Surface chrome-plating process for minisize worm

Abstract

A surface chrome plating process of a micro worm, comprising the following steps: (a) grinding burrs (b) cleaning and degreasing (c) surface treatment (d) inspection, the present invention adopts the vacuum chrome plating method to increase the density and stability of the chrome plating layer on the surface of the worm Chemical properties ensure the smooth surface of the worm with low resistance. Secondly, the thickness of the chrome plating layer increases, the wear resistance is good, and the service life of the worm is extended. At the same time, the chrome plating method has low pollution, and there is no chrome plating waste liquid, and there is no heavy metal chromium flowing into the environment. High economic and ecological benefits.

Description

technical field

[0001] The invention relates to a chrome plating process for worms, in particular to a vacuum chrome plating process for micro worms. Background technique

[0002] Worm gears are commonly used to transmit motion and power between two interleaved shafts. The worm gear and the worm are equivalent to the gear and the rack in the middle plane, and the worm is similar to the screw in shape. The worm can easily rotate the gear, but the gear cannot rotate the worm. This is because the lugs on the screw are so shallow that friction between the gear and the screw keeps the screw in place when the gear tries to turn it. As one of the commonly used components in electronic products, the micro worm is very easy to further reduce the diameter of the tooth groove or appear at the tooth groove due to long-term friction due to its small diameter and further reduction in the diameter of the tooth groove. Bending, so it is necessary to chrome-plate the outer surface of the s...

Examples

Embodiment 1

[0016] A surface chrome plating process for a miniature worm, comprising the steps of:

[0017] (a) Grinding burrs: Use water abrasive paper to polish the surface of the worm, especially the sharp edges and corners, so that no burrs are seen or the feel of no thorns is wiped with the thumb;

[0018] (b) Cleaning and degreasing: clean the worm after step (a) in clear water, then soak in 50% alcohol liquid for 5 minutes and drain;

[0019] (c) Surface treatment: place the worm treated in step (b) on the workpiece rack in the vacuum equipment, and adjust the vacuum degree in the vacuum equipment to 7-8X10 -3 After Pa, open the throttle valve, and make the workpiece holder rotate slowly, the rotation speed is 4r / min, then open the inert gas, use cathode magnetron sputtering for 4min, finally close the inert gas, and carry out 6min ionization under high vacuum conditions. Bombarded in chrome.

[0020] (d) Inspection: Take out the worm after the treatment in step (c), rinse it wit...

Embodiment 2

[0022] 1, a kind of surface chrome plating process of miniature worm, it is characterized in that: comprise the steps:

[0023] (a) Grinding burrs: Use water abrasive paper to polish the surface of the worm, especially the sharp edges and corners, so that no burrs are seen or the feel of no thorns is wiped with the thumb;

[0024] (b) cleaning and degreasing: clean the worm after step (a) in clear water, then soak in 80% alcohol liquid for 10 minutes and drain;

[0025] (c) Surface treatment: place the worm treated in step (b) on the workpiece rack in the vacuum equipment, adjust the vacuum degree in the vacuum equipment to 7-8X10-3Pa, open the throttle valve, and use The workpiece holder rotates slowly at a rotation speed of 5r / min, then turns on the inert gas, and uses cathode magnetron sputtering for 10 minutes, and finally turns off the inert gas, and conducts 10 minutes of ion bombardment chromium plating under high vacuum conditions;

[0026] (d) Inspection: Take out th...

Embodiment 3

[0028] 1, a kind of surface chrome plating process of miniature worm, it is characterized in that: comprise the steps:

[0029] (a) Grinding burrs: Use water abrasive paper to polish the surface of the worm, especially the sharp edges and corners, so that no burrs are seen or the feel of no thorns is wiped with the thumb;

[0030] (b) Cleaning and degreasing: After cleaning the worm treated in step (a) in clear water, place it in 60% alcohol liquid for 6 minutes and then drain it;

[0031] (c) Surface treatment: place the worm treated in step (b) on the workpiece rack in the vacuum equipment, adjust the vacuum degree in the vacuum equipment to 7-8X10-3Pa, open the throttle valve, and use The workpiece holder rotates slowly at a rotation speed of 5r / min, then turns on the inert gas, and uses cathode magnetron sputtering for 6 minutes, and finally turns off the inert gas, and conducts 8 minutes of ion bombardment chromium plating under high vacuum conditions;

[0032] (d) Inspe...

technical field

[0001] The invention relates to a chrome plating process for worms, in particular to a vacuum chrome plating process for micro worms. Background technique

[0002] Worm gears are commonly used to transmit motion and power between two interleaved shafts. The worm gear and the worm are equivalent to the gear and the rack in the middle plane, and the worm is similar to the screw in shape. The worm can easily rotate the gear, but the gear cannot rotate the worm. This is because the lugs on the screw are so shallow that friction between the gear and the screw keeps the screw in place when the gear tries to turn it. As one of the commonly used components in electronic products, the micro worm is very easy to further reduce the diameter of the tooth groove or appear at the tooth groove due to long-term friction due to its small diameter and further reduction in the diameter of the tooth groove. Bending, so it is necessary to chrome-plate the outer surface of the s...

Examples

Embodiment 1

[0016] A surface chrome plating process for a miniature worm, comprising the steps of:

[0017] (a) Grinding burrs: Use water abrasive paper to polish the surface of the worm, especially the sharp edges and corners, so that no burrs are seen or the feel of no thorns is wiped with the thumb;

[0018] (b) Cleaning and degreasing: clean the worm after step (a) in clear water, then soak in 50% alcohol liquid for 5 minutes and drain;

[0019] (c) Surface treatment: place the worm treated in step (b) on the workpiece rack in the vacuum equipment, and adjust the vacuum degree in the vacuum equipment to 7-8X10 -3 After Pa, open the throttle valve, and make the workpiece holder rotate slowly, the rotation speed is 4r / min, then open the inert gas, use cathode magnetron sputtering for 4min, finally close the inert gas, and carry out 6min ionization under high vacuum conditions. Bombarded in chrome.

[0020] (d) Inspection: Take out the worm after the treatment in step (c), rinse it wit...

Embodiment 2

[0022] 1, a kind of surface chrome plating process of miniature worm, it is characterized in that: comprise the steps:

[0023] (a) Grinding burrs: Use water abrasive paper to polish the surface of the worm, especially the sharp edges and corners, so that no burrs are seen or the feel of no thorns is wiped with the thumb;

[0024] (b) cleaning and degreasing: clean the worm after step (a) in clear water, then soak in 80% alcohol liquid for 10 minutes and drain;

[0025] (c) Surface treatment: place the worm treated in step (b) on the workpiece rack in the vacuum equipment, adjust the vacuum degree in the vacuum equipment to 7-8X10-3Pa, open the throttle valve, and use The workpiece holder rotates slowly at a rotation speed of 5r / min, then turns on the inert gas, and uses cathode magnetron sputtering for 10 minutes, and finally turns off the inert gas, and conducts 10 minutes of ion bombardment chromium plating under high vacuum conditions;

[0026] (d) Inspection: Take out th...

Embodiment 3

[0028] 1, a kind of surface chrome plating process of miniature worm, it is characterized in that: comprise the steps:

[0029] (a) Grinding burrs: Use water abrasive paper to polish the surface of the worm, especially the sharp edges and corners, so that no burrs are seen or the feel of no thorns is wiped with the thumb;

[0030] (b) Cleaning and degreasing: After cleaning the worm treated in step (a) in clear water, place it in 60% alcohol liquid for 6 minutes and then drain it;

[0031] (c) Surface treatment: place the worm treated in step (b) on the workpiece rack in the vacuum equipment, adjust the vacuum degree in the vacuum equipment to 7-8X10-3Pa, open the throttle valve, and use The workpiece holder rotates slowly at a rotation speed of 5r / min, then turns on the inert gas, and uses cathode magnetron sputtering for 6 minutes, and finally turns off the inert gas, and conducts 8 minutes of ion bombardment chromium plating under high vacuum conditions;

[0032] (d) Inspe...