渗碳

Microstructure evolution in eutectoid steel during warm deformation in the temperature range from 600 to 700℃ was investigated by simulating hot compression test, SEM and thermomagnetic measurement. The effects of deformation and subsequent annealing on the spheroidizing of pearlite, refining of microstructure and dissolution of cementite were studied.

利用热模拟压缩变形、SEM和热磁法实验，研究了共析钢在600~700℃变形过程的组织演变规律，探讨了变形及随后保温过程对珠光体球化、组织超细化和渗碳体溶解、再析出的影响。

Our plant develops usualness inter-access technology communication with more than ten international famous electric furnace manufacturing companys,and repeated visits to the foreign advanced electric furnace factories and institutes every year, learning and absorbing foreign advanced industrial furnace manufacturing technology and production processes, technology, special components of electric furnace improving technology, product upgrading technology, it makes our plant keep synchronization with the international advanced industrial furnace manufacturing technology no whether in the type,the updating of furnace, fundation material progress, components manufacturing technology progess , manufacturing automation, and the way the loading of the loading basket manufacturing technology, WDS lining energy saving techniques, ceramic fiber wave of high pressure tied ceiling stack technology, oxidation-free protection atmosphere, carburizing, nitriding, molten, salt bath, nitrate Austempered, precision heat treatment process, equational flow and temperature heat transfer asymmetric quenching tank manufacturing technology, microcomputer program heat treatment technology curve temperature control process , and so on can keep pace with internationa advanced industrial electric furance manfacturing technology.

我厂与国际十多家著名电炉制造公司开展经常性互访技术交流，每年多次前往国外先进电炉制造厂和研究所，学习并吸收国外先进的工业电炉制造技术和生产过程，工艺技术，电炉专用零部件改进技术，产品更新换代技术，使我厂工业电炉产品无论在品种类型，炉种更新，基础材料进步，零部件制造技术进步，制造工艺自动化，装料方式和装料筐制造技术方式，WDS炉衬节能技术，陶瓷纤维波浪叠法高压捆扎吊顶技术，无氧化保护气氛，渗碳，氮化，盐浴，硝盐等温淬火，精密热处理工艺，均流均温换热不对称淬火油槽制造技术，微电脑程序热处理工艺曲线控温等各个方面，能够与国际上先进工业电炉制造技术保持同步。

RQ3 Series Pit Gas Carburizing Furnace is made of the furnace shell ,the furnace lining, the lid lifting bodies, vacuum sealed fan, muffle cans , heating elements and other components.

RQ3系列井式气体渗碳电炉由炉壳，炉衬，炉盖升降机构，真空密封风机，马弗罐及加热元件等组成。

Pliny, in his Natural History, Book XXXIV, describes the process of tempering used by Roman blacksmiths.

因此，我们只能认为，到公元后，罗马才有渗碳技术，（在这之前的西方其他文明有也不能代表罗马就有），在这之后，其铁器才能达到青铜的水平。

Good quality and complete specifications relay on our production technique,i,e.automatic cold forging and form ing,thread rolling and TXG heat treating.Our products can be made with different surface heat handling like Nigrescene,Zincification,Copperize,Nickel.

公司产品品质优良，规格尺寸齐全，生产技术包括自动化冷锻打造成型，轮锻辗牙及全自动 TXG 黑化热处理等优良技术，产品表面处理现有发黑、镀锌、镀铜、镀镍、渗碳等。

Good quality and complete specifications relay on our production technique,i,e.automatic cold forging and forming,thread rolling and TXG heat treating.Our products can be made with different surface heat handling like Nigrescene,Zincification,Copperize,Nickel.

公司产品品质优良，规格尺寸齐全，生产技术包括自动化冷锻打造成型，轮锻辗牙及全自动TXG黑化热处理等优良技术，产品表面处理现有发黑、镀锌、镀铜、镀镍、渗碳等。

Both both me plant and international a dozen or more home in the front rank electric heater manufacturing company unfold recurrenting exchange visits exchange of know-how,per annum time after time head for abroad advance electric heater manufactory and look into ,study combine drink in abroad advanced industry electric heater manufacturing engineering AND production run, technical skill, electric heater dedication spare improve on technology, product replacement and update technology,take me plant industry electric heater product soever at variety type, kiln strain renewal, underpinning advancement, spare manufacturing engineering advancement, manufacturing engineering automation, loading pattern AND discharge basket manufacturing engineering approach, wds brasque power-saving technology, ceramic fiber wave stack normal height prick suspended ceiling technique, non-oxidation shielding gas atmosphere, carburize, nitride, salt bath, saltpetre salt austemper, precision heat treater art, flow equalization temperature equalization recuperation asymmetry oil quenching bath manufacturing engineering, microcomputer procedure heat treatment cycle curve control warm up grade spectrrm,in a position to and internationally advance industry electric heater manufacturing engineering held in.

我厂与国际十多家著名电炉制造公司开展经常性互访技术交流，每年多次前往国外先进电炉制造厂和研究所，学习并吸收国外先进的工业电炉制造技术和生产过程、工艺技术、电炉专用零部件改进技术、产品更新换代技术，使我厂工业电炉产品无论在品种类型、炉种更新、基础材料进步、零部件制造技术进步、制造工艺自动化、装料方式和装料筐制造技术方式、WDS炉衬节能技术、陶瓷纤维波浪叠法高压捆扎吊顶技术、无氧化保护气氛、渗碳、氮化、盐浴、硝盐等温淬火、精密热处理工艺、均流均温换热不对称淬火油槽制造技术、微电脑程序热处理工艺曲线控温等各个方面，能够与国际上先进工业电炉制造技术保持同步。

The reduction temperature has great influence in constituting slag and iron phase coacervation. High temperature will add iron phase carburize and fall down melting and accelerate iron phase coacervation.

高温下有利于铁相渗碳，熔点降低，加速铁相凝聚，温度在1330~1380℃时得到的铁颗粒大小较均匀；④渣相碱度高低对渣铁的分离产生较大的影响。

The present invention has the hot treating furnace pre-vacuumized to 10-100 Pa, introduced with high purity nitrogen and heated to 900-1050 deg.c, before maintaining and introducing acetylene gas to carburize at nitrogen pressure of 0.1-0.11 MPa and acetylene gas pressure of 5000-20000 Pa.

本发明通过向设有炉内循环风机的热处理炉进行预抽真空至10-100Pa，通入高纯氮气，再将炉温升至900-1050℃，保温后再通入乙炔气进行渗碳，炉膛内氮气的压力为1×10 5 -1.1×10 5 Pa之间，充入的乙炔分压为5000-20000Pa之间。

Special temperature sensor must be developed in order to meet the need of specific environment including highly erodent, heat melt, vacuum and carburizing etc. die characteristic.

对于测量条件恶劣，不能用常规传感器实现的温度测量，如高温强腐蚀性介质、高温熔体、真空、渗碳条件下，必须开发特种专用传感器。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新