JC 340-1992 in English
VALIDSegmented diamond garden saw blades for processing non-metallic hard and brittle materials
- Issued on:1992-06-26
- Implemented on:1993-02-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$339.00
| Standard No: | JC 340-1992 |
| Document status: | VALID |
| Title in English: | Segmented diamond garden saw blades for processing non-metallic hard and brittle materials |
| Title in Chinese: | 加工非金属硬脆材料用节块式金刚石园锯片 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 1992-06-26 |
| Implemented on: | 1993-02-01 |
| Professional Classification: | JC-Building Material |
| Related Keywords: | diamond garden saw blades
circular saw blades brittle materials introduction standard background hard materials brittle materials |
Introduction
Standard Background and Evolution
As an alternative version of JC 340-83, JC 340-92 reflects the standardization of manufacturing technology for diamond circular saw blades in China's building materials industry in the early 1990s. This standard is aimed at the processing of non-metallic hard and brittle materials (such as stone, concrete, and ceramics) and improves the industry's quality level by unifying product parameters and testing methods.
Core parameter analysis
| Key indicators | Wide groove type (1A IRSS/C1) | Through groove type (1A IRSS/C2) |
|---|---|---|
| Applicable diameter range (mm) | 400-2200 | 200-700 |
| Base thickness tolerance (mm) | ±0.3~±2.0 | ±0.3~±0.5 |
| Typical groove depth (mm) | 3.2-12.0 | 1.6-5.0 |
Key technical requirements
Material manufacturing specifications
- Hardness control: HRC 38-45, hardness difference of the same piece ≤4HRC
- Flatness: Relaxed from 0.08mm to 0.50mm as the diameter increases
- Radial runout: The highest accuracy requirement is 0.03mm (diameter 200-250mm)
Segment welding standard
Acctual cases show that when the symmetry of the diamond segment exceeds 0.15mm, it is easy to produce deflection during the cutting process, resulting in an increase of 10-15% in the incision width. The welding symmetry limit specified in the standard can effectively ensure the cutting accuracy.
Key points of detection method
The standard innovatively stipulates special inspection tooling (as shown in Figure 5), requiring:
- Flange end face circular runout ≤0.01-0.05mm
- Core shaft radial runout ≤0.01-0.05mm
- During detection, the dial indicator contact is positioned 10-20mm from the bottom of the groove
Implementation suggestions
Selection guide
Select diamond concentration according to material hardness:
- Hard materials such as granite: recommended concentration 75-100%
- Medium-hard materials such as marble: recommended concentration 50-75%
Maintenance specifications
Article 8.4 of the standard specifically emphasizes that circular saw blades should be stored upright and kept ventilated and dry when hung. Practice shows that flat storage may cause the base to deform at a rate of 0.1 mm/year.
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