前炉

Characters of Cast Iron Melted in the Coreless Induction Furnace and ...

同时阐述了工频炉熔炼铸铁炉前控制的操作规范。

In recent years, companies step up the development of the fast lane: the completion of the production run has been an annual output of 150,000 tons of pig iron smelting companies; under construction, the modernization of 30,000 tons annual output of castings and machining parts auto parts company has advanced Vertical shot molding pressure, the level of sub-type microseism compaction modeling line, self-hardening resin sand molding line, dual power supply frequency melting furnace, sand automated treatment systems, as well as CNC machining centers and machining equipment production lines production equipment, with direct-reading spectrometer, casthouse Express analyzer, Coordinate measuring instrument, ultrasonic flaw detector such as the modernization of non-destructive testing equipment and a full range of conventional detection equipment; at the same time the company has a skilled use of CAD / CMD technology design, manufacturing, machining workforce and more than ten years such as day, love and respect their jobs, and accumulated rich experience in foundry staff.

近年来，公司步上了发展的快车道：建成了已投产运行的年产15万吨生铁的冶炼公司；正在建设的现代化的年产30000吨铸件和机加工件的汽车零部件公司拥有先进的垂直分型射压造型线、水平分型微震压实造型线、自硬树脂砂造型线、双供电中频熔化炉、自动化的砂处理系统以及加工中心和数控设备组成的机加工生产线等生产设备，拥有直读式光谱仪、炉前快速分析仪、三坐标测量仪、超声波无损探伤仪等现代化的检测设备和齐全的常规检测设备；同时公司拥有一支熟练运用CAD/CMD技术进行设计、制造、机械加工的员工队伍和十几年如一日、爱岗敬业、积累了丰富经验的铸造员工队伍。

A method for eliminating the internal oxide structure in the gas-phase carbon-nitrogen osmosis of gear features that the CCL4 is added to the kensene as carburizer and then is decomposed to generate Cl2 for reducing the oxide, the ammonia gas as nitrizing agen passes through the cylinder of silica gel or granular calcium chloride for adsorbing residual water vapour and then through the cylinder of 5A molecular sieve for adsorbing residual O2, and the resistance wire is wound on igniting pipe at furnace top to prevent the NH4Cl in exhausted gas from being condensed.

本方法采用在气体渗碳剂煤油中，加入6～8％的CCl 4 ，使共渗炉内的CCl 4 分解出新生的Cl 2 ，使已形成的合金元素内氧化物还原；在渗碳剂氨气入共渗炉前，先经过硅胶瓶或桶及粒状氯化钙瓶或桶过滤，吸附掉氨气中的残留水蒸汽，再经过5A分子筛瓶或桶吸附掉氨气中的残留氧；在靠近炉顶位置的点火管周围缠绕带瓷环的电阻丝，靠电阻丝的副带加热，使排气中的NH 4 Cl不冷凝结块等措施实现内氧化组织的消除。

The reaction mechnism of metal silicon and the results, reasons and premise of proper casthouse operation are introduced.

工业硅生产的炉前操作，主要是指生产中的配产能力严重过剩。料、混料、加料、捣料、配电和出炉等一系列作业。

Huaxin Foundry Co., Ltd. Since its establishment, has fixed assets of more than 5500 million yuan, covers an area of more than 58,000 square meters, of which cast more than 28,000 square meters area, processing area of more than 8000 square meters, existing staff 380 people, engineers and technicians More than 20 people, including senior engineer 4 people, the company is equipped with five tons Cupola | 7 hours, 3 tons | 2 hours, casthouse analyzer 2. 1000kg, 750kg, 500kg IF one of the sets of electric furnace.

华欣铸造有限公司自创建以来，已拥有固定资产5500多万元，占地面积58000多平方米，其中铸造面积28000多平方米，加工面积8000多平方米，现有职工380余人，工程技术人员20余人，其中高级工程师4人，公司配有冲天炉5吨|小时7座，3吨|小时2座，炉前分析仪2台。1000kg、750kg、500kg中频电炉各一台套。

producing of metal silicon, casthouse operation, enterprise benefits, high output, good quality, low consumption

这与国外普遍采用的 10 MVA以上容量的工面下功夫，不断提高操作水平。业硅炉相比，突出的弱点是热容量小，热稳定性差，捣好炉前操作

Units owned equipment, the main production equipment 580 Units, Italian IMF has introduced the company's resin-bonded sand box modeling off line, 2 Units 3-ton electric arc steelmaking furnace, 40 tons of computer control the whole rationale for fiber outside the hot gas furnace, CNC machine tools , Co60-ray machine and the introduction of control the United States hurt the company's 32-channel Baird casthouse Express Direct Reading Spectrometer and other important advanced equipment.

公司拥有设备1130台，其中主要生产设备580台，有引进意大利IMF公司的树脂砂脱箱造型线、2台3吨电弧炼钢炉、40吨微机控制全纤维燃气热外理炉、数控机床、Co60射线控伤机及引进美国BAIRD公司的32通道炉前快速直读光谱分析仪等重要先进设备。

Under the electromagnetic force the angle steel and the steel plate, in puts in gallbladder which the steel plate makes, in the gallbladder is uses sets up the salt bath which the brick and the standard brick compose, in the gallbladder is mainly uses in preventing the fused salt permeating heat insulating

三项埋入式电极盐浴炉采用盐类作加热剂，根据不同的工作温度，可选用不同成份的盐或混合盐，盐在熔化前是不导电的，因此盐浴炉使用时必须使用起动电极溶化，由于电流通过导电的溶盐不断产生热量，故可保持溶化状态，因电极在电磁力的作用下，通过自然对流和电磁搅拌而使熔盐不断循环，故可迅速和均匀的加热工件。

A wholly foreign-owned enterprise, located in Shanghai Songjiang Development Zone, convenient transportation and excellent production conditions to the Company's products are mainly tea, and coffee pot, tea ceremony utensils and microwave oven supplies mainly with manual processing, furnace before blowing, furnace workers after the lights, automatic molding processing mechanized production of specializing in the production of heat-resistant glass manufacturer.

本公司产品主要以冲茶器、咖啡壶、茶道用具及微波炉用品为主，与手工加工、炉前吹制、炉后灯工、加工机械化自动成型生产为一体的专业生产耐热玻璃的生产厂家。

Analysis of annealing process and optimization patterns show that there is still a great space to improve the design pattern used from both End-Of-Cycle K〓 and maximum power peak factor aspects.

最后，本论文使用SANNEM对低温核供热堆前两炉堆芯燃料管理优化问题进行了实例计算，获得了首炉和第二炉的8个优化方案。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。