valve people to work, must often contact with all kinds of drawings, using the view, sectional view, sectional structure of the said parts; The outline of each part size and shift.

orthogonal projection method projection projection line parallel to each other, parallel projection line and plane of vertical projection method.

1, the basic view

2. To view the

3, partial view

4, oblique

5, sectional view

whole section

half section

local sectional view

ladder section

rotary cutting

6, a cut hypothetical with cutting plane is passed cut off somewhere, just draw the cut surface shape projection and section of the symbols of graphics, painting regulations, is called a cut section for short.

read Industrial Valves parts drawing general methods and steps of

1) First look at the title bar, overview of parts

look at the title bar, understand the parts name, material and proportion, etc, which generally understand the function of the parts, judging by the name the parts belong to which kind of parts. Judging from the material the parts rough machining method. Judging from the proportion the actual size of the parts, and parts have a preliminary understanding.

( 2) Analysis view, the structure shape

imagine view, analysis of parts of each view, the relationship between the configuration and the view of the content of the expression methods and expression, using the combination method of reading, analysis and line surface analysis form to read a part of each part structure, imagine the part shape, position and function of each part.

( 3) Analysis of all sizes, clarify size requirements

view and form integrated analysis, analysis of components of the length, width and height of the size of the three directions, then embarks from the baseline, the shape of structure analysis, to understand the body shape and location dimension, make clear the role of various sizes, shapes and sizes is shape and size of the parts, should be the view of reading, the size and shape of three combined analysis.

( 4) Analysis the technical requirement and comprehensive understand the full

map reading should make clear the surface roughness, dimensional tolerance and shape tolerance and other technical requirements. Understand its symbol meaning. When it is necessary to contact with the part about the analysis of the parts together.

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