With the acquisition of CogniTens, a provider of shop-size workpiece contactless measurement technology, the brand cluster of Hexagon Metrology Group continues to expand. Currently, the group has well-known measurement brands such as Brown & Sharpe, DEA, Leitz, Leica Geosystems, Sheffield, Romer, PC-DMIS, Tesa and the latest CogniTens.
Ola Rollen, CEO and President of Hexagon AB, said, "The acquisition of CogniTens has enabled Hexagon Group to acquire new technologies in high-speed, non-contact, shop floor environment measurement and scanning segments. It is expected that CogniTens The combination of 3D measurement products with Leica Geosystems' laser tracker technology and Romer's articulated arm measuring machine technology will strengthen Hexagon's position in all segments of the fast-growing sheet metal non-contact measurement market."
According to William Fetter of Hexagon Measurement Group, “CogniTens technology is a structured white light measurement technology that captures images of workpieces and provides a fast three-dimensional representation of the contours of the workpiece. This technology can be integrated into automated machining units and used in The 3D contour measurement of the workpiece, for example, when the car body is slowly passing through the production line, obtains its relevant dimensional information. In other words, it can be integrated into the manufacturing environment."
Fetter said, “We just launched a 1.2m portable measuring arm – the Romer Infinite 5012. It can be quickly tested in the work hood of a vertical machining center during the machining cycle. Other possible applications include what is needed Benchtop measurements, CAD model comparisons, desktop projects, and fast dimensional measurements inside the machine at any location."
The Infinite 5012 measuring arm features wireless communication (WIFI) and onboard battery drive (for portability without power cord). In addition, the automatic probe detection feature allows quick change of the probe without recalibration; its application packages include PCDMIS Portable, DOCS and Delcam PowerInspect.
Using Hexagon's PC-DMIS NC software, you can create inspection paths in standard G and M formats, and develop, test, and adjust CNC inspection programs offline in 2D and 3D CAD modes without interrupting CNC machine tools. . The generated measurement data can be automatically collected and evaluated without operator intervention, and the measurement result information can be transmitted in a file format that best suits the user's requirements. When the workpiece is machined on the machine, the user can use the process control feedback function to monitor the machining process, compare the measurement results of the workpiece with the CAD model, and track and evaluate all machining processes using the built-in statistical process control (SPC) module. .
For sub-micron size and geometric tolerances of shaft parts, the production floor does not seem to be the most advantageous measurement environment. Hommel-Etamic's Opticline non-contact CNC shaft measuring system is a highly flexible measuring system. It is suitable for the inspection of shaft parts with a diameter of 0.2-480mm and a length of 1-2500mm with a measuring accuracy of ±1μm. Optical measuring machines can be used to detect complex parts (such as artificial hip joints, shaftings, turbine blades, etc.) produced in different sizes in medical parts, aerospace, and automotive industries. Opticline can be used for both on-site statistical process control (SPC) inspection stations and 100% full inspection of on-site fully automated machining systems.
The Opticline shaft measurement system includes gear shafts, camshafts, crankshafts, joint shafts and engine valves. The optical measuring head can measure the contour, diameter, length, roundness, concentricity, conicity, angle, flatness, parallelism, eccentricity, stroke, thread and other parameters of the workpiece through one scan. Typical applications for this range of measuring machines include manufacturing inspection, automatic tool correction, dimensional measurement, prototype sample measurement, machine tool installation, and more.
Opticline performs photoelectric scanning of the workpiece according to the projection principle. Thanks to the high resolution of the measurements obtained, the complete contour of the workpiece can be evaluated with high precision. During the rotation of the workpiece, the outer contour data can also be recorded to achieve dynamic measurement. If there is no ready-made measurement program, the workpiece can be loaded, then scanned completely, and the scan data stored in the program memory; then the characteristics of the workpiece being measured are determined according to the technical specifications of the product (such as nominal values ​​and tolerances). Within 5 minutes, it is possible to create a new standard inspection plan with approximately 20 features.
In order to meet the urgent needs of manufacturers for economical shop coordinate measuring machines with high levels of measurement accuracy and measurement repeatability, Wenzel GmbH (Germany) and Xspect Solutions Inc. (Xspect Solutions Inc.) introduced the X-Checker series. Coordinate measuring machine. The X-Checker measuring machine is designed with a X-type base cast from mineral resin and is designed to be measured in production plants where environmental conditions vary widely. The measuring machine combines a stable granite component with a frictionless shafting and a pneumatic balancing system for consistent measurement repeatability and reproducibility (gage R&R).
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CMC stands for carboxymethyl cellulose. However, CMC is more correctly the sodium salt of carboxymethyl cellulose.
CMC has the ability to impart viscosity to aqueous solutions. CMC is pseudoplastic , thixotropic and essentially non-thixotropic rheology by nature .By choosing the right cellulose gum type, the formulator has the ability to achieve the desired rheology for any aqueous system, including suspensions and emulsions. Besides controlling the rheology, CMC is also known for its excellent water retaining capacity.
CMC used in tobacco industry as a viscose.
The CMC is used as a binder and a film-forming substance in regenerating tobacco to make tobacco, and is mixed with tobacco stems, tobacco leaves and the like, and rolled to prepare a flake yarn.
Tobacco Grade CMC,Chemical CMC Tobacco Grade,White Powder CMC In Tobacco Industry
China National Huachen Energy Group Co., Ltd. , http://www.chc-chem.com