2017 New Positive Displacement Flow Meter

Model NO.: PD
Measuring Media: Liquid
Measuring Principle: Electrical Principles
Measurement Object: Closed Pipeline
Trademark: ZHONGSHU
Transport Package: 2PCS/CTN
Specification: DN25
Origin: Wenzhou, Zhejiang, China
HS Code: 9026100000
 Positive Displacement Industrial Flow Meter

Advantage:
Excellent stepless adjusting mechanism allows a micro adjustment of the meter.
High accuracy and repeatability over the widest range of flow. Superior
Accuracy at constant flow.
Low maintenance, no metal-to-metal contact in measuring chamber, long life service.
Low pressure loss, a true gravity flow meter
Accuracy regardless of pressure fluctuations, temperature variation, viscosity
Choice of aluminum, cast iron and stainless steel materials of construction

 
Model M FMC SM
Size 2" 3" 4" 6" 2" 3" 4" 2" 3" 4"
Max. flow rate 3000L/min 1500L/min 1300L/min
Min. flow rate 25L/min 35L/min 130L/min
Accuracy ±0.2% ±0.2% ±0.2%
Repeatability ±0.2% ±0.2% ±0.2%
Max. viscosity 1000CPS 1000CPS 1000CPS
Max. operating pressure 3.4MPa 1.8MPa 1.8MPa
 

 

CNC Turning

What is CNC Turning

In CNC turning, a chuck (or specialized clamp) holds bars of material and, as they are rotated, a tool is fed to the piece to remove material to create a specific shape. A turret, which holds a group of tools, is programmed to move along the work piece in three different axes of motion to shape the material according to the assigned specifications.

Since CNC turning involves removing material from a work piece, it`s considered a [subtraction machining" process. It is done on a lathe machine, which can be used on all types of material, from wood to metal to plastic. It can also be done on a mill or a drill press.

Turning is primarily used to create cylindrical parts. It can be completed on the outside or the inside of a work piece, which is known as boring. The process can also be used to conduct various other operations, including:

· Grooving: Cuts grooves or creates narrow cavities in work pieces.

· Taper turning: Creates a gradually decreasing diameter in a cylindrical shape.

· Drilling: Produces round holes, which are typically for screws and bolts.

· Facing: Cuts a flat surface perpendicular to the axes of the milling cutter.

· Parting: Separates one part of the work piece from another.

· Knurling: Creates vertical, horizontal or crossing lines on the work piece.

· Threading: Makes grooves that can be screwed into other objects.

CNC Turning process

l Creating a digital representation of the part in CAD

l Creating the machining code from the CAD files

l CNC lathe setup

l Manufacturing of the turned parts

Capabilities

Typical

Feasible

Shapes:

Thin-walled: Cylindrical
Solid: Cylindrical

Part size:

Diameter: 0.02 - 80 in

Materials:

Metals
Alloy Steel
Carbon Steel
Cast Iron
Stainless Steel
Aluminum
Copper
Magnesium
Zinc

Ceramics
Composites
Lead
Nickel
Tin
Titanium
Elastomer
Thermoplastics
Thermosets

Surface finish - Ra:

16 - 125 μin

2 - 250 μin

Tolerance:

± 0.001 in.

± 0.0002 in.

Max wall thickness:

0.02 - 2.5 in.

0.02 - 80 in.

Quantity:

1 - 1000

1 - 1000000

Advantages:

All materials compatible
Very good tolerances
Short lead times

Disadvantages:

Limited to rotational parts
Part may require several operations and machines
High equipment cost
Significant tool wear
Large amount of scrap

Applications:

Machine components, shafts, engine components

Suitable Materials for Turning

In turning, the raw form of the material is a piece of stock from which the workpieces are cut. This stock is available in a variety of shapes such as solid cylindrical bars and hollow tubes. Custom extrusions or existing parts such as castings or forgings are also sometimes used.

Turning can be performed on a variety of materials, including most metals and plastics. Common materials that are used in turning include the following:

l Aluminum

l Brass

l Magnesium

l Nickel

l Steel

l Thermoset plastics

l Titanium

l Zinc

When selecting a material, several factors must be considered, including the cost, strength, resistance to wear, and machinability. The machinability of a material is difficult to quantify, but can be following characteristics:

l Results in a good surface finish

l Promotes long tool life

l Requires low force and power to turn

l Provides easy collection of chips

CNC turning1CNC turning2

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Suzhou FCE precision electronics Co., LTD , https://www.fcesz.com