Anaerobic Adhesives Reduce Costs and Increase Reliability For Industries

Anaerobic screw locking adhesives

Threaded fasteners set and hold tolerances on assemblies ranging from light equipment to heavy machinery. In many cases, fasteners that self-loosen during equipment operation can contribute to wear and fatigue, leading to poor operating tolerances, misalignment, and sometimes catastrophic equipment failures that cost millions of dollars in unplanned downtime each year. Various types of different loads such as vibration and shock, thermal expansion and contraction, and micro-movements reduce the clamping force on the assembly, ultimately causing machine failure. On a case-by-case basis, anaerobic threadlocking technology has proven to be more reliable and cost-effective for preventing loosening of threaded fasteners and leakage in a variety of applications when compared to mechanical fasteners such as spring washers, wire retainers and nylock nuts. Get more here about this or similar topics electronics assembly adhesives.

Liquid threadlockers have become one of the most reliable and cost-effective ways to ensure a bolted joint stays locked and tight throughout its lifetime. Applied dropwise to fastener threads, liquid anaerobic adhesives fill the grooves of the threads and cure to a hard, thermosetting plastic when exposed to active metal ions in the absence of air. Anaerobic adhesives bond the threaded parts together, ensuring that the mating parts ultimately function as one bonded part that resists failure and offers the greatest possible reliability.

Mechanical devices such as spring washers, wire retainers and nylock nuts are expensive and ineffective in preventing loosening of threaded fasteners caused by lateral sliding movement. They also do not seal or prevent corrosion within the fastener assembly and must be properly sized for the specific fastener, resulting in large and expensive parts inventories.

Most assemblies held together by threaded fasteners will eventually be disassembled for repair, maintenance, or adjustment. For this purpose, industrial anaerobic adhesives are available in different grades: low-strength threadlockers for easy removal, medium-strength threadlockers that can be removed with traditional hand tools, and high-strength or "permanent" threadlockers that are used for very demanding assemblies with are suitable for minimal maintenance. Even the high-strength threadlockers can be removed with standard hand tools after exposure to direct exposure to high temperatures of 232-260°C (450-500°F) for approximately five minutes.

The use of anaerobic adhesives reduces costs and increases reliability for the industry

Multiple case studies from various manufacturing and maintenance applications in the industry demonstrate that anaerobic threadlockers increase the reliability of threaded fasteners and reduce costs associated with downtime and unplanned recalls.

In a case study involving hydropulpers - machines designed to agitate a mixture of paper pulp and water to prevent dewatering until that mixture can be used in the papermaking process, extreme vibration of the machine led to problems holding the mounting screws for the paper pulp Transmission. Even with proper tightening procedures, the bolts had to be retorqued every two weeks, requiring additional labor costs and downtime. Unplanned loosening caused alignment issues and equipment downtime, resulting in significant lost productivity and maintenance costs. After applying anaerobic thread-locking adhesives to all mounting bolts and nuts during a recent downtime, loose bolts no longer caused problems and held the hydropulper gear in place until the next scheduled annual preventive maintenance.

Related info: https://www.epoxyadhesiveglue.com/consumer-electronics-assembly/