Through repairing the fixed bed calandria reactor during the molten salt leakage test in 2×104 t/a cis-butenedioic anhydride unit in Lanzhou Petroleum and Chemical Corporation,a pack of reasonable,practical and feasible technologic means was found to confirm the leakage points caused by molten salt and to repair it in reactor.
通过对兰州石油化工公司2×104t/a顺酐装置中的固定床列管式反应器熔盐渗漏的返修,摸索出一套实用、合理可行的熔盐渗漏漏点确认以及返修的工艺方法,可为类似反应器的制造提供一定的借鉴。
The combination of salt bath nitriding and oxidation procedures produces compact and integrated Fe_3O_4 film on the surface of the workpiece and the porous area of the nitriding layer.
清洗工序和预热工序可以促进表面渗氮层均匀,避免腐蚀的加剧;盐浴渗氮和氧化工序配合,使工件表面和疏松氮化层的多孔区表面生成致密完整的Fe3O4膜;抛光和二次氧化工序降低了氧化膜产生开裂的可能性,提高了抗蚀性。
Effect of salt-bath chromizing process on microstructure and properties of chromized layer;
T12钢盐浴渗铬工艺对渗层组织和性能的影响
Effects on 45 & T10A steel in different process time of salt-bath chromizing adding rare-earth were studied.
在相同温度下,对45钢和T10A钢进行不同时间的稀土盐浴渗铬,结果表明:随着渗铬时间的延长,渗铬的效果,在总体上呈增加的趋势,45钢在4h就可以达到较好效果,而T10A钢则在6h达到较好效果。
It was investigated that chromizing in borax salt bath and melting hydrochloride.
研究了硼砂盐浴渗铬和氯系熔盐渗铬。
manual reverse osmosis desalinator
手动反向渗透除盐器
The desalination rate is over 98%.
除盐率高,单级反渗透脱盐可达到98%。
Comparative study on the effect of isotonic and hypotonic sodium chloride solution in prevention of CIN in patients undergoing cardio angioplasty
等渗与低渗盐水防治造影剂肾病的效果比较
Principal application of reverse osmosis has been in desalting brackish waters for domestic consumption.
反渗透主要应用于生活用含盐水的脱盐。
The dialysis principle can be used for demineralization of brackish water.
渗析原理的应用是除半咸水中的盐。
STUDY OF OSMOTIC DEHYDRATION OF PIKE EEL MUSCLE IN SALTING PROCESS
海鳗盐渍过程中的渗透脱水规律研究
The Study of Hypothermia and Hypertonic Saline on the Brain Infarct;
低温高渗盐水治疗脑梗死的实验研究
Studies on Metformin Hydrochloride Osmotic Pump Controlled Release Tablets;
盐酸二甲双胍渗透泵型控释片的研究
The Clinical Study of the Effect of 7.5% Hypertonic Saline on the Treatment of Intracranial Hypertension;
7.5%高渗盐水降颅压作用的临床研究
Study on Waterproofing Material Based Sulphoaluminate Cement;
硫铝酸盐水泥基防渗堵漏材料的研究
Studies on Tramadol Hydrochloride Osmotic Pump Controlled-Release Tablets;
盐酸曲马多渗透泵型控释片剂的研究
Technic and Performance of Steel 20 Treated by Low-temperature Chromizing in Salt-bath
20钢低温盐浴渗铬工艺及性能研究
Scaling control and removal for extra-low permeability reservoir in Jiyuan Oilfield
姬塬特低渗高含盐地层结垢防治效果
Study on application of ice hypertonic saline for patients accepting orthopedic operation
高渗冰盐水在骨科手术中的应用研究
Experiment on Subsurface Irrigator with Big Container for Trees and the Movement of Water and Salinity in Soil on Subsurface Drip Irrigation;
树木大容量地下渗灌器渗灌实验与土壤水盐运移特性的研究
Comparative Transdermal Penetration Study on Berberine Hydrochloride Accelerated by Aloin and Commonly Absorption Promoter
芦荟苷与传统促渗剂对盐酸小檗碱经皮促渗的实验研究
Dynamic Transformation of the Substances of Osmotic Adjustment in Winter Wheat under Iso-osmotic Salt and Drought Stresses
等渗盐分、干旱胁迫下冬小麦叶片部分渗透调节物质的动态变化
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