Abstract: An aluminum plastic film for a lithium battery and a method for manufacturing the same are provided. The method includes steps as follows: preparing a polyolefin adhesive; coating the polyolefin adhesive onto one surface of an aluminum foil layer; disposing an inner polyolefin layer onto the polyolefin adhesive; and drying the polyolefin adhesive, so that a polyolefin adhesive layer is formed between the aluminum foil layer and the inner polyolefin layer. Components of the polyolefin adhesive include a modified polyolefin polymer and a hardener. The modified polyolefin polymer has a modified group, a structure of the modified group contains maleic anhydride, and a molecular weight of the modified polyolefin polymer ranges from 100,000 g/mol to 200,000 g/mol.

Abstract: A spike structure made of different materials includes: a sole protruding portion, an interface member and a cleat member. The interface member is disposed between the sole protruding portion and the cleat member, so that the sole protruding portion does not directly contact the cleat member, but the sole protruding portion and the cleat member are in contact with the interface member, and because the interface member is easily bonded to the cleat member, the interface member and the cleat member can be fixedly combined by bonding. Besides, the interface member and the sole protruding portion are made of hard materials with similar hardness and are not easily deformed when they are in contact with each other. Therefore, the interface member and the sole protruding portion are not easily slipped off.

Abstract: A spike structure made of different materials includes: a sole protruding portion, an interface member and a cleat member. The interface member is disposed between the sole protruding portion and the cleat member, so that the sole protruding portion does not directly contact the cleat member, but the sole protruding portion and the cleat member are in contact with the interface member, and because the interface member is easily bonded to the cleat member, the interface member and the cleat member can be fixedly combined by bonding. Besides, the interface member and the sole protruding portion are made of hard materials with similar hardness and are not easily deformed when they are in contact with each other. Therefore, the interface member and the sole protruding portion are not easily slipped off.

Abstract: An optical calibration and testing device for machine tools includes a light source unit, a beam splitter, and at least one photo detector. The light source emits a laser light hitting the beam splitter and is split into two beams. One is perpendicular to the foundation of the light source unit, and the other is parallel with the foundation so as to test straightness, inclination angle, verticalness, vertical column inclination, vertical column parallelism and guide bar inclination of a machine tool. If there is no tested error, the position of the testing light spot coincides with that of the initial light spot. If there is an error, the position of testing light spot varies according to the error.

Abstract: A geometric error measuring device includes a measuring module and at least one (quadrant) photodiode. The measuring module has an emitting deice, which may emit at least one light ray; the photodiode may receive the incident ray. Also, the trajectory of the incident ray is parallel with the direction of measurement. If there is no geometric error, the position of the incident light ray will coincide with the position of the measured light ray. If there is a geometric error, the position of the measured light ray will not coincide with the position of the incident light ray. After the data are processed and calculated, geometric errors in straightness, squareness and rotational angles (pitch, yaw and roll) may be obtained. These geometric errors may then be corrected in the setup of a machine.

Abstract: An optical calibration and testing device for machine tools includes a light source unit, a beam splitter, and at least one photo detector. The light source emits a laser light hitting the beam splitter and is split into two beams. One is perpendicular to the foundation of the light source unit, and the other is parallel with the foundation so as to test straightness, inclination angle, verticalness, vertical column inclination, vertical column parallelism and guide bar inclination of a machine tool. If there is no tested error, the position of the testing light spot coincides with that of the initial light spot. If there is an error, the position of testing light spot varies according to the error.

Abstract: A geometric error measuring device includes a measuring module and at least one (quadrant) photodiode. The measuring module has an emitting deice, which may emit at least one light ray; the photodiode may receive the incident ray. Also, the trajectory of the incident ray is parallel with the direction of measurement. If there is no geometric error, the position of the incident light ray will coincide with the position of the measured light ray. If there is a geometric error, the position of the measured light ray will not coincide with the position of the incident light ray. After the data are processed and calculated, geometric errors in straightness, squareness and rotational angles (pitch, yaw and roll) may be obtained. These geometric errors may then be corrected in the setup of a machine.