Weidmüller 8662570000模塊
環(huán)氧樹(shù)脂：這是最常用的密封材料。兩組分環(huán)氧樹(shù)脂由聚合物樹(shù)脂和硬化劑組成，當(dāng)混合在一起時(shí)引起化學(xué)反應(yīng)，使聚合物鏈中的化學(xué)鍵交聯(lián)，從而形成既堅(jiān)固又強(qiáng)韌的化合物。固化過(guò)程會(huì)放熱（產(chǎn)生熱量），因此環(huán)氧樹(shù)脂必須經(jīng)過(guò)數(shù)小時(shí)的緩慢固化以散發(fā)內(nèi)部產(chǎn)生的熱量
緩慢的固化時(shí)間可能使環(huán)氧灌封工藝成為生產(chǎn)瓶頸
聚氨酯：聚氨酯（PU）是一種熱固性塑料。如同環(huán)氧樹(shù)脂，PU通常是由基礎(chǔ)樹(shù)脂和異氰酸酯固化劑組成的兩組分化合物。與大多數(shù)環(huán)氧樹(shù)脂不同，PU固化后變得更柔軟、更有橡膠感。
Weidmüller 8662570000模塊PU灌封膠的優(yōu)點(diǎn)是：
彈性體（在固化狀態(tài)下具柔韌性和橡膠性）
高耐磨性
適用于鐵氧體等精密部件
適用于異種材料或具有較高熱膨脹率的大器件
可定制流動(dòng)性和固化性能（包括快速固化）
較低的玻璃化溫度（通常為-70°C）
缺點(diǎn)是：
可能會(huì)隨著時(shí)間流逝而受潮（除非使用聚丁二烯類(lèi)型）
最高溫度限制在130°C左右
硅樹(shù)脂：硅橡膠是一種聚硅氧烷聚合物，添加鉑催化劑后從液態(tài)轉(zhuǎn)化成固態(tài)，因此即使在室溫下也能快速固化。Recom以設(shè)計(jì)高效率、高經(jīng)濟(jì)效益且可靠的AC/DC和DC/DC灌封電源感到自豪，離線(xiàn)式和板載的皆然。根據(jù)轉(zhuǎn)換器的類(lèi)型和應(yīng)用范圍，我們使用環(huán)氧樹(shù)脂、聚氨酯或硅樹(shù)脂灌封膠，生產(chǎn)可靠的轉(zhuǎn)換器，可以耐環(huán)境、防止機(jī)械沖擊和振動(dòng)應(yīng)力，并具有良好的電絕緣性和高導(dǎo)熱性。
如所有批量生產(chǎn)過(guò)程，在固化狀態(tài)下的性能不僅取決于灌封膠的選擇，還仰賴(lài)訓(xùn)練有素的人員在溫濕度管控的環(huán)境下細(xì)心準(zhǔn)備和精確應(yīng)用。如果不遵循詳細(xì)的SOP（標(biāo)準(zhǔn)操作程序），可能產(chǎn)生氣孔或?qū)е赂街Σ?，讓產(chǎn)品提早故障。
can fully support all kinds of imaging devices and provide a fast transmission scheme for high-end machine vision systems, which is the first in China. Its low power consumption, wide temperature operation, lead-free environmental protection design, PC104 bus, comprehensive support for win98\2k\xp, Linux various system operation platforms, a compact and efficient (cost-effective) real-time system with system area network (SAN) architecture for data acquisition, monitoring, control and diagnosis based on SBC and DSP data acquisition control i/o module. Terminal control points (TCS nodes) and management control points (SCS nodes) are developed on the SBC module. Traditional LAN (10/100m Ethernet) or SCI module provides weak / strong interaction between distributed nodes. The data acquisition and control module with front-end signal conditioning electronics based on DSP is embedded into the system as the basic part of TCS node. Both TCS and SCS can operate in autonomous mode. Virtual models in TCS and SCS can be used as data files through user-friendly interfaces or for signal simulation on internal or external (DAC with high accuracy) nodes.
Compact modular real-time system
In the late 1980s, the whole computer board was limited by large-scale integrated chips, and then this chip developed into a single chip microcomputer or DSP.
