PPS-セラニーズ フォートロン 1140L4
鉛フリーリフローはんだ付け温度260°Cに寸法変動なく耐えなければならない高密度マイクロエレクトロニクスおよびSMT部品には、セラニーズのフォートロン1140L4が画期的なソリューションを提供します。この40%ガラス繊維強化リニアPPSグレードは、高流動性ポリマーに共通するバリ欠陥を最小限に抑えるよう独自に設計されており、非常に低い溶融粘度と高い構造ウェルド強度を備えています。ISO 9001およびIATF 16949認証施設であるJucheng Precisionでは、フォートロン1140L4の高精度成形を専門としています。35台以上の先進的な射出プレス機と5軸CNC機械加工されたS136ステンレス鋼金型により、その異方性収縮（0.15%〜0.5%）を制御し、揮発性ガスの発生を管理して、Zeiss CMMで検証されたゼロ欠陥部品を提供します。.
Fortron 1140L4 Low-Flash Performance & Structural Profile
Fortron® 1140L4 is a 40% glass fiber reinforced, linear polyphenylene sulfide (PPS) grade engineered by Celanese, specifically designed to minimize flash defects during high-volume precision runs:
| Material Property | Measured Value (ISO/ASTM) | Engineering Impact |
|---|---|---|
| Low-Flash Chemistry | Patented Linear Matrix Control | Specially formulated to drastically suppress typical PPS flashing on mold parting lines, reducing secondary deflashing processes. |
| 極限の剛性 | Tensile Modulus 14,500 MPa | Provides exceptional high-stiffness, unyielding structural support for heavy-duty EV battery connectors and microelectronic frames. |
| Thermal Stability | HDT @ 1.80 MPa: 270 °C | Withstands uncompromised mechanical load and shape retention under continuous high heat, ideal for Lead-free Reflow (SMT) processes. |
Thin-Walled Component Process Suitability for Fortron 1140L4
With outstanding melt fluidity and linear macromolecular weight, Fortron 1140L4 processes beautifully inside complex dynamic components:
| 部品カテゴリ | 成形プロセスの重点 |
|---|---|
| Thin-Wall Electronic Sockets | Excellent. The primary process for Fortron 1140L4. Optimized for high-density, thin-walled micro-connectors, chip carriers, and relays. |
| High-Load Automotive Sensors | Excellent. Highly compatible with metal terminals, allowing encapsulation of multiple sensor pins directly within highly rigid PPS housings. |
| Chemical Water-Pump Impellers | Good. Outstanding dimensional stability, low water absorption, and excellent hot water resistance prevent structural distortion. |
Molding Analysis: Fortron 1140L4 Dynamic Heat Control and Venting Blueprint
Molding a low-flash linear 40% glass-fiber reinforced PPS like Fortron 1140L4 requires precise melt temperature controls and optimized venting to prevent outgassing:
Precision Parting Line Control (Tooling Tolerance)
Even though Fortron 1140L4 is custom-formulated to reduce flashing compared to typical PPS grades, its highly fluid nature still requires highly precise tool shut-offs. Jucheng’s tooling division uses 5-axis CNC machines to achieve micro-tolerances, keeping mold parting clearances strictly within 0.005mm on premium S136 stainless steel mold cavity blocks hardened to 48–52 HRC.
Oil-Heated Mold Temperature Matrix
Pressurized oil heaters are mandatory to keep mold temperatures at 135°C–150°C (275°F to 302°F). Low mold temperatures prevent the optimal semi-crystalline phase from forming, which severely degrades mechanical strength, chemical resistance, and dimensional stability over time.
Deep Outgassing Venting Slots
To prevent gas-induced diesel burn marks and short shots, we machine deep, strategically positioned venting channels (0.015mm depth) on the mold parting lines. This secures clean, blemish-free parts on multi-cavity runs.
Hygroscopic Pre-Drying Protocol
We dry raw resin in desiccant hopper dryers at 120°C–140°C (248°F–284°F) for 3–4 hours. This eliminates surface splay and prevents weld-line micro-voids, keeping internal moisture strictly below 0.02% to secure optimal molecular bonds.
Key Application Fields for PPS-Celanese Fortron 1140L4
- Electrical, Office & Printers: High-density micro-connectors, SMT-compatible chip bobbins, micro-switches, relay sockets, copier fuser units, and printer gears.
- Automotive Powertrains & Fluids (IATF 16949): High-pressure water pump impellers, thermostat housings, heater valves, cooling fluid pipes, throttle bodies, and fuel injection systems.
- Fluid Handling, Plumbing & Industrial: Boiler water mixing valves, chemical spray nozzles, household faucet combination valves, and high-pressure hot-water couplers.
プロパティ
| 密度 | 1.65 g/cm³ |
| 引張弾性率（DAM） | 14,500 MPa |
| 破断時の引張応力（DAM） | 195 MPa |
| 引張破断伸び（DAM） | 1.6 % |
| 曲げ強度 | 285 MPa |
| 曲げ弾性率 | 14,000 MPa |
| シャルピー衝撃強さ（ノッチ付き）（23°C） | 9 kJ/m² |
| 融点 | 280 °C |
| 熱変形温度（HDT @ 1.80 MPa） | 270 °C |
| 線形成形収縮率（流動方向） | 0.15 - 0.25 °C |
| 線形金型収縮率（横方向） | 0.35 - 0.50 % |
| 体積抵抗率 | 1.0E+16 % |
| 最大部品サイズ | 800 x 600 mm |
| 最小部品サイズ | 1 x 1 mm |