封孔

铝型材常温封孔技术及维护管理

The Technology And Maintenance of Aluminum profiles Normal Temperature Hole Sealing

阐述了超音速电弧喷涂技术的原理和特点，介绍了涂层设计中的涂料、封孔剂的选取和涂层技术指标的确定，以及喷涂施工工艺、技术要求等。

The principle and the features of the technique , the selection of dope and hole sealing agent and the determination of parameters during coat design are described along with the procedures and technical requirements of spray painting .

聚硅氧烷封孔处理对Cf/SiC复合材料抗氧化性能的影响

Improvement of oxidation resistance of C_f / SiC composites by polysiloxane seal treatment

稀土盐封孔Al6061/SiCp复合材料阳极氧化膜性能研究

The Study on the Properties of the Rare Earth Salt Sealing Anodized A16061 / SiCp Composites

高温封孔液的pH值研究

Research on High Temperature Hole Sealing Solution pH

Al2O3陶瓷涂层电镀和刷镀封孔机理及效果评价

Mechanism of Porosity Filling with Alumina Ceramic Coatings Using Electroplating and Brush-plating Methods and Evaluation on Their Effects

采用SEM、电化学、以及盐雾试验和湿热试验等其它方法对封孔材料与效果进行了评价。

The sealing materials and sealing efficiency was studied by means of SEM . electrochemical salt spay test and hot-humid test .

化学镀镍磷合金表面涂覆SiO2溶胶-凝胶封孔技术研究

Research on Pore Sealing of Electroless Ni-P Plating Alloy Covered with SiO_2 Sol-Gel

热喷涂涂层耐高温SiO2溶胶封孔剂的开发

Development of SiO_2 Sol Sealing Reagent Used for Thermal Spraying Coating at High Temperature

陶瓷涂层SiO2-Al2O3溶胶封孔剂的制备研究

The Study of SiO_2-Al_2O_3 Sol Sealing Reagent for Ceramic Coatings

本文介绍在NdFeB烧结永磁体上化学镀NiP并取得初步成效的一种新工艺在化学镀之前的封孔处理和两次镀NiP工艺。

In this paper , the principal features of a new technique of chemical plating Ni-P of sintering permanent magnet Nd-Fe-B & sealing before chemical plating and double-plating Ni-P technique are introduced .

SiO2溶胶封孔剂可浸入镁合金微弧氧化膜的微孔，形成有效封孔。

It could be observed that the SiO_2 sol sealing agent fills up the hole of micro-arc oxidation coating on magnesium alloy .

以正硅酸乙酯为原料，乙醇为溶剂，盐酸为催化剂制备了SiO2溶胶封孔剂。

SiO_2 sol sealing agent was prepared from tetraethoxysilane ( TEOS ) by ethyl alcohol as solvent and hydrochloric acid as catalyst .

SEM观察表明采用优化配方磷化工艺可以显著减少封孔后镁合金表面磷化膜的微观裂纹和孔洞的数量，从而提高镁合金表面磷化膜的耐腐蚀性能。

The results of SEM observation showed that optimized formula would effectively reduce the number of cracks and holes after sealing , and improve corrosion resistance of phosphate conversion films .

讨论了封孔液中镍离子含量、氟化物含量、封孔添加剂含量、杂质离子以及封孔液的pH值、温度对封孔质量的影响。

The influences of the Ni ~ + content , F ~ - content , sealing additive content , impurities , pH value and temperature of sealing solution on the sealing quality were discussed .

经除油、酸洗、封孔、活化、闪镀后，在Nd-Fe-B永磁体上进行常规化学镀Ni-P合金。

After degreasing , pickling , sealing , activating and strike plating , Ni-P alloy was deposited on the surface of Nd-Fe-B magnet .

作为对比，对未封孔的Ni-TiO2复合膜层（UCC）也做了相应研究。

For a comparison , unsealed Ni-TiO2 composite coating was also investigated .

结果表明，经硬脂酸封孔后的铝阳极氧化膜表面平整无缺陷，膜的耐蚀性显著提高，在中性NaCl溶液中耐蚀性优于经沸水法和重铬酸钾法封闭的氧化膜。

Results showed that the film was flat and no defect via stearic acid sealing , corrosion resistance of anodizing film was increased evidently in NaCl solution and better than that sealed by boiling water or potassium dichromate .

用铜、镍刷镀封孔的Al2O3涂层在NaOH20%，NaC120%溶液中的耐蚀性提高，用镍封孔的涂层的抗热冲击性能得到改善。

Filling the alumina coating with copper or nickel improves it 's corrosion resistance in the NaCl 20 % and NaOH 20 % aqueous solutions . The heat impact resistance of that filling coating is improved , however , only for nickel filling .

虽然SiC颗粒的存在影响了阻挡层的连续性，但多孔层仍能在电解质/材料界面不断生成，并且多孔层上的孔隙可以在封孔过程中得以闭合。

Though the barrier layer is discontinuous due to the presence of SiC particles , the porous layer can still form continuously on the interface of electrolyte and material , and the gaps in porous layer can be closed in subsequent sealing course .

铝型材阳极氧化后用NiF体系低温封孔剂封孔，在封孔后封孔反应仍在缓慢持续地进行，即陈化过程。

After anodizing aluminium profiles , sealing reaction with the Ni-F systematic low-temperature sealing agent will go on continuously and slowly after sealing , i.e. aging process .

该材料以针刺无纬布为预制体，依次进行了CVD炭、树脂炭和沥青炭致密，中间热处理温度为2500℃，最终进行封孔不透性改性处理。

The material taking needled non-woven cloth as reform was sequentially densified by using CVD carbon , resin-based carbon and pitch-based carbon with intermediate heat treatment temperature of 2 500 ℃, and finally the material was modified by pore filling impermeability treatment .

5h运转试验后，化学气相沉积封孔处理树脂炭基体的炭／炭复合材料磨损量最大，为0.0025mm。

The wear loss of the tested composite specimen is little , the most of the loss is only 0 . 002 5 mm for the sample with resin carbon matrix after running for 5 h.

GB/T14952.2-1994铝及铝合金阳极氧化阳极氧化膜的封孔质量评定酸浸法H2SO4浓度对6061硬质阳极氧化膜层质量的影响

Anodizing of aluminium and its alloys & Assessment of sealing quality by measurement of the loss of mass after immersion in acid solution Effect of H_2SO_4 Concentration on the Quality of Hard Anodic Oxidation Film on Aluminum Alloy 6061

结论是以超音速电弧喷涂NiAl丝材作为结合底层，金属-陶瓷材料或高铬材料作为功能层并辅以高温封孔的复合涂层的制备技术，可以同时兼顾可靠性和经济性。

It is concluded that reliability and economic efficiency can both be ensured by spraying NiAl wire with supersonic electric arc as binding bottom , using metallic-ceramic material or high chromium material as functional layer , and adopting composite coating preparing technique of high-temperature sealing .

化学镀镍层封孔新工艺的研究

Study of a new process for blocking of electroless nickel deposits

等离子喷涂氧化锆涂层封孔处理的研究现状

Research Status of Sealing Treatments to Zirconia Coatings by Plasma Spraying

氧化槽、封孔槽中离子对6063铝型材氧化膜质量的影响

Effects of Ions in Oxidizing and Sealing Bath on Oxide Film

一种有效的封孔方法钻孔技术在斜井排水中的应用

Application of drill hole technology in inclined shaft 's dewatering system

提高固体矿产钻孔封孔（水泥）质量

Increasing the quality of liquidation of holes of solid mineral deposits