查询词典 camera bellows

Currently, domestic production has successfully developed a PWR Island Grade Ⅰ electric valve, check valve; Nuclear Grade Ⅰ electric bellows globe valve, fast breeder reactor using nuclear electric bellows Ⅱ grade cut-off valves with sodium high level of nuclear valves.

目前，国内已成功研制生产了压水堆核岛核Ⅰ级电动闸阀、止回阀；核Ⅰ级电动波纹管截止阀、快中子增殖反应堆用核Ⅱ级电动波纹管钠截止阀等具有较高水平的核级阀门。

Design Bellows valve structure of the most common form of bellows globe valve and gate valve.

设计要求波纹管阀门最常用的结构形式为波纹管截止阀和闸阀。

The effects of elasticity of metal bellows on performance ofmechanical seals have been studied in detail for the first time, which has not been doneuntil now. Furthermore the relations between leakage rate, friction factor, wear rate andelasticity of bellows have been developed. These results have been verified by the teston the rig.

首次通过对焊接金属波纹管机械密封性能的理论分析，详尽探讨了波纹管弹力对机械密封性能的影响，得到了密封端面泄漏量、摩擦磨损系数与波纹管弹力关系的计算公式，并在机械密封性能的试验台架上通过了实验验证。

The revolution bellows is idealized as a series of conical frusta, joined at nodal circles. The linear finite element analysis equation and the geometrical nonlinear finite element analysis equation in Total Lagrangian Formulation for the revolution bellows are derived using stationary total potential principle.

考虑到油罐刚度比波纹管刚度大的多，将油罐看作为刚体，将波纹管部分和管道部分分别用空间梁单元离散化，通过分析得到波纹管与油罐连接接合面、波纹管与管道连接接合面不同单元之间的位移协调约束方程，并用罚函数法进行处理。

BW-WJ universal angular corrugated compensator is made up of structures such as one (or more the two namely composite universal angular type) bellows, forelock, axis, hinge plate, universal loop and standing board etc. It can absorb angular displacement in any plane and bear the pressure or thrust of the bellows. When large compens-ation is required, two or more compensator can be assembled and utilized in series. Besides, the product can also be pre-pressed, pulled or reversed when installed.

BW-WJ型万向角向型波纹补偿器由一个（或二个及以上，即复式万向角向型）波纹管、销、轴、铰链板、万向环和立板等结构件组成，能吸收任意一平面内的角位移并能承受波纹管压力推力的膨胀节，当需要大补偿量时，可采用两个或以上组合分段串联使用，并对产品预压缩、拉伸或扭转安装。

Valves with bellows seals shall be furnished with a pressure gauge as an indicator when bellows have a leak.

波纹管密封的阀门应配备一个压力表作为波纹管有泄漏的指示计。

Bellows sealed valve shut-off valves, and its key components - metal bellows, the lower end of stem components with the introduction of automatic welding roll, roll the top and连接板automatic welding, in the fluid medium and the atmosphere to form a metal barrier between the to ensure zero leakage valve stem.

阀门中波纹管密封截止阀，其关键部件——金属波纹管，下端与阀杆组件采用自动滚焊焊接，上端与连接板自动滚焊焊接，在流体介质和大气之间形成一个金属屏障，确保阀杆零泄漏。

Kai new commitment to the continued development of innovative, advanced equipment to adhere to guarantee the quality of products, from the bellows of a single type of hydraulic up to the automation of continuous pressure molding, stainless steel hose from the longitudinal seam to strip winding telescopic hose, with Path of the products from 20 mm to 400 mm range, more than 80 kinds of specifications, the annual output more than 500,000 bellows hose and vibration of professional enterprises.

启新人致力于持续的发展创新，坚持以先进的设备保证产品质量，从波纹管的单个液压涨型到连续的自动化水压成型，从纵缝不锈钢软管到钢带缠绕伸缩软管，具备了产品通径从20mm到400mm不等，80多种规格，年产量超过50万只波纹管和减振软管的专业企业。

Bellows Seal Valve Cover: Use the bellows to prevent leakage around the closure element connecting rod of a valve cover.

波纹管密封型阀盖：使用波纹管来防止截流元件连接杆周围泄漏的一种阀盖。

PTFE referred to F4, because of its excellent dielectric properties and corrosion-resistant chemical (high temperature of the molten fluoride elements and the state of alkali metal), non-absorbent, non-stick, not conductive, low coefficient of friction and not Ageing properties, and is widely used in chemical, petroleum, textile pharmaceutical, metallurgy, machinery, electronics, electrical appliances, electricity, food and aviation, military and scientific research in all walks of life, I plant the development of metal bellows, compensation , PTFE bellows F4 tetrafluoroethane compensator, F4 metal composite compensation, anti-corrosion steel liner tetrafluoroethane pipe, steel-lined tetrafluoroethane three links, elbow, Stone, the reaction tower, tower chloride, lining tetrafluoroethane valve Doors, tetrafluoroethane pads and steel-lined polypropylene pipes and accessories, and earnestly solve the user in the production process by the various anti-corrosion problems.

聚四氟乙烯简称F4，由于其优异的介电性能与耐化学腐蚀性(高温下的氟元素和熔融状态下的碱金属外)，不吸水、不粘、不导电、摩擦系数低及不老化等性能，而被广泛应用于化工、石油、轻纺制药、冶金、机械、电子、电器、电力、食品及航空、军用与科研等各行各业中，我厂开发的金属波纹管、补偿器，四氟波纹管F4四氟补偿器、F4金属复合补偿器，钢衬四氟防腐管件，钢衬四氟三通、弯头、四通、反应塔、氯化塔、衬四氟阀门，四氟垫片以及钢衬聚丙稀管道及配件，切实解决了用户在生产过程中所遇到的各种防腐问题。

In the chapter 2, the theoretic knowledge about the photosensitive resin and the grinding tools was firstly introduced.

第二章阐述了光固化树脂结合剂磨具的相关理论研究。

Do not use the program's indenting or margin-setting features; these will be added during typesetting.

不要使用缩排，页面边缘设置之类的选项，偶看不大懂。