上海劃線平臺(tái)，北京劃線平臺(tái)，河北北重機(jī)械廠家直銷(xiāo)。
Making Out Surface Plate can
be made into the rib type or box type, and its working surface could be
rectangle, square or round. Additionally, the working surface are allowed to
have V or U-shaped grooves, round holes, slot holes. Etc. A surface plate is a
solid, flat plate used as the main horizontal reference plane for precision
inspection, marking out (layout), and tooling setup. The surface plate is often
used as the baseline for all measurements to the workpiece.
劃線平臺(tái)的生產(chǎn)工藝流程基本是：
Technological process of
production of Making Out Surface Plate:
1. Rough casting:
Make drawings according to
the technical requirements-Making mold as per the drawings-Prepare
material-Modelling-Filling sand-drying-casting-Surface cleaning -Casting parts
testing.
2. Heat treating and aging
treatment, to reduce the internal stress of castings and to prevent it from deform
after machining.
3. Rough machining:
Visual
Inspection-Marking-Machining -Final inspection and test.
4. Precision finishing:
Leveling -Scraping-
Inspection and testing.
5. Final finish:
Painting,-packing -deliver to
warehouse.
The accuracy of the Cast Iron
Surface Plate refers to the deviation from flatness of the working surface and
it shall be classified as Grade 0,1,2,3.