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Elbow pipe common sense
Time: 2017-11-13
The basic definition of the pipe We usually contact is the pipe, but the true definition of the pipe certainly not everyone knows.
The so-called pipe, pipe is connected to the pipe into the parts.
According to the connection method can be divided into socket-type pipe fittings, threaded pipe fittings, flange fittings and welded pipe fittings four categories.
Multi-use and pipe the same material.
Elbow (elbows), flanges, tees, four-way pipe (crosshead) and different diameter pipe (size head) and so on.
Elbows are used for pipe bending around; flanges are used to connect the pipe to the pipe parts connected to the pipe end, the tee pipe is used for the place where the three pipes are collected; the tee pipe is used for the place where the four pipes converge; Reducer for different diameters of the two pipes connected to the place.
We all are familiar with the pipe fittings, often in daily life can be exposed to the use of a very large range of pipe fittings, but in our country to reflect the worse, in Japan, whether it is sample or data introduction, a large number of pipe fittings, each Various
If you want to give the next definition of pipe fittings, I think that all pipe products after deep processing should belong to the scope of pipe fittings.
Japan really does.
Then since the pipe is a raw material pipe through deep processing into a product, so this product has the dual characteristics of pipes and mechanical parts, is the combination of the two.
Pipe is the pipe must be the raw material, but the pipe processing methods, as long as the method of machining, it can be applied.
Why the rapid development of pipe fittings in foreign countries, I think there are two more prominent advantages: The first is to replace some machined products, and more than machined parts, castings, forged structural parts light weight, saving materials; the second is more than machining Product saving process, working hours, reduce the cost of the workpiece.
Japanese material sector data describes a truck connecting rod machining method and the pipe method to do a comparison, the same weight of the material used for the weight of the material is different, machining method is 10.35KG, and the pipe is used to do this part is used 9.32KG, saving materials; machined parts priced at 240 yen, if the tube is priced at 140 yen.
Therefore, pipe method is very competitive in price, nearly 50% lower.
From the performance point of view, the pipe method is better than the machining method.
There are many types of pipe fittings, summarized the following main types: 1.
Variable diameter pipe, refers to the tube or pipe on a part of the reduced diameter; 2.
Change the wall thickness of the pipe, refers to the length along the pipe wall thickness changes; 3.
Change the section of the pipe, according to requirements, the circular cross section into a square, oval, polygon, etc .;
Bending pipe fittings, we have more contact with, that is, straight pipe into a different radius of curvature of the elbow, such as elbows, elbows, etc .;
Tube with flange and rim, the former refers to the tube end to the inside or outside convex, which refers to the circumferential direction of the tube to form a raised or grooved tube;
With curling and back cover of the tube, increase the total strength of the tube to the outside or inside of the tube curling or sealing the end of the pipe fittings;
Expanding pipe fittings, in accordance with the requirements of the pipe end or a part of the expansion to form a variety of shapes of pipe fittings; pipe processing methods there are many.
Many also belong to the category of machining, the most used is the stamping method, forging method, roller processing method, rolling method, bulging method, stretching method, bending method, and the combination of processing methods.
Pipe fittings machining and metal processing is the organic combination of pressure.
Now illustrate the following: Forging method: the end of the pipe or part of the punch forging to be punched, so that the outer diameter to reduce the commonly used swaging machine rotary, connecting rod, roller type.
Stamping method: Use a tapered core on a punch press to expand the tube end to the required size and shape.
Roller method: placed in the tube core, the outer wheel with a push, for round edge processing.
Pipe processing methods Pipe processing methods are many.
Many also belong to the category of machining, the most used is the stamping method, forging method, roller processing method, rolling method, bulging method, stretching method, bending method, and the combination of processing methods.
Pipe fittings machining and metal processing is the organic combination of pressure.
Bulging method: one is placed in the tube of rubber, the top with the punch compression, the tube protruding shape; the other method is hydraulic bulge forming, the middle of the tube filled with liquid, by liquid pressure drum into the desired shape This method is used most of the production of bellows like our common.
Forging method: With a forging machine to be part of the end of the pipe to be punched, so that the outer diameter to reduce the commonly used forging machine rotary, connecting rod, roller type.
Roller method: placed in the tube core, the outer wheel with a push, for round edge processing.
Rolling method: General mandrel, suitable for thick-walled tube inside the round.
Bending forming method: There are three methods are more commonly used, one method called extension method, the other method is called stamping method, the third is familiar roller method, there are 3-4 rollers, two fixed rollers, an adjustment Roller, adjust the fixed roller distance, finished pipe is curved.
This method is widely used, if the spiral tube production, the curvature can be increased.
Stamping method: Use a tapered core on a punch press to expand the tube end to the required size and shape.
Pipe fittings classification 1, connector rigid connector flexible connector flexible connector inner connector outer connector inner connector outer connector monofilament connector double connector threaded connector plane travel Yanyin silk travel Ren Yin Si travel internal and external teeth travel instrumentation joints Valve Fittings Pressure Gauge Fitting Gas Meter Fittings Tube Fittings Ferrule Fittings Flare Fittings Weld Fittings Socket Fittings Quick Fittings Pneumatic Fasteners Hydraulic Quick Fittings Reducing Fittings Reducing Straight Pipeline Shock Absorbers Edge Seals Reducing Side Fittings Straight Head Flanging Fittings Pipe Fittings Union Fittings Half Pipe Fittings Rotary Fittings Purge Fittings Pipe Fill Compensators Hough Fittings Open Face Fittings Smooth Fittings Joint Fittings Burglar Fittings Flexible Rubber Fittings Heat Exchanger Fittings Power Fittings Saddle Fittings Cards Ferrule hose connector Green connector external connector sanitary connector 2, Elbow groove type elbow snap sleeve elbow butt elbow socket elbow bendable rubber elbow tooth elbow tooth elbow internal and external tooth bends Headband edge elbow with seat elbows elbows seamless elbow flange elbow double elbow hygienic elbow 45
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