Nitrofreeze® cryogenic deburring provides manufacturers and machine shops with a better way to remove burrs from small plastic parts. Burrs, a type of manufacturing defect, are raised areas on the surfaces of parts produced with milling, turning, or machining operations. Although some CNC equipment can remove burrs in-line, deburring is usually performed off-line for small plastic parts like gears, valves, and connectors. That slows production while adding costs and introducing risks. Manual Deburring is Slow, Expensive, and Risky Manufacturers and machine shops can remove burrs by hand, but m ..read more

Nitrofreeze® cryogenic deflashing is a quick, consistent, and cost-effective way to remove flash from batches of molded rubber and plastic parts. Flash, a type of manufacturing defect, is excess material that forms on the surfaces of parts produced with injection, compression, or transfer molding. Flash detracts from a part’s appearance, but it can also cause problems with sealing surfaces or product assembly. Hand Deflashing vs. Cryogenic Deflashing Molders can remove flash by hand, but manual trimming is slow, expensive, and labor-intensive. A worker with a hand tool can deflash only one par ..read more

Plastic molding can produce parts with flash, excess material that forms on part surfaces. During injection molding, molten plastic may escape through the mold’s parting line. Improper venting, low clamping pressure, low material viscosity, and uneven flow can also cause flash formation. In addition, injection molding flash sometimes occurs after the gate runners are removed. Flash also occurs during compression molding, typically because the material charge was loaded in excess. Other types of plastic molding, such as transfer molding and blow molding, can produce parts with flashing, too. So ..read more

Nitrofreeze® cryogenic deburring removes burrs from PEEK gears without affecting part geometry or surface finish. Unlike other burr removal methods, cryogenic deburring removes only the surface imperfections left behind by machining. The edges on gear teeth are maintained without unwanted rounding, and the Nitrofreeze® process can deburr challenging geometries and hard-to-reach areas. Keep reading to learn more and contact Nitrofreeze® when you’re ready to discuss your application. PEEK Gears and Burrs Polyether ether ketone (PEEK) is an engineering thermoplastic with excellent mechanical prop ..read more

Nitrofreeze® cryogenic deflashing removes flash from injection-molded PPS parts without affecting critical dimensions or surface finish. This proven process removes gate vestiges, flash that extends from the surface of an injection-molded part after gate runners are removed. Cryogenic deflashing also removes flash from hard-to-reach areas such as cross-holes, blind holes, and other challenging part geometries. Most importantly, this cost-effective process is also quick and consistent. Injection Molded PPS Parts Injection-molded polyphenylene sulfide (PPS) combines exceptional mechanical streng ..read more

Medical plastics machining can produce complex parts with excellent dimensional stability. During CNC machining operations, however, milling and drilling can stretch part surfaces. If the workpiece material contains a crack, this stretching may cause the crack to grow and fracture. This creates burrs, raised areas that can interfere with part seating, sealing, or assembly. Nitrofreeze® cryogenic deburring can remove burrs without affecting the part geometry or surface finish that medial plastics machining achieves. Our patented process is especially effective at removing burrs from blind holes ..read more

Medical plastic injection molding can produce high volumes of tight-tolerance parts for medical devices and equipment. During the injection molding process, however, excess material known as flash can form on the surfaces of parts. Cryogenic deflashing can safely, cleanly, and cost-effectively remove this unwanted plastic flash without affecting critical part tolerances. There are many other benefits as well. Nitrofreeze® Cryogenic Solutions of Worcester, Massachusetts (USA) provides cryogenic deflashing services to plastic injection molders and medical device manufacturers. Our patented proce ..read more

Nitrofreeze® cryogenic deflashing removes mold flash from parts produced using silicone overmolding, a multi-step process that molds silicone rubber over parts made from another material. Examples include medical devices where silicone is molded over metal to provide protection against water, heat, impact, and electrical shock. Silicone can also be molded over plastic during two-shot molding. Silicone Overmolding and Part Deflashing     Silicone overmolding can use either liquid silicone rubber (LSR) or silicone high-consistency rubber (HCR). LSR overmolding applications include ..read more

Nitrofreeze® Cryogenic Solutions is ITAR registered and NIST 800-171 certified. If your company is part of the defense supply chain, or if you work in related industries such as aerospace, you may be required to use vendors with these designations. When you work with Nitrofreeze®, you can be confident we’ll safeguard your project information while offering the cryogenic services you need. Examples include: Cryogenic deburring for efficiently removing burrs from machined plastic and metal parts. Cryogenic deflashing for safely removing mold flash from plastic and rubber parts. Dry ice blasting ..read more

Nitrofreeze® cryogenic deflashing for insert molding gently removes flash from parts and products like electrical connectors and surgical tools. During insert molding, a plastic or rubber material is molded over a substrate that has been inserted into the mold. In the case of an electrical connector, this substrate is an electrically conductive metal. The plastic or rubber provides electrical insulation, and the molding process combines multiple materials to form a single part without the need for secondary assembly. Mold Flash and Electrical Connectors With overmolded electrical connectors, i ..read more