PEEK-Solvay KetaSpire KT-820
過酷な深井戸ダウンホール環境や臨床滅菌環境での動的荷重疲労と化学的不溶解性に耐えるには、超剛性で高粘度のポリマーが必要です。SyensqoのKetaSpire KT-820は、非強化・低流動性のポリエーテルエーテルケトンマトリックスを通じてこれを実現します。密度1.30 g/cm³、メルトフローレート3.0 g/10分を誇るこの高結晶性グレードは、高流動性PEEKグレードと比較して、優れたクリープ抵抗性と最高クラスの疲労寿命を提供します。ISO 13485およびIATF 16949認証フレームワークの下で運営されるJucheng Precisionは、KetaSpire KT-820の高温成形を専門としています。高温セラミックヒーターバンドとオイル加熱金型温調機により、完全な半結晶相配向を保証し、Zeiss CMMで検証された構造部品を提供します。.
KetaSpire KT-820 Low-Flow Structural & High-Purity Profile
KetaSpire® KT-820 is an unreinforced, low-flow semi-crystalline Polyetheretherketone resin, lightly dusted with calcium stearate to aid pellet plastication, engineered to deliver best-in-class fatigue resistance:
| 物理与强度参数 | KetaSpire KT-820 Spec Metric | Dynamic Molding Advantage |
|---|---|---|
| Fatigue & Creep Life | Best-in-class fatigue cycle resistance | Low-flow long polymer chain entanglement delivers superior resistance to high-frequency load stress and micro-creeping over years of operation. |
| Melt Viscosity Profile | Low Flow 3.0 g/10 min MFR (400°C x 2.16kg) | Provides extremely high melt strength and viscosity uniformity, preventing parting line flashing under high-pressure dynamic packs. |
| 滅菌適応性 | Autoclave, EtO, and Gamma Resistant | Exhibits exceptional resistance to mechanical and chemical property shifts even after hundreds of steam sterilization cycles. |
Process & Dynamic Load Configurations for Low-Flow KT-820
With high molecular weight and robust melt strength, KetaSpire KT-820 processes predictably inside high-pressure tools:
| 成形プロセス分類 | プロセス互換性と運用詳細 |
|---|---|
| Heavy-Duty Subsea Connector Seals | Excellent. The primary process for KT-820. Perfectly optimized for high-pressure downhole packer seals, dynamic oil-gas seal rings, and subsea connectors. |
| Autoclavable Medical Components | Excellent. Run inside our ISO Class 7/8 cleanrooms to mold highly complex orthopedic targeting caps, surgical dental trial screws, and clinical tubing adapters. |
| High-Wear Dynamic Bushings | Excellent. Highly suitable for structural sliding bearing blocks, dynamic silent gears, wear rings, and heavy-load valve seats in chemical processing. |
PEEK-Solvay KetaSpire KT-820 High-Temperature Tooling Matrix
Molding an unreinforced, high-viscosity semi-crystalline polymer like KetaSpire KT-820 requires high injection pressure profiles and exact thermal controls to prevent voids:
High-Temperature Pressurized Oil Mold Heating
To secure the proper semi-crystalline phase (giving PEEK its signature opaque beige color, chemical inertness, and strength), mold temperatures must be maintained continuously at 175°C–205°C (347°F to 401°F) using pressurized oil-heating controllers. Cold molds cause the melt to freeze amorphous, turning parts translucent brown and mechanically weak.
High-Viscosity Gate and Runner Sizing
With a low melt flow rate of 3.0, KT-820 is highly viscous. Gates must be sized generously (minimum 70% of part wall thickness) and sprues polished to avoid dynamic pressure drops and high shear stress, which can cause surface splay and gate blush near complex ribs.
S136 Mirror-Polished Tooling (Corrosion Protection)
Due to the extreme clamping pressures and melt velocities of PEEK KT-820, Jucheng’s tooling division uses hardened, corrosion-resistant S136 stainless steel molds. We heat-treat cavities to 52 HRC and design generous draft angles (minimum 1.5° to 2.0°) to ensure clean part release.
Extended Desiccant Pre-Drying
While PEEK absorbs minimal water, moisture causes hydrolytic splay and weld line degradation. We desiccant-dry KetaSpire KT-820 resin at 150°C (302°F) for 4 hours, keeping internal moisture below 0.02% to secure optimal molecular bonds.
Key Application Fields for PEEK-Solvay KetaSpire KT-820
- 石油・ガス探査・生産： Downhole packer elements, subsea electrical connectors, dynamic chemical valve seats, compressor seals, and pump vanes.
- 医療・歯科機器（ISO 13485認証）： Spinal fusion cages, temporary dental healing caps, surgical trial instruments, orthopedic targeting blocks, and diagnostic manifolds.
- Automotive & Chemical Processing (IATF 16949): High-wear thrust washers, transmission seal rings, chemical spray nozzles, gas flow meters, and hot-water pump gears.
プロパティ
| 密度 | 1.3 g/cm³ |
| Melt Mass-Flow Rate (MFR) (400°C/2.16kg) | 3 g/10 min |
| 引張弾性率 | 3,700 - 3,900 MPa |
| 降伏点引張応力 | 95 MPa |
| 引張破断伸び（DAM） | 40 % |
| 曲げ弾性率 | 3,900 MPa |
| 曲げ強度 | 155 - 160 MPa |
| シャルピー衝撃強さ（ノッチ付き）（23°C） | 5.5 kJ/m² |
| 融点（DSC） | 343 °C |
| ガラス転移温度（開始） | 143 °C |
| 熱変形温度（HDT @ 1.80 MPa） | 152 °C |
| 線形成形収縮率 | 1.00 - 1.40 % |
| 最大部品サイズ | 800 x 600 mm |
| 最小部品サイズ | 1 x 1 mm |