Table of Contents
What are draw plates used for?
A draw plate is a type of die made of steel or wood that has holes in it: 12, 20, even 30 or more. The holes are used to draw or pull precious metals through, thinning and smoothing the wires.
What are plates in drawing?
With a mandrel, a draw plate can be used to draw tubes of metal. Plates are available in many different sizes and shapes for drawing different shapes of wire, including round, square, oval, half-round and hexagonal. The plate has rows of holes drilled through it which are slightly wider at the back.
How does wire drawing work?
The wire-drawing process consists of pointing the rod, threading the pointed end through a die, and attaching the end to a drawing block. The block, made to revolve by an electric motor, pulls the lubricated rod through the die, reducing it in diameter and increasing its length.
Why is wire drawing used?
Wire drawing is a metalworking process used to reduce the cross-section of a wire by pulling the wire through a single, or series of, drawing die(s). Although similar in process, drawing is different from extrusion, because in drawing the wire is pulled, rather than pushed, through the die.
What are the advantages of wire drawing?
The advantages of wire and rod drawing of other applications are:
- Good surface finishing.
- Adaptability to mass production.
- Close dimensional control.
- Improved dimensional properties.
- Economical benefits.
What can you draw with a draw plate?
Draw plate. With a mandrel, a draw plate can be used to draw tubes of metal. Plates are available in many different sizes and shapes for drawing different shapes of wire, including round, square, oval, half-round and hexagonal. The plate has rows of holes drilled through it which are slightly wider at the back.
What kind of plate do you use to draw wire?
Plates are available in many different sizes and shapes for drawing different shapes of wire, including round, square, oval, half-round and hexagonal. The plate has rows of holes drilled through it which are slightly wider at the back. When drawing, the plate is held securely in a vise or other fixture.
How many holes are in a draw plate?
Draw plate. A draw plate is type of die consisting of a hardened steel plate with one or more holes through which wire is drawn to make it thinner. A typical plate will have twenty to thirty holes so a wide range of diameters can be drawn. With a mandrel, a draw plate can be used to draw tubes of metal.
What kind of orifice plates are used for flow measurement?
Paddle Type Orifice Plates. Paddle Orifice Plates are used with raised-face orifice flanges for measurement applications and installed between standard ASME flanges for restriction applications. The plate and handle are a one-piece seamless design on 1/8-in. thick orifice plates for line sizes 2-inch though 6 inch and ASME classes less than 900.