PC/PMMA composite board production equipment | Mobile phone composite board cover | PC/PMMA light guide plate

description

Market background:

With the arrival of the 5G era in mobile phones, non-metallic mobile phone back covers have emerged. Among them, in mid to low end mobile phone applications below 2000 yuan, plastic back covers have a cost advantage compared to ceramic and glass back covers, and plastic back covers are generally made of PC/PMMA composite boards. The structure of PC/PMMA composite panels mainly includes two types: PC/PMMA and PMMA/PC/PMMA, with layer ratios of 9:1 and 1:8:1, respectively. Due to the high hardness and weather resistance provided by PMMA, and the good impact resistance and formability of PC, the combination of the two can be well used as a universal base film for various high-pressure and hot pressed IMD/FIM molding processes, such as automotive control parts, interior parts, various instrument panels, mobile phones, monitors, luggage, helmets, etc. After surface hardening treatment, composite panels can be used for mobile phone covers through 3D high-pressure molding and texture treatment. There are only a few equipment manufacturers for producing PC PMMA composite boards, so they mainly rely on foreign imports, and there is a lot of room for localization.

Guangzhou Putong Experimental Analysis Instrument Co., Ltd. has accumulated rich and reliable experience from the PC/PMMA composite board experimental line to the stable production of the production line, and can providePC/PMMA composite boardTurnkey project. From factory design, raw material selection, equipment manufacturing and installation, to product production processes, one-stop packaging services enable customers to achieve mass production of PC/PMMA composite boards at the lowest price and fastest speed. At present, there are multiple successful cases in China, and we can also provide themIn House service maximizes the input-output ratio for enterprise users and minimizes investment risks.

Equipment Introduction:

Production equipment for PC/PMMA composite boardSpecially designed for high-end ultra-thin optical gradePC light guide plate and PMMA acrylic light guide plate. The thinnest PMMA light guide plate can be pressed to 0.5mm (thinner specifications are being broken), and the thinnest PC light guide plate can be pressed to 0.12mm. For mobile phone back covers, commonly used specifications are 0.64mm and 0.8mm. Using our PC/PMMA composite board production equipment can effectively solve problems such as crystal points, warping, rainbow patterns, and horizontal stripes, meeting the requirements of optical grade light guide plate grade.

The production equipment for PC/PMMA composite panels mainly consists of a multi-layer co extrusion system, a three roll rolling system, a laminating system, and a cutting and stacking system.

*The two single screw extruders in the co extrusion system use PC/PMMA screwsExhaust design, more suitable forPMMA/PCMelting of materialsexhaustextrudeIt has the characteristics of good plasticization, high yield, and no material leakage; precisiondedicatedMelt pumpIt can achieve stable extrusion pressure and precise quantitative output; Multi layer co extrusion in moldMold usedSpecial channel design, dedicated toThe double-layer or three-layer co extrusion molding of PC/PMMA transparent material can ensure the uniformity of sheet thickness and control of layer ratio, and the super mirror channel ensures the surface quality of the sheet;extruderControl system and componentsAll adoptinternationalFamous brand productsThe system is stable and reliable, and the entire line is controlled through a touch screen, which is easy to operate and displays rich information;The above configurations can ensure that the entire extrusion system is stable and reliable, providing the most effective guarantee for the following compression molding；

*The three roll rolling mill adopts a horizontal designThree rollersLayout, each rollerBy brandServo motor independent driveAdvanced multi axis control technology and precise transmission mechanism ensure that the roller speed ratio of each roller is constant;middlesteelThe roller seat is fixed,The left and right steel rollers are adjusted for roller distance using hydraulic cylinders，Roller seat linear slide guide, utilizing advanced technologyhigh precisionFine tuning device, effectively ensuring the membranepieceThickness and dimensional accuracyHigh quality rollers and precise roller spacing control ensureSurface quality of PC/PMMA composite board;

*The film coating traction system can complete the up and down film coating process, and the advanced tension control system can ensure that the protective film maintains constant tension and does not wrinkle during surface mounting;

*Specially designed forPC/PMMA composite boardThe designed fixed length cutting machine can ensure the cutting effect of PMMA light guide plates with specifications below 0.8mm, without any cracking or breakage; A stable and reliable sheet stacking system that can achieve neat stacking of up to 500 sheets with a stacking error of ≤ 2mm.

Production equipment for PC/PMMA composite boardProduced byPC/PMMA composite boardIn terms of product thickness uniformity, transparency, flatness, and surface quality, they are comparable to products produced by foreign equipment.