As we know, the rearview mirror is divided into outer rearview mirror and inner rearview mirror. A typical external rear-view mirror is composed of nearly 20 parts, among which plastic materials are mainly used in the rear-view mirror case, mirror case base, bracket and triangle plate. These pieces play a different function or appearance, the performance requirements of the material are different, and then we give a detailed description of its material selection. 01 Rearview mirror housing Rear-view mirror shell is generally designed to be the same color of the body, and most of them are high-gloss effect, so most of them are sprayed, and a few electroplating schemes can also be adopted to reduce the pressure of environmental protection. Common scheme of rearview mirror housing Characteristics of post-processing and material selection program post processing material characteristic spray lacquer spray lacquer heat-resistingABS PC ABS The colors are varied; Good weather and scratch resistance electroplate heat-resistingABS Part or all electroplating, high cost, multi - high-end car use Avoid spraying nothing heat-resistingABS Good weather resistance Highlight black effect Black brightness effect, black or white can be achieved Rearview mirror - white upper housing, PMMA/ASA M1600 Rear view mirror - black lower housing, PMMA/ASA M1800 02 Mirror shell base The mirror housing base plays an assembly and transition role, so ASA or PP+MD is preferred. Common scheme of mirror housing base Characteristics of post-processing and material selection program material characteristic post processing Heat ASA Specular ASA PMMA/ASA Good weather resistance Highlight black effect Black bright effect, good weather resistance nothing PP+MD low coat Specular black mirror housing base, PMMA/ASA M1800 03 Rearview mirror holder The rear-view mirror bracket mainly plays a supporting role, requiring high rigidity, good appearance, good weather resistance, can choose metal parts, plastic parts or metal and plastic combination, most choose aluminum alloy, PA+GF or PBT+GF. Common scheme of rearview mirror bracket Characteristics of post-processing and material selection postprocessing material characteristic nothing Aluminum alloy +ASA, etc High rigidity, high toughness, high density, high cost nothing PA+GF hive consideration to toughness, poor dimensional stability, aging resistance nothing PBT+GF High rigidity, good dimensional stability, good surface, low cost Rearview mirror bracket, PBT+30%GF PBT 3730G The triangle plate of the rear-view mirror is the part connected with the car window, which is mostly formed with the rear-view mirror bracket. If it is formed separately, the selected materials are metal, ASA or PC/ASA. Above are the material selection and characteristics of the external rearview mirror.

Audi focuses on car lights There are two kinds of lights in the world, one is the audi lamp, the other is the lamp, as early as the xenon headlight era, the first generation of audi A8 began to lead the trend of car lights.Audi's headlights have always been full of tricks. If I told you now that audi is turning to the home lighting market, would you pay for such cool lights? Honda focuses on the engine Buy start send a car, Honda relies on this "unique skill" win the trust of a lot of consumer, till now, Honda rolls out many turbocharged engine, in be in the same level in, talk about fuel consumption and power Honda is more outstanding. Nissan focuses on sofas Nissan car seat comfort is very famous, has the "moving sofa" title.The first teana is synonymous with comfort for the nissan line, especially the "zero gravity" seats, which provide the most comfortable support for the human waist, allowing the driver to relax and feel comfortable. VW is focused on studying the Chinese Now many Volkswagen cars are tailor-made for Chinese consumers. Volkswagen, which knows Chinese consumers' preferences, is going further and further down the road of "opportunistic". BMW focuses on handling There is a saying called "driving BMW sitting Mercedes", BMW control is in many luxury cars in the sharp weapon of breaking out, driving will have the feeling of "people and cars together" Wuling focuses on drawing goods Wuling macro light is a god car in China, "endurance" makes its sales very considerable, both can carry goods and pull people, but also has a luxury car killer, drift artifact, and the title of the monster carrying customers. Zotye focuses on other cars Zotye's "high imitation" ability is indeed second to none in China, most of its models are copying other brands, and it has dominated the headlines and hot spots with various imitation shows for a long time, causing the media and Internet users to heckle "bursts of cheers".

Adhesion (non-destructive) Silk-Screen Use 3M adhesive paper (or customer specified) to stick it flat on the surface of the test product with a length of 50mm;Angle 45 degrees: instantly pull up the tape 3M Tape、Knife The surface of the experimental materials is free from printing ink, electroplating layer, bronzing, paint layer falling off, peeling off, and so on Electroplating and bronzing Use 3M adhesive paper (or customer specified) to stick it flat on the surface of the test product with a length of 50mm;Angle 45 degrees: instantly pull up the tape 3M Tape、Knife Oil Paint Use 3M adhesive paper (or customer specified) to stick it flat on the surface of the test product with a length of 50mm;Angle 45 degrees: instantly pull up the tape 3M Tape、Knife Wear-resistant test Alcohol concentration 99.7% 500g weight,test 25 times Weight,concentration 95% alcohol Testing materials do not see the substrate, paint surface is not white Hardness Test 1. The test products placed in a horizontal platform, with a hardness of HB pencil and 45° Angle on the surface of the rubber, the pencil lead broken shall prevail, ahead of the test material for the experimenter scratching 10 mm (5) 2. Simple method: scratch the test material surface with a force of 500G nail Hardness tester, HB pencil, drawing eraser Wipe clean with drawing eraser, test material surface without scratches is OK Destructive Toughness Use pliers to break the test product with a force of 500G, and break or bend the test product Pliers ）Plastic body (broken section should be gray white, no fragmentation phenomenon;If the section is smooth, black and brittle, then NG) Cut-Gross test adhesion (destructive) Electroplate Interval of every 1 mm ~ 1.2 mm, with a total of 10, has become a 10 * 10 100 squares, the knife row down time should be cut to meet substrate, not only to cut on the coating, 3 m tape in the best position, press with finger will closely attached with adhesive tape, Angle to 45 degrees of the strength of the instantaneous tear tape, visual materials on the coatings have fall off phenomenon, in addition, the adhesive tape is not literally a can (blade width is about 10mm~12mm) Use a 10-fold magnifying glass to observe the peeling degree 4B (small pieces of paint come off at the intersection of the lines, and the total peeling area is less than 7%). Oil Paint Gilding Temperature Test High Temperature High temperature 105 ℃ testing 4 hours (unless it is otherwise special requirements of customers) after the test there shall be no material, paint blowout, blister, plastic deformation High-low oven After the test can not have the material, paint burst, foam, plastic deformation Low Temperature 40 ℃ low temperature test - test 3 hours (unless it is otherwise special requirements of customers) after the test there shall be no material, paint blowout, blister, plastic deformation