Gauging Thickness

Different limiting stresses are observed depending on gauge thickness. The higher limits are characteristic of thicker gauges. 

Tube OD In. B.W.G. Gauge Thickness In. Internal Area ln.2 Ff2 External Surface Per Ft Length Ft= Internal Surface Per Ft Length... 

To determine the outside heat transfer area of a heat exchanger bundle consisting of 100 tubes, in. O.D. tubing, 18 BWG (gauge thickness) X 16 ft long. For fixed tubesheets (2), thickness is 1.0 in. each. 

Any instrument for measuring, e.g., pressure gauge, thickness gauge, strain gauge. 

Gauge thickness of various thin materials Measurement of dust and pollutant levels 90Sr Survey meters... 

Gauge thickness of thin materials Oil exploration tracer 151Sm Heat source... 

Fiq. 6-8. Installed extra cost for heavy gauge thickness conveyor troughs based on -in. thickness of carbon steel (ENR = 750). 

Production of nonstandard sheet metal gauge/ thickness... 

On any machines, if you increase the roll space without increasing the diameter, you must reduce the maximum gauge thickness that can be formed. Common to all roll shafts are the following ... 

The web of film coming off of the tower may be converted into product inline, or it may be wound onto rolls for later conversion. In systems where it is wound into roll packages, the entire haul-ofif assembly is often located on an oscillating turntable. The benefit to oscillating the haul-off is to uniformly distribute any minor gauge (thickness) variations. Otherwise, a wound roll containing high and low spots would be created. 

Gauge— Thickness of the steel used to manufacture a drum, lower the gauge, the thicker the material. 

Thin-gauge (thickness less than 0.060 in) thermoforming uses material supplied in a roll. It is the high-volume variety of this process and is generally associated with packaging. With the exception of disposables, such as cups and plates, it is not generally used for product manufacturing. 

There is a growing but very still limited market for products formed from sheet between about 1.5 mm (thin-gauge) and 3.0 mm (heavy-gauge) thickness. Usually, products of this thickness are either too expensive to be disposable or too thin to be industrial or permanent products. One major application is in the manufacturing of very large volume drink cups (1/2 L or more). 

Plasma arc cutting has become an essential requirement for any properly equipped maintenance department. It provides the best, fastest, and cheapest method of cutting carbon or alloy steel, stainless steel, aluminum, nonferrous metals, and cast iron. In fact, it will cut any conductive material. The cuts are clean and precise, with very litde dross or slag to remove. The heat is so concentrated within the immediate area of the cut that very litde distortion takes place (see Figure 24.28). On gauge thickness material, the speed is limited only by the skill of the operator. 

Gases that are hazardous should always be stored and dispensed from some type of enclosure. Gas cabinets are used in many semiconductor fabrication plants. In general, gas cabinets are required to be constructed from steel that has a minimum 12 gauge thickness. They also must... 

Wet film gauging Thickness of a wet film can be determined by any of several gauges which consist of a series of calibrated indentations along the edge of a handheld ruler (Fig. 14.25). Probable thickness of the dried film can be calculated if solids content by volume is known. 

Blister pack is one of the most common applications for rigid PVC thermoforming. Since virtually all blister pack is clear, resin clarity is often a criteria for resin selection. Although most blister pack gauge thickness ranges from 0.02 to 0.25 mm (0.0008 to 0.001 in), differences in resin clarity can sometimes be observed in these applications. 

---