resistance, high temperature resistance, antistatic property and no bending; \x0d\b, the maximum bearing capacity is 300kg/m2；; \x0d\c, temperature resistant, and can be used in the environment of -50℃~+40℃; \x0d\2，3。 Choose natural granite countertops: \x0d\ Thickness: 50mm for high temperature countertops; Platform 50mm；; \x0d\ Features: Strong mechanical properties and heat resistance; \x0d\ Maximum bearing capacity is 500kg/m2；; \x0d\ Disadvantages: Radiation is harmful to people's health (subject to the test report); \x0d\ \x0d\3。 Desktop of biological experiment platform: \x0d\3, 1. Select 1.2mm thick 3 16# stainless steel plate and fill it with composite plate. \x0d\ Features: 1, resistant to organic solvents; 2. Inhibit the growth of bacteria and mold; 3. Anti-pollution and easy to clean; \x0d\3，2。 Epoxy mesa: \x0d\ Material thickness of 20mm and 25mm can be selected; \x0d\ Features: a, 24-hour resistance to strong acid and alkali corrosion; B, with strong wear resistance, impact resistance, pollution resistance, not bending; C, high temperature resistance can reach 600℃; \x0d\ II。 The main frame of the metal main frame part \x0d\( 1) is supported by the standard \ x0d \ 1. ) Main support frame of test bench: the material is 2.0mm cold-rolled steel plate. "Benxi Steel" and "WISCO”\ x0d \ 2. ) The front and rear connecting beams are made of 1.5mm metal cold-rolled steel plate; The steel plate is made of cold-rolled steel plates produced by Benxi Steel and WISCO. \ x0d \ 3。 ) The connecting screws of each part of the frame adopt the national standard hexagonal baking blue screws. \ x0d \ 4。 ) The surface coating is sprayed with epoxy electrostatic powder. \x0d\5。 ) Protective color on the surface of steel main support frame: iron gray; \x0d\6。 ) The color of the frame connection part is ivory; \x0d\(2) Design requirements of main frame supported by steel main body \ x0d \ 1. ) cold-rolled steel plate with a thickness of 2.0mm is used for bending welding, and the connecting screw hole is designed with rivet nuts; The upper and lower beams are designed with 30 overflow inclined planes; "x0d" is characterized by smooth surface, simple and practical manufacture and controllable liquid holding. \ x0d \ 2。 ) The front and rear connection trough plates are made of 1.5mm cold-rolled metal plates, and the connection with the main frame is fastened with M8*20mm special hexagon socket head screws, and the treated surface of trough plates is sprayed with epoxy resin powder. \ x0d \ 3。 ) The rear detachable door panel for maintenance is made of 1.0mm thick metal cold-rolled plate, and the surface is treated and sprayed with epoxy resin powder. \ x0d \ 4。 ) The rear lower connecting plate is made of 1.5MM cold-rolled metal plate, and the surface of the connecting plate is treated and sprayed with epoxy resin powder. \ x0d \ 5。 The steel main support frame is designed for various box structures and styles, such as left and right push-pull boxes, hanging boxes and movable boxes. \x0d\ x0d \ 2。 The foundation box part \ x0d \ is divided into: steel-metal structure hanging box, steel-metal structure movable box and steel-metal structure floor box; \x0d\ Material description: \x0d\( 1), box; Comprises two side plates of a box body, and is processed and produced by adopting a bending process of a metal cold-rolled plate with a thickness of1.0 mm.. \x0d\ The color of the box is milky white; \x0d\(2), drawer panel and door panel: made of 0.8mm cold-rolled metal plate; \x0d\(3). Drawer: made of 1.0mm cold-rolled metal plate; \x0d\ (4), facade surface color and drawer surface color (ivory, blue); \x0d\(5) After the surface of the box is treated, the electrostatic powder of epoxy resin is sprayed (produced by DuPont, USA); \ x0d \ x0d \ Features: \x0d\ 1) No solder joint; \x0d\2) epoxy resin powder coating coverage 100%, never rusted and corroded; \x0d\3) Under certain circumstances, if the cabinet parts are damaged due to transportation, replace the detachable parts to overcome the problem of overall replacement of the welded cabinet; \x0d\4) Long service life, uniform specifications and dimensions, and overcoming non-standard products with large welding error and nonstandard specifications; \x0d\5) Modular cabinets are designed by connecting standard parts; \x0d\ \x0d\3。 Steel reagent rack parts \ x0d \ (1. ) There are two kinds of steel reagent racks: \x0d\a, combined reagent racks connected with steel main support racks. \x0d\ 1) supports hanging cabinets. \x0d\2) Reagent rack support of non-suspended cabinet. \x0d\b, used for the combined reagent rack fixed on the workbench. \x0d\ (2。 ) Material selection of steel reagent rack: \ x0d \ The rack is a multi-functional workpiece formed by bending and welding 1.5mm cold-rolled plate. The adjustable reagent rack is designed, and various laboratory functions are configured according to the requirements of different laboratories. \x0d\ Laminate of steel reagent rack: \x0d\A, MDF with a thickness of 15mm is adopted, and the periphery is sealed with special PVC edge sealing material. \x0d\B, tempered glass with a thickness of 12mm is adopted, and PVC flanges are arranged around it. \x0d\ (3) Configuration of functional accessories of steel reagent rack: \x0d\ can be configured according to user's requirements: power socket, overload protection, various experimental gases, water supply and drainage, exhaust system of reagent rack, hanging cabinet, etc. \x0d\ color configuration: steel bracket color: navy blue. The color of the connection part of the steel bracket is milky white. \x0d\ \x0d\4。 Accessories \ x0d \ (1. ) Special socket for laboratory: made of fireproof and high-temperature resistant PC material, designed with dustproof, splash-proof and automatic closing functions. Specification: overall dimensions 60*60mm, 10A, 13A, 16A. \ x0d \ (2) Test water nozzle: specifications include triple, double, single, remote control water nozzle, T-shaped and vertical water nozzle. \x0d\ is made of cast copper; The wall thickness is 2.5mm, ceramic water valve, and the surface is sprayed with epoxy resin powder. The connecting screw between the water supply pipe and the nozzle of the pipe joint is an inch 1/2 "joint. The water supply pipe is made of copper pipe and Rifeng aluminum-plastic pipe, and the joint is made of cast copper. \ x0d \ (4) Laboratory water tank: PP material, different specifications to choose from. PVC material is used to start the parts and bring them back to bend. \ x0d \ (5) Air nozzles and valves: made of stainless steel. \x0d\ is divided into; Single mouth, double mouth, three mouth, four mouth, etc. \ x0d \ (6。 ) anchor: it is a combination structure of stainless steel screw, nylon sleeve and rubber base. It has the characteristics of anti-skid, shock absorption, adjustable platform level, acid and alkali corrosion resistance and strong bearing capacity. \ x0d \ (7。 Door hinge: 2.5-inch stainless steel plate hinge with a thickness of 2.0 mm. \ x0d \ (8。 ) drawer guide rail; Bottom-mounted self-closing guide rail \ x0d \ (9. ) Test tube rack: There are many kinds of test tube racks, which are made of phenolic resin and have a thickness of 16mm. According to the use requirements, single-sided or double-sided test stands can be made. \ x0d \ ( 10。 ) The moving wheel of the matching box adopts metal wheel shell rubber spokes, and the height of the moving wheel is 80 mm..