“十五五”規(guī)劃將制造上游關(guān)鍵材料的國(guó)產(chǎn)替代提到了戰(zhàn)略高度，算力、儲(chǔ)能、光通信三大領(lǐng)域背后，一批此前較少被公眾關(guān)注的材料正在進(jìn)入產(chǎn)能擴(kuò)張周期。對(duì)裝備制造企業(yè)而言，這既是機(jī)會(huì)，也是考驗(yàn)——這些材料的生產(chǎn)工藝往往對(duì)設(shè)備提出了與制藥行業(yè)類似、甚至更嚴(yán)苛的要求。
The 15th Five-Year Plan has elevated the domestic substitution of upstream key materials for high-end manufacturing to a strategic level. Behind the three major fields of computing power, energy storage, and optical communications, a group of materials that had previously received limited public attention are now entering a capacity expansion cycle. For equipment manufacturers, this presents both opportunities and challenges—the production processes for these materials often impose requirements on equipment similar to, or even more stringent than, those in the pharmaceutical industry.
無(wú)錫張華在過(guò)濾、洗滌、干燥一體化設(shè)備領(lǐng)域已有多年積累，其過(guò)濾洗滌干燥三合一系統(tǒng)在同一臺(tái)設(shè)備內(nèi)完成過(guò)濾、洗滌、干燥和固體卸料全過(guò)程，可替代抽濾機(jī)、壓濾機(jī)、雙錐干燥器等分散設(shè)備。這種工藝路徑與上述幾種關(guān)鍵材料的后處理環(huán)節(jié)存在天然的匹配空間。以下從材料生產(chǎn)的實(shí)際約束出發(fā)，逐一分析。
Wuxi Zhanghua has accumulated years of experience in integrated Filtration-Washing-Drying Equipment (Agitated Nutsche Filter Dryer). Its ANFD system completes the entire process of filtration, washing, drying, and solid discharge within a single vessel, and can replace separate equipment such as vacuum filters, filter presses, and double-cone dryers. This process route has a natural fit with the post-treatment stages of several key materials mentioned above. The following analysis starts from the actual constraints of material production and examines them one by one.
電容碳：洗滌與除雜環(huán)節(jié)的設(shè)備適配
Capacitor Carbon: Equipment Adaptability in Washing and Impurity Removal
超級(jí)電容活性炭的性能高度依賴灰分和金屬離子含量。石油焦基、樹脂基活性炭的灰分需要降至0.1%以下，生產(chǎn)過(guò)程中通常需要用稀鹽酸酸洗、去離子水反復(fù)洗滌至中性，再在150℃左右干燥。這一酸洗—過(guò)濾—洗滌—干燥的流程，與三合一設(shè)備的核心功能重合。
The performance of activated carbon for supercapacitors depends heavily on ash content and metal ion levels. For petroleum coke-based and resin-based activated carbon, ash content must be reduced to below 0.1%. The production process typically requires pickling with dilute hydrochloric acid, repeated washing with deionized water until neutral, and then drying at around 150°C. This sequence of pickling—filtration—washing—drying overlaps completely with the core functions of Filtration-Washing-Drying Equipment (Agitated Nutsche Filter Dryer).
張華三合一設(shè)備采用全密閉系統(tǒng)設(shè)計(jì)，可在同一容器內(nèi)完成多次“過(guò)濾-清洗-再過(guò)濾-再清洗”循環(huán)，最終干燥和自動(dòng)出料，避免了物料在工序間轉(zhuǎn)移時(shí)接觸外界環(huán)境。武漢科技大學(xué)在采購(gòu)超級(jí)電容炭酸洗設(shè)備時(shí)，明確要求“過(guò)濾前容積≥100L/批、真空/加壓過(guò)濾、真空密閉干燥”，這與張華設(shè)備的技術(shù)參數(shù)區(qū)間是匹配的。
Zhanghua's ANFD adopts a fully enclosed system design, enabling multiple cycles of "filtration—cleaning—refiltration—recleaning" within the same vessel, followed by final drying and automatic discharge. This avoids exposure of the material to the external environment during inter-process transfer. When Wuhan University of Science and Technology procured acid-washing equipment for supercapacitor carbon, it explicitly required "pre-filtration volume ≥100 L/batch, vacuum/pressure filtration, and vacuum enclosed drying." This is consistent with the technical parameter range of Zhanghua's equipment.
一個(gè)值得注意的細(xì)節(jié)：電容碳生產(chǎn)中對(duì)鐵雜質(zhì)的控制極為敏感，而張華設(shè)備的接觸材質(zhì)可選用AISI 316L不銹鋼或碳化硅，濾布死角邊距控制在25mm單邊，底板平整度±1mm/m，這些參數(shù)直接影響洗滌液是否能在濾餅中均勻分布、雜質(zhì)是否會(huì)被殘留死角“鎖住”。
One detail worth noting: capacitor carbon production is extremely sensitive to iron impurity control. Zhanghua's equipment can use AISI 316L stainless steel or silicon carbide as contact materials, with a filter cloth dead-corner margin controlled at 25 mm per side and a base plate flatness of ±1 mm/m. These parameters directly affect whether the washing liquid can be evenly distributed in the filter cake and whether impurities may be "locked" in residual dead corners.
高頻絕緣粉：表面改性與溶劑處理的過(guò)濾需求
High-Frequency Insulating Powder: Filtration Requirements in Surface Modification and Solvent Treatment
AI服務(wù)器高速PCB對(duì)信號(hào)損耗的要求，將球形二氧化硅推向了從“隱形填料”到“關(guān)鍵功能材料”的位置。液相法制備的球形硅微粉在顆粒分布均勻性和介電損耗上優(yōu)于高溫氧化法，適用于M8、M9及以上高階高速基板。
The signal loss requirements of high-speed PCBs for AI servers have pushed spherical silica from an "invisible filler" to a "key functional material." Spherical silica powder prepared by liquid-phase methods offers advantages over high-temperature oxidation methods in particle size distribution uniformity and dielectric loss, making it suitable for M8, M9, and higher-grade high-speed substrates.
這類粉體在出廠前通常需要經(jīng)過(guò)酸洗除雜和表面改性。以硅烷偶聯(lián)劑改性為例，粉體在改性前后需要用蒸餾水或有機(jī)溶劑多次洗滌，再經(jīng)過(guò)過(guò)濾和干燥。中國(guó)粉體網(wǎng)的技術(shù)綜述也指出，包覆改性之前需要對(duì)硅微粉進(jìn)行清洗和干燥處理，冷法改性過(guò)程中會(huì)使用大量有機(jī)溶劑。
Such powders usually require acid washing for impurity removal and surface modification before delivery. Taking silane coupling agent modification as an example, the powder needs to be washed multiple times with distilled water or organic solvents before and after modification, followed by filtration and drying. A technical review by China Powder Network also notes that silica powder requires cleaning and drying before coating modification, and that the cold modification process uses a large amount of organic solvents.
這里涉及兩個(gè)設(shè)備設(shè)計(jì)要點(diǎn)：一是溶劑洗滌對(duì)設(shè)備密封性的要求，二是干燥階段對(duì)粉體團(tuán)聚和粒徑分布的保護(hù)。張華的筒錐式三合一設(shè)備采用中央驅(qū)動(dòng)槳式設(shè)計(jì)，強(qiáng)調(diào)“溫和攪拌”以減少對(duì)物料形態(tài)的破壞，干燥過(guò)程在真空條件下進(jìn)行，適合熱敏性粉體。設(shè)備可選配冷凝器和溶劑回收容器，這對(duì)于使用甲醇、乙醇等有機(jī)溶劑的表面改性工藝是有實(shí)際意義的配置。
Two equipment design points are involved here: first, the sealing requirements for solvent washing; second, the protection of powder against agglomeration and particle size distribution changes during drying. Zhanghua's conical ANFD uses a centrally driven paddle design and emphasizes "gentle mixing" to reduce damage to material morphology. Drying is carried out under vacuum, making it suitable for heat-sensitive powders. The equipment can be optionally equipped with a condenser and solvent recovery vessel, a practically meaningful configuration for surface modification processes using organic solvents such as methanol and ethanol.
高純氯化鍺：腐蝕性介質(zhì)下的材料選擇
High-Purity Germanium Chloride: Material Selection under Corrosive Media
光纖預(yù)制棒用高純氯化鍺的生產(chǎn)涉及氯化蒸餾、精餾和水解過(guò)濾等工序，介質(zhì)腐蝕性強(qiáng)，對(duì)設(shè)備材質(zhì)的要求遠(yuǎn)高于常規(guī)粉體處理。張華三合一設(shè)備的接觸材質(zhì)可在304L不銹鋼、316L不銹鋼和碳化硅之間選擇，其中碳化硅對(duì)強(qiáng)酸和含鹵素介質(zhì)有較好的耐受性。如果項(xiàng)目涉及鍺的氯化物體系，材質(zhì)方案需要針對(duì)具體介質(zhì)濃度和溫度做腐蝕評(píng)估，不能簡(jiǎn)單套用不銹鋼方案。
The production of high-purity germanium chloride for optical fiber preforms involves chlorination distillation, rectification, and hydrolysis filtration. The media are highly corrosive, and the requirements for equipment materials are far higher than those for conventional powder processing. The contact materials of Zhanghua's ANFD can be selected among 304L stainless steel, 316L stainless steel, and silicon carbide, among which silicon carbide offers better resistance to strong acids and halogen-containing media. If a project involves a germanium chloride system, the material solution needs to be evaluated for corrosion resistance based on specific medium concentration and temperature, and a stainless steel solution cannot simply be applied.
鍺本身屬于戰(zhàn)略資源，行業(yè)集中度高，設(shè)備驗(yàn)證周期較長(zhǎng)。對(duì)于這一方向，更務(wù)實(shí)的做法是先從實(shí)驗(yàn)室或中試規(guī)模的非標(biāo)設(shè)備切入，積累工藝數(shù)據(jù)后再考慮放大。
Germanium itself is a strategic resource with high industry concentration and a relatively long equipment validation cycle. For this direction, a more pragmatic approach is to start with laboratory- or pilot-scale custom equipment, accumulate process data, and then consider scale-up.
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更新時(shí)間：2026-10-26 
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