Cutting performance tests

Subsequently, Calvert (R-19, p. 228) has combined mathematical modehng with performance tests on a variety of industrial scrubbers and has obtained a refinement of the power-input/cut-size relationship as shown in Fig. 14-130. He considers these relationships sufficiently reliable to use this data as a tool for selection of scrubber type and performance prediction. The power input for this figure is based solely on gas pressure drop across the device. 

Sample-to-Detector Distance Perform test exposures and check that no relevant peak is cut on the detector image - outside the peaks there should be a considerable amount of the diffuse tail of the scattering recorded. If the distance is too short only for some of the samples one may consider to first study other samples and then to re-adjust the beamline. Assess the extra effort and anticipate that the beamline scientist might not be pleased. It is better practice to plan ahead and to test some materials for future beamtimes. Estimate now the distance needed next time. 

The PQ is the phase in which either a technical system is tested over a long period of time (e.g., water system), or a complex technical system is tested overall (connected filling line). For many systems OQ is the last phase performed during qualification. If there are only a few performance tests needed, it might be more practical to include them during OQ or process validation. Combining OQ and PQ decreases the number of documents (less documentation work in the future) and cuts approval time and effort. Again, the procedure for PQ is the same as for IQ and OQ ([develop PQ protocols, approve PQ protocols (by the quality assurance, production, and technical departments), perform PQ, work out the PQ report, and approve the PQ report (by the quality assurance, production, and technical departments)]. The documentation and test description are identical to those in the OQ phase. 

To investigate the influence of self-organization on the mechanical properties of the composites, the compacts were cut into test pieces 5 x 3 x 20 nun in size with a diamond saw for a three-point bending test. The three-point bending tests were performed at a crosshead speed of 500 pm/min and a span of 15 nun with... 

The cutting performance of these new materials was tested in a direct comparison with similarly hard but single phase (absolutely oxidation resistant) pure alumina ceramics. The results are discussed in Section 4.4.4. 

Tilsatec Rhino" " offers more cut resistance per gram weight at a lower price based on Cut Protection Performance Tests ANSI Level 4 5 cut resistance reduces worker injuries and injury-related costs... 

Film samples were obtained by the technique of pouring from solution, which is in some cases used to accomplish similar tasks imder laboratory conditions. The basic components were PQ, PPMA and organic solvent. This resulted in homogeneous, uniformly colored films of size greater than 10 x 10 cm and thickness from 80 to 350 pm, whose elasticity allowed samples of various shape to be cut out of them. Here, volume PQ concentration in film samples was several times that in bulk ones. Performed tests have shown that samples, manufactured by given process, retain light-sensitive properties after storing at room temperature for a year. 

Corrosive Oils. Several services depend in part on the corrosiveness of an oil at least in certain temperature ranges. Such oils as extreme-pressure lubricants for hypoid or heavy-duty gears, and cutting oils require the addition of sulfur, chlorine, or compounds of these. Suitable corrosion tests and special performance tests are required for each service. 

The cutting performance of end mills is investigated at various cutting speeds, feed rates and depths of cut. Since cutting tests are time and material consuming, a lH factorial design of experiment has been used and the comparison between the performance of the bonded and... 

The cross-cut adhesion test provides a rating for the adhesion of a surface material to a plastic substrate. The original ASTM standard D3359-02 for the cross-cut adhesion test was developed to measure the adhesion between thin paint films and flat, metal substrates. This test, however, is not well suited for three dimensional plastic parts that are covered with fabric. It will be shown in this study that improper cross-cut testing protocol can result in false failures and artificially low adhesion performance scores. A modified cross-cut adhesion test procedure is documented here that is based on the ASTM method and is applicable to fabric covered parts. 

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