The traditional solution with corrosion problems was to seal the stepper motor in order to prevent moisture that leads to inside corrosion. Shaft seals and end cap/housing seals will delay, but not stop the incursion of moisture into the stepper motor. Moisture will finally find a way through any seal helped by temperature fluctuations. Once the moisture is inside the motor, the seals act as a barrier to any remotion of the moisture. In addition, shaft seals normally cause a loss of 4 to 20% of motor torque due to the rubbing friction. What's more, as the motors repeatedly carry out cycles of heating and cooling again and again, the air inside the stepper motor expands and shrinks. As the air inside the step motor shrinks, a small amount of moisture is inhaled inside the stepper motor. This eventually bring about some internal corrosion, to which hybrid stepper motors are susceptible in particular.
A New Design Technique For Stepper Motor Prevent Corrosion
Currently, a new design technique produces corrosion-proof and waterproof stepper motors, extending the stepper motor life in harsh rugged environment. Stepper motors used at outdoors condition are susceptible to temperature extremes and moisture, causing internal corrosion that quickly shortens stepper motor life, and causing early stepper motor failure also. However, the new technique to preventing corrosion and early failure uses a system of rugged corrosion proof coatings that are applied to all metallic surfaces both inside and outside the stepper motor, protecting them from moisture and corrosion.
The coatings that were antecedently used were not rugged enough to protect the soft-iron magnetic and metallic materials inside a stepper motor during its design life. The new technique applies the coating to every surface and structure inside and outside the stepper motor, including the stepper motor rotor, stator, and housing. It essentially coats every surfaces that could potentially rust, such as steel and aluminum. The material selections and coatings are tailored for each stepper motor component. For example, the permanent magnets, aluminum end housings, and steel laminations use coatings, and promoted base materials as required to protect the components from corrosion, while maintaining the stepper motor's performance.
Established in 1992, OSM Technology Co.,Ltd. began as a consulting company specializing in Stepper motor applications. Throughout its history, OSMTEC has continued to develop its capabilities in the areas of design engineering, manufacturing, and customer service. In 1995, OSMTEC expanded its operatings to include the manufacturing of its own Hybrid Stepper Motor. Since then, the company has developed its product line to include Linear Actuator and Brushless DC Motor.
Our operations are certified to ISO 9001:2000 and QS 9000. All products carry major approvals such as CE and ROSH. With OSMTEC Technology, you get the highest quality products, all made possible by the most dedicated people.
Email: [email protected]
Phone: (+86)574 28837284
Adress: No. 535, Renmin Road, Jiangbei District Ningbo CN 315000
15-4, #799 Hushan Rd., Jiangning District, Nanjing CN, 211100
Powered By OSMTEC © 2022