Lapping Inspection Cast Iron Bed Plate Surface T-Slot Table
The raw material of the cast iron T-slot is the high -strength cast
iron HT200-300 ,whose surface hardness is of HB170-240.After the
two manual handing such as 600℃ to 700℃ artificial annealing as
well as 2 to 3 years of natural aging, the T-slot has plate
perfectly resists abrasion and has stable precision.
Precision accuracy:T-slot plates shall be classified as Grade 0,
Grade 1, Grade 2, and Grade 3.
Technical requirements of T-slot Plate:
1. The working surface, when inspected visually, shall be free from
blowholes, sand holes, cracks, slag inclusions scratches, porous
patches and other visual flaws.
2. The working surface shall be clean and uniform and the other
sides shall be painted well.
3, the plugging of blowholes or porous patches in the working
surface whose accuracy is Grade 0- Grade 3 with material of a
similar composition is permitted provided that such a repair does
not affect stability or accuracy.
4, The raw material of Cast Iron Surface Plate shall be the
close-grained cast iron whose hardness is of HB 170~220.
5, the surface plate are usually adopted the scraping technology.
6, the surface plate after scraping technology need coloring method
for inspection.
Precision: According to the national standards measurement examination
regulations execution,
respectively is ,2,3, fine polish.
| Specification (mm) | Flatness tolerance (um) |
| | Grade2 | Grade 3 | Finihs plane |
| 400x400 | | 24 | | |
| 600x400 | | 28 | | |
| 800x500 | | 32 | 80 | |
| 900x600 | | 32 | 80 | |
| 1000x750 | | 36 | 90 | |
| 1000x1000 | | 39 | 96 | |
| 1500x1000 | | 48 | 120 | |
| 2000x1000 | | 52 | 129 | |
| 2000x1500 | | 56 | 140 | |
| 2000x2000 | | 60 | 152 | 230 |
| 2500x1500 | | 68 | 168 | 248 |
| 3000x1000 | | | 174 | 248 |
| 3000x2000 | | | 184 | 275 |
| 3000x3000 | | | 210 | 300 |
| 4000x1000 | | | 210 | 300 |
| 4000x2000 | | | 219 | 310 |
| 4000x3000 | | | 240 | 360 |
| 5000x2000 | | | 255 | 375 |
| 5000x3000 | | | 287 | 420 |
| 6000x2000 | | | 293 | 430 |
| 6000x3000 | | | 308 | 460 |
| 8000x2000 | | | 370 | 520 |
| 8000x3000 | | | 382 | 570 |
Notice for use
1: To the best uniform use of the flat plate throughout, to avoid
local grinding concave.
2: Keep the plate clean, prevent be wroned by iron scrap, sand ...
3: Put down workpieces on the plate gently, prevent the flat
surface be impacted, once the plate surface hit the workpiece or
other objects,repair impact and the convex part immediately.
4: Do not do any hammer work on the surface plate .
5: After use, should be clean it. If long time no use should not be
coated with anti rust oil to prevent corrosion.
