It is easy to produce sticky molds, and the moving parts fail to cause damage to the surface of the mold. The stress generated during steel quenching is the result of the superposition of thermal stress during cooling and the microstructure stress during phase change, and quenching stress is the cause of deformation and cracking, and it must be tempered to eliminate stress. The shutter-release button AE-L in the menu locks the exposure by pressing the shutter halfway after it is turned on, but the lock fails when the shutter-release button is released. If it is closed, pressing the shutter button halfway will not lock the exposure.

The unmanned vending machine shipping gearbox is annealed with a thickness of 25mm per hour of heat retention. The increasing size of mold forming parts and the high productivity of parts require a mold with multiple cavities, resulting in increasingly large-scale molds, large tonnage large molds up to 100 tons, a mold hundreds of cavities, thousands of cavities, requiring mold processing equipment large workbench. It is better to wear gloves to operate, take out each small accessory and put the ribbon in the groove of the lower piece, do not mess up, it is folded up in order and completed. Gently pull the press rod outward, then move it up to erect the press rod and move the print head to the middle for easy cartridge removal and installation.