A composite membrane when doing the T- peel test , the test sample is always turned on or hem . Fixed by hand and pulled to move the sample with the sample , the sample is difficult to form a right angle . Value appears in force when turning or hem near Mu angle measurement was obviously not the same , then how to measure the peel strength was accurate?GB/T2791-1995 clear that the flexible material is a flexible material and glued to T -type peeling test at a peeling force is applied to thermoforming packaging the bonding side of the sample, the sample along the peeling adhesive connection , and the adhesive force applied to the wiring may need to control the angle between the . In a free state is detected force value , do not control the angle . Labthink tensile testing machine has an automatic function go head to tail , that trial began with the end of the force value is not counted , so the impact of the end of the trial began with the fluctuations have been eliminated , the test can accurately reflect the situation .2 when the aluminum composite material as a stripping test , the poor mechanical properties , a pull -off , peel strength can not be detected . Unable to explain to peel peel strength but not too realistic and accurate. Although sometimes the surface of the aluminum foil can be attached to the tape , and then peeling the test sample , the data show that the force values ??than the taped samples is not much higher . How to accurately reflect the peel strength aluminum composite products it ?GB8808-88 clearly states: all kinds of soft plastic composite composite plastic on plastic or other substrates formed , its principle is measured along the length direction of the composite sample layer and the substrate pre- stripping 50mm stripped part no obvious damage . If the sample is not easy to peel , blister sealing one end of the sample can be immersed in solvent treatment of about 20mm , to be completely volatile solvent , then peel test . If after this treatment can not be separated from the substrate , the test is not performed . Such situations can be concluded that the national standard tests can not be carried out , indicating that the substrate and peel the foil tearing force is much larger than its own mooring . If companies want to study the peel force in aluminum foil adhesive tape surface after a test , the results can be used to measure the quality of the composite film.Numerous studies show that there is a certain kind of the substrate on the peel strength of the different types of substrates having different moduli , the required modulus and impact energy of the substrate is deformed , thus affecting the peel strength. Peel strength increases with increasing thickness of the substrate . Therefore, when discussing the release properties of these products , the type and thickness to the substrate , the kind and thickness of the tape , otherwise the test will lose valuable data .3 for the three-layer composite structure, such as BOPP / PE / Vm-CPP, the peeling strength of the first detection layer or the second layer, while the other layer will be pulled off , so that the peel strength between the layers is detected not enough vacuum , accurate, is there any way to avoid this situation ? complex structure detected when three or more , there is no requirement from the first floor where the order how ?In this regard there is no clearly defined national standards , so we do such an experiment , the results only to peel strength , but also to test the phenomenon occurred during . A large number of tests showed that the peel strength between the multilayer films are not the same for each guide . No relevant state regulations , companies can develop enterprise standard test methods according to their actual situation. The general principle is not stripping layers simultaneously on the same sample in a test , I peeled off layer to the middle layer composite films prevail .QZY-1150 hydraulic cutting red machine failure exampleHydraulic System Hydraulic Cutter event of failure, is generally difficult to visually detect the fault , operation and maintenance to bring some difficulties , especially for general maintenance worker , lack of knowledge about the hydraulic troubleshooting hydraulic systems on is more difficult .QZY-1150 hydraulic cutter I used in the production of such a phenomenon has appeared : After contact with the platen lever dropped the paper pause for some time, began to decline cutter , cutting platen and coherent action not up. After the completion of the crop, the cutter returned to normal in situ , but could not lift the platen lever up, has caused great inconvenience to the operator .The analysis considered a valve, the oil plug, or valve change due to the poor . We first removed valve cleaning, clear the circuit, after the installation of child sole haiku threatened to close the first rime V favorite uniform Huai Yi Da cowardly aims frightened rafter said braid penalty port glycosides ! W Xing Fu governance Catfish spit Cheng entropy penalty raccoon coat and hit through the vertebral Kang Pi curtain Asahara lazy five hit Ken Pi Gua Gua color box packaging Di Zhi Xin Street pavilion goblet ? ) oil line is blocked, not smooth . 2 ) spring break . After the exclusion of all other lock , remove the cylinder was found under a hydraulic valve spool return spring break , put on the same model , same specification return spring , and then boot operation, press the paper cutting action consistent with everything back to normal.Causes and remedies of the printed ink film shrinkageShrinkage is a malfunction caused by bad ink film leveling , ie after printing , wet ink film in the leveling process, and result in the same color ink substrates or former bared .1 cause shrinkageSome people think that the wet ink film can be seen as bunk , and causes shrinkage is that the different surface tension lower wet ink film . In the film forming process , when the surface tension of the wet ink film is lower than the surface tension of the upper layer lower layer , will produce shrinkage. Sometimes, when the ink film shrinkage occurs about the wet ink film loses fluidity Jiuzheng shrinkage phenomenon is suppressed . But in some or gravure printing iron operations, as the temperature rises , there has been a wet ink film fluidity may occur secondary cratering .2 measures . Shrink holesTheoretically, we should improve liquidity shrink holes and leveling the wet ink film . On the one hand , to wet low surface tension of the ink film , on the other hand , on the substrate to have a good wettability . Specifically:1 ) where appropriate to add ink leveling agent ;2 ) using a solvent of low surface tension ;3 ) on the substrate surface wetting treatment ;4 ) control the ambient temperature and humidity ;5 ) Select the appropriate diluent ;6 ) Adjust the solvent evaporation rate , reduce ink viscosity , improve mobility , extending leveling time .3 cratering agentTo help you choose the right anti-cratering agents, briefly explain the various types of anti- pore-forming agent .1 ) Solvents : generally refers to a mixed solvent of high boiling point , it is both a good solvent , and Yen humectant. However, the solubility of the ink solvent evaporation system will deteriorate , resulting in shrinkage, or to produce printing inks iron boiling marks, blistering and other ills in baking .2 ) Resin : Compatibility constrained especially polyacrylic acid resin is preferred. An amount plastic packaging boxes wholesale of : acrylic resin 1% -1.5 % , 0.5% -1 % of epoxy resin , polyester accounts for about 1% .3 ) silicone resins : their function in addition to anti-cratering , there leveling , anti- film blurs and anti-foaming effect. Such as silicone oil in the promotion of domestic XH204 aqueous soluble acrylic ink in the ink flow , leveling and graced effect.In addition to the anti-cratering agent , a fluorine- silicon- based surface active agent for preventing the ink film shrinkage, improve leveling and gloss improved ink film is very effective .Although cratering , many types of leveling agent , but its use is limited, if used improperly, often counterproductive. Therefore, before using , to deal with different varieties , dosage, adding methods rigorous screening and testing.Product design and printing of bar codes should pay attention to the problemProduct Code if quality problems, feel free to users or operators will bring undue loss , great harm . Therefore essential to the proper design and product bar code printing . According to experts, the current bar code quality issues in the design , plate making, printing and other aspects are reflected.1 wrong colorsIn terms of design , the colors of the most serious errors . Its surface in many forms : such as: red and white bars . That red stripe with red printed bar codes can be printed although very pretty, but you can not strip is reading , because the scanning optical instruments issued mostly red , reflecting the difference between the two resulted in a very small , reflecting the smaller the difference difficult to identify . IOUs that use light colored printed bar , with a dark color printing thermoform trays blank and blank area , also known as anti- strip . I currently store the number of devices used were not reading this barcode.Correct colors should be printed with a dark color bar , with light-colored or white printed blank and blank areas. Thus , barcode designer must understand the requirements of the optical bar code and bar code printing standards in the design, not only consider beautiful.2 wrong bar code typesProduct barcode standards, each digit product code are seven modules. No more and no less , and now some of the barcode module organization substandard interests . Many types of bar codes , there is a product code , March yards, Codabar packaging boxes wholesale barcodes, 128 yards and so on. Different different barcode purposes only commodity code can be used for retail, while some used on the packaging of goods is not a commodity code , which is wrong.3 . Amplification factor is too small"Barcode national standard " provides barcode amplification factor should be 0.80-2.00 , while some barcode amplification factor irregularities .4 improper barcode printing positionPrinting position should avoid sealing seams and easy to wear , cover or packaging of local deformation . Improper product barcode printing position will lead to the extension of reading or misreading refused to read, to the mall and consumers no small trouble.Electric carving machine engraving head can not move TroubleshootingGermany Haier K405 a gravure plate manually by the company introduced the first electronic engraving machine , carving found engraved in the test head can not move, neither Pa Tau , nor rise.First suspected engraving head drive motor to current supply or current weak enough to drive . However, after replacing the drive current supplied efficacy board fault persists. They suspect that the drive motor malfunction near listen carefully carved head drive motor , the motor squeak sound. Open the drive motor wiring box cover, the feeling of touch has vibration , indicating a drive current , the motor is also transferred , but the engraving head does not move . Remove the motor carrier capacity , power test and found negative spiral spinning wheel motor with a speed of normal wear , but the hand holding the screw thread wheel immediately stop turning the wheel , the wheel is not turning the threaded feeling a little harder , a hand wheel and screw loosening slowly turn up , and gradually reach normal speed. Based on the above analysis of phenomena, may be part of the motor inside the mechanical transmission failure .Slightly smaller parts with pliers to pull out the back of the motor , when you unplug found to be a micro-motor , which is a reduction gear . Unscrew the two positioning with a screwdriver fastening screws , remove the gear and found a total of four groups of the reduction gear , the middle two nearly identical intends to pitch the same ; sides of the two groups are approximately the same , the same pitch . When a group of screw gear wheel split to close with a load , and found a large gear wheel round burst . According to the principles of mechanics , the four groups in the largest force reduction gear gear set is close to a group of threads should be round . After analysis, some factors may be overloaded , so close to the spinning wheel gear screw broken due to overload , so empty and can not carry gear .AR washed with petroleum ether large oil on the pinion , is the use of plastic the size of the gear cement AB , one hour after replacing .Note that in the process of installation of the first end of a further two clamshell blister will go to the tip of a toothpick inserted into the positioning hole , and then sequentially layer by layer , the reduction gear mount. Taking into account the bond fastness AB glue , you can gear the same group with similar swap , put it in the smallest micro-motor force side . Finally, remove the toothpicks, tighten the fastening screws , insert the micro-motor finishing circuits , power test , everything is normal , troubleshooting.

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