Insertion blade

Small complex tool steel parts are being made by conventional compaction and sintering in vacuum to near theoretical density. AppHcations include spade drills, knife blades, slotting cutters, insert blades for gear cutters, reamer blades, and cutting tool inserts. 

It is not clear why inserting blades in the cone as described by Takesono and Ohkawa and coworkers [18,34] should assist defoaming because the blades would presumably hinder the pumping process and diminish the shear force on the foam. The relatively poor performance of spinning cones found by these workers may possibly be attributable to that factor. 

B94.8-1967(R1987) Inserted Blade Milling Cutter Bodies... 

Acoustical Louvers. Acoustical louvers are used in building mechanical systems when exterior walls are penetrated for fresh air intake, exhaust, or rehef air, in situations where the impact of HVAC noise is of concern in the surrounding environment. The louvers consist of a series of hoUow sheet metal blades. The bottom faces of the louver blades are perforated and the blades are filled with fibrous sound-absorbing material. Typical acoustical louvers are 20 cm (8 in.) to 30 cm (12 in.) in depth. The amount of insertion loss they provide is limited. 

A machine with approximately 1000 needles continuously produces a fabric 5-m wide. The assembly process is more complex, slower, and more expensive than tufting. The pile yam and stitch yam are inserted into the knitting needle, and the stuffer yam is interlocked with the others through a separate feed mechanism of the machine. As with tufting, the loops of the pile fabric formed are sHt, creating the desired individual blades. 

Solid-Type Stabilizers. (See Figure 4-180.) These stabilizers have no moving or replaceable parts, and consist of mandrel and blades that can be one piece alloy steel (integral blade stabilizer) or blades welded on the mandrel (weld-on blade stabilizer). The blades can be straight, or spiral, and their working surface is either hardfaced with tungsten carbide inserts or diamonds [57,58]. 

Grinding, cutting Inserts Twist drills Whetstones Industrial knives Circuit-board drills Oil-drilling tools Slitter blades Surgical scalpels Saws... 

The full description of the deep chemical peel procedure is found in Chapter 8. Before the peeling, the subcision (subcutaneous incision) technique is used to free the fibrous bands from the base of the scars. For this purpose we use an i8-gauge 1.5-inch NoKor Admix needle (Becton Dickinson and Co). This needle has a triangular tip similar to No. 11 blade (Fig. 9.5). it allows smooth separation of fibrous cords. The needle is inserted through a skin surface, and its sharp edges are maneuvered under the defect to make subcutaneous cuts or incisions. The depression... 

The fetal head or whole body is sectioned on a slab of dental wax or equivalent, using a sharp razor blade. The specimen is placed onto the wax block and the razor blade inserted between the upper and lower jaws and, with firm even pressure, the upper part of the head is cut in a plane (along the rostro-occipital axis) just below the ears. 

The red end must be assembled adjacent to the primer (Ref 42, p 86). Ignition cartridge is inserted into fin assembly ahead of the primer. The shaft, in turn, is screwed into the base of projectile, which is made either from pearlitic malleable iron or from steel. Propellant M9 [ See Vol 2, p C35, Table VI (Ref 44)] charge consists of several increments sealed in individual cellophane bags (usually four for 60-min mortars and up to nine for 81-mm weapons). The bags are placed either between or within the blades of fins. 

In a 3-I. beaker are placed no g. (1.2 moles) of aniline, 150 g. (1.76 moles) of sodium bicarbonate and 1 1. of water, and the mixture is cooled to 12-15° by the addition of a small amount of ice. The beaker is then fitted with ail efficient mechanical stirrer. The blade of a large porcelain spatula should be inserted into the liquid to overcome the rotary motion and thus obtain better mixing. The stirrer is started and 254 g. (1 mole) of powdered iodine is added in 15-20 g. portions at intervals of two to three minutes so that all the iodine is introduced during the course of one-half hour. Stirring is continued for twenty to thirty minutes. By this time the reaction is complete, and the color of the free iodine in the solution has practically disappeared. The crude -iodoaniline, which separates as a dark crystalline mass, is collected on a Biichner funnel, pressed as free from water as possible, and dried in the air. The filtrate may be saved for the recovery of iodine (Note 1). 

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