GB/T 39164-2020 in English
VALIDTools for moulding—Thermal insulating sheets for injection moulds
- Issued on:2020-10-11
- Implemented on:2021-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$214.00
《GB/T 39164-2020成型模 注射模隔热板》由TC33（全国模具标准化技术委员会）归口，主管部门为国家标准化管理委员会。
Introduction
Analysis of the core content of the standard
GB/T 39164-2020 standard specifies the technical requirements for insulation boards for plastic and rubber injection molds, mainly including:
- New C-type insulation board structure (common type in China)
- Three installation methods are clarified to correspond to different working temperature ranges
- The material specification is modified to phenolic resin bakelite
Structural type comparison
| Type | Characteristic size (mm) | Applicable scenarios | Tolerance requirements |
|---|---|---|---|
| Type A | w×l×t=96×96×6 | Standard template matching | Thickness -0.2~-0.4 |
| Type B | With φ90 positioning hole (w×l≥156×156) | Need to install with positioning ring | Length and width -2.0~-2.5 |
| Type C | t=6~15(custom hole position) | Non-standard mold | According to manufacturing requirements |
Key technical indicators
Compressive strength: ≥170N/mm² at 140℃, ≥100N/mm² at 200℃
Thermal conductivity: λ≤0.3W/(m·K)
Typical application case: After a certain automobile injection mold adopted C-type insulation board, the template temperature fluctuation was reduced by 40%
Main differences from ISO15600
- Added normative reference document GB/T4169.8
- Structural type chapters were reorganized into 3.1~3.3
- Supplemented domestic common material specifications
- Added working temperature classification installation guide
Implementation suggestions
Selection guide
- 70~90℃ working condition: only install on the movable/fixed mold base plate
- ＞90℃ working condition: need to increase the outer side insulation of the template
- Non-standard molds give priority to C type custom size
Installation specifications
Fix with M5 hexagon socket countersunk screws, leave 1~3mm of air on one side (see Figure 6)
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