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Wire Mesh

 

The connection between wire mesh is as old as the company, as it was the first business of the family. The business was started by the installation of one loom manufacturing coarse meshes, but with the gradual growth, company have made remarkable advancement in the field, further by entering into fine meshes in the materials such as plain carbon steel (annealed/galvanized), stainless steels, brass and copper. Today we are on the list of varied companies serving its general purpose of filtration, screening and at place where strengthening is required. The terminology of mesh screens used does include important criteria of the selection of material with effect of its environment, wire diameter, aperture, width and length.


When Ordering the Terminology used is as Follows:

 


1. Mesh: The no of square holes in 1 linear inch is termed as mesh.
2. Warp: The wire along the length of the fabric.
3. Weft: wires run from selvedge to selvedge across the width of the fabric.
4. Wire Diameter: The no of square holes in 1 linear inch is termed as mesh.
5. Pitch: The center to center distance between the two adjacent wires.
6. Types of material: Specify the material such as mild steel, high carbon spring steel, Stainless Steel in different grades.
7. Opening of Mesh: There are two types of openings we produce, that is, square opening and slotted opening. For regular opening no direction is required, however, when ordering slotted opening one has to specify which direction that is going to be manufactured. The open area is different in each case, the larger the wire the longer the life of the screen, which results in smaller opening and screening is slower. The smaller the wire, the shorter the life of the screen, therefore opening is larger and faster screening.

Open area is the most significant factor in obtaining the maximum output of the screen.

8. Size: The width and the length of the mesh in a roll.s

 

Type of Weaves: Wire mesh has been manufactured in different kinds of weaves.

 

1. Plain Weave: This is the most common type of weave. In this weave the diameter of warp and weft wires are same. The weft wire passes alternately over and under each warp wire and each warp wire passes alternately over each weft wire.

 

2. Twill Weave: In this type of weave, wire used are heavier then the standard wire diameter used in the mesh. The terminology of this weave is that two successive warp wires passes over two weft wires alternately and two weft wires passes over two warp wires successively in a staggered.

 

3. Plain Dutch Weave: In this type of weave, wire used are heavier then the standard wire diameter used in the mesh. The terminology of this weave is that two successive warp wires passes over two weft wires alternately and two weft wires passes over two warp wires successively in a staggered.

 

4. Reverse Plain Dutch Weave (RPD): It’s the opposite of Plain Dutch weave where the weft wire is heavier then the warp wire. Strongest filter weave because of semi rectangular opening. As this has an accurate and uniform pore size so it is exceptionally easy to clean.

 

5. Reverse Twill Dutch(RTW)/Weave (Hollander Weave): Each wire passes over two and then under two wires. As far as the thickness of wire is concerned the terminology is same that of Plain Dutch. Tighter weave and more refine filtration then plain Dutch. Flow rate is extremely torturous thus allowing excellent particle retention.

 

Metals & Alloys

Wire Materials:

Wire meshes are manufactured in Galvanized wire which includes coatings in Electroplating and Hot Dipped, Mild Steels (Low carbon) & medium Carbon, Aluminum Alloy, Brass, Copper and the special steels, which include Monel, Titanium, Inconel as per customer’s demand.
The range of stainless steels includes from SS201, 202, 302, 304, 304L, 316 and Ferritic Materials such as, 410, 430. This is highly important to apply the most suitable material according to the environment to get long lasting results.

The details of the materials are described as follows:

Stainless Steel Alloys
Type 304 — Good for a wide range of applications. Resists attack by fruit juices, acetic and nitric acids, dairy products, alkalis and many other corrosive agents. Has nominal 18% Chromium and 8% Nickel.
Type 316 — Similar to Type 304 but adds molybdenum for better corrosion resistance especially to salts and acids. Also provides increased strength at high temperatures.
Type 304L & 316L — These alloys have extra low carbon content. This is useful for welding to maintain the corrosion resistant properties of the material.
Type 430 — Unlike the 300 series this alloy is magnetic. Less resistant to corrosion than the 300 series. Contains nominal 17% Chromium. Other Stainless Steel types available upon request (Types 317, 321, 347, etc.).
Carbon Steel — Least expensive metal used for wire cloth. Has good tensile strength, impact resistance and low abrasion. Without a suitable protective coating carbon steel is susceptible to rust and acid attack.
Copper and Copper Alloys
Copper — Excellent electrical and thermal conductivity, non-magnetic and anti sparking. Most useful for its resistance to the atmosphere, sea water, alkaline solutions and organic chemicals. Has low tensile strength and poor abrasion resistance. Poor resistance to acids.

Weights Calculation of Different Materials:

The weight of the material been calculated on the basis of following,

Multiplying factor with the numeric weight of the material. Steel is taken as reference material.
. Aluminum 34.17%
. Brass (70/30) 108.73%
. Copper 113.35%
. Inconel (600) 108.92%.
. Monel 112.20%
. Plain Steel 100%
. Stainless Steel (18-8) 100.98%

 

Get Intouch

Add: 37-Nishter (Brandreth) Road,
Lahore-Pakistan.
P.C:54000
Tel: +(92) 42.37652049
Tel: +(92) 42.37652049
Mail: inquiry@afzalmachinery.com
Mail: sajjad@afzalmachinery.com
Web: www.afzalmachinery.com

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