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常用金属材料手册

常见金属材料基础知识（简要读本 ― ― 仅供内部使用）（ 2008 VER.） -1-
4.热轧 H 型钢........................................................................................................ 35 5.冷弯型钢............................................................................................................ 35 第六节管材知识.......................................................................................................... 36 1.管材的分类......................................................................................................... 36 2.无缝钢管............................................................................................................ 36 3.焊接钢管............................................................................................................ 37 第七节不锈钢知识...................................................................................................... 37 1.不锈钢热轧钢..................................................................................................... 37 2.不锈钢冷轧钢板.................................................................................................. 38 3.各种不锈钢的特性和用途.................................................................................... 39 4.世界各国不锈钢标准钢号对照表 ......................................................................... 39 第二讲有色金属材料（非黑色金属） ................................................................................. 42 第一节有色金属概述................................................................................................... 42 1.有色金属分类..................................................................................................... 42 2.有色金属产品牌号表示方法................................................................................ 43 第二节铜及铜合金...................................................................................................... 46 1.纯铜................................................................................................................... 46 2.铜合金................................................................................................................ 46 3.铜材................................................................................................................... 49 第三节铝及铝合金...................................................................................................... 52 1.纯铝产品............................................................................................................ 52 2.压力加工铝合金.................................................................................................. 53 3.铝材................................................................................................................... 54 4.铸造铝合金......................................................................................................... 54 5.高强度铝合金..................................................................................................... 55 第三章金属腐蚀基础................................................................................................................. 56 第一讲金属腐蚀概述.......................................................................................................... 56 第一节金属腐蚀的分类............................................................................................... 56 第二节金属腐蚀的形态............................................................................................... 56 1.全面（均匀）腐蚀.............................................................................................. 57 2.孔蚀................................................................................................................... 57 3.缝隙腐蚀............................................................................................................ 58 4.脱层腐蚀............................................................................................................ 59 5.晶间腐蚀............................................................................................................ 59 6.选择性腐蚀......................................................................................................... 60 7.磨损腐蚀............................................................................................................ 60

常用稳压管型号

经常使用稳压型号参数查询之邯郸勺丸创作DZ是稳压管的电器编号,1N4148就是一个0.6V的稳压管,下面是稳压管上的编号对应的稳压值,有些小的稳压管也会在管体上直接标稳压电压,如5V6就是5.6V的稳压管.美标稳压二极管型号：HITACHI(日立)：HITACHI(日立)0.5W稳压二极管型号参数稳压HZ3A1 2.5~2.7VHZ3A2 2.6~2.8VHZ3A3 2.6~2.9VHZ3B1 2.8~3.0VHZ3B2 2.9~3.1VHZ3B3 3.0~3.2V线性稳压器件(输入输出电流相等,压降3V以上)型号稳压(V) 最大输出电流可替代型号79L05 -5V 100mA79L06 -6V 100mA79L08 -8V 100mALM7805 5V 1A L7805,LM340T5LM7806 6V 1A L7806LM7808 8V 1A L7808LM7809 9V 1A L7809LM7812 12V 1A L7812,LM340T12LM7815 15V 1A L7815,LM340T15LM7818 18V 1A L7815LM7824 24V 1A L7824LM7905 -5V 1A L7905LM7906 -6V 1A L7906,KA7906LM7908 -8V 1A L7908LM7909 -9V 1A L7909LM7912 -12V 1A L7912LM7915 -15V 1A L7915LM7918 -18V 1A L7918LM7924 -24V 1A L792478L05 5V 100mA78L06 6V 100mA78L08 8V 100ma78L09 9V 100ma78L12 12V 100ma78L15 15V 100ma78L18 18V 100ma78L24 24V 100ma开关稳压器件(电压转换效率高)型号说明最大输出电流LM1575T-3.3 3.3V简易开关电源稳压器1ALM1575T-5.0 5V简易开关电源稳压器1ALM1575T-12 12V简易开关电源稳压器1ALM1575T-15 15V简易开关电源稳压器1ALM1575T-ADJ 简易开关电源稳压器(可调1.23V~37V) 1ALM1575HVT-3.3 3.3V简易开关电源稳压器1ALM1575HVT-5.0 5V简易开关电源稳压器1ALM1575HVT-12 12V简易开关电源稳压器1ALM1575HVT-15 15V简易开关电源稳压器1ALM1575HVT-ADJ 简易开关电源稳压器(可调1.23V~37V) 1ALM2575T-3.3 3.3V简易开关电源稳压器1ALM2575T-5.0 5V简易开关电源稳压器1ALM2575T-12 12V简易开关电源稳压器1ALM2575T-15 15V简易开关电源稳压器1ALM2575T-ADJ 简易开关电源稳压器(可调1.23V~ 37V) 1ALM2575HVT-3.3 3.3V简易开关电源稳压器1ALM2575HVT-5.0 5V简易开关电源稳压器1ALM2575HVT-12 12V简易开关电源稳压器1ALM2575HVT-15 15V简易开关电源稳压器1ALM2575HVT-ADJ 简易开关电源稳压器(可调1.23V~37V) 1ALM2576T-3.3 3.3V简易开关电源稳压器3A LM2576T-5.0 5.0V简易开关电源稳压器3A LM2576T-12 12V简易开关电源稳压器3A LM2576T-15 15V简易开关电源稳压器3A LM2576T-ADJ 简易开关电源稳压器(可调1.23V~37V) 3A LM2576HVT-3.3 3.3V简易开关电源稳压器3ALM2576HVT-5.0 5.0V简易开关电源稳压器3ALM2576HVT-12 12V简易开关电源稳压器3ALM2576HVT-15 15V简易开关电源稳压器3ALM2576HVT-ADJ 简易开关电源稳压器(可调1.23V~37V) 3A。

FQP44N10中文资料

Avalanche Current
(Note 1)
Repetitive Avalanche Energy
(Note 1)
Peak Diode Recovery dv/dt
(Note 3)
Power Dissipation (TC = 25°C) - Derate above 25°C
Operating and Storage Temperature Range
--
--
--
--
--
--
1 10 100 -100
V
V/°C
µA µA nA nA
On Characteristics
VGS(th) RDS(on)
Gate Threshold Voltage
Static Drain-Source On-Resistance
gFS
Forward Transconductance
2. L = 0.42mH, IAS = 43.5A, VDD = 25V, RG = 25 Ω, Starting TJ = 25°C 3. ISD ≤ 43.5A, di/dt ≤ 300A/µs, VDD ≤ BVDSS, Starting TJ = 25°C 4. Pulse Test : Pulse width ≤ 300µs, Duty cycle ≤ 2% 5. Essentially independent of operating temperature
-- 19
45
ns
-- 190 390
ns
--
90 190
ns
(Note 4, 5)
--
100
210
ns
VDS = 80 V, ID = 43.5 A,

施耐德电气 MN4000 料位开关振棒式操作手册说明书

page 内容目录页码安全须知 / 技术支持2-----------------------------------------------------------------------------------------------------简介3-----------------------------------------------------------------------------------------------------技术参数4-----------------------------------------------------------------------------------------------------认证8-----------------------------------------------------------------------------------------------------可选项9-----------------------------------------------------------------------------------------------------安装10-----------------------------------------------------------------------------------------------------电气安装13-----------------------------------------------------------------------------------------------------信号输出16-----------------------------------------------------------------------------------------------------灵敏度设置16----------------------------------------------------------------------------------------------------- 维护17-----------------------------------------------------------------------------------------------------危险区域应用须知18-----------------------------------------------------------------------------------------------------组装 MN 404020-----------------------------------------------------------------------------------------------------废弃23-----------------------------------------------------------------------------------------------------技术如有更新，恕不另行通知。

常用危险化学品分类明细表

附录A
常用危险化学品分类明细表
（补充件）
A1 第1类爆炸品
A1。1 具有整体爆炸危险的物质和物品。
表A1
序号
品名
别名
分子式
(或结构式）
主（次）
危险性类别
危险特性
标志
1
2，4,6—三硝基甲苯
（干的或含水<30%）
trinitrotoluene
梯恩梯
茶色炸药
CH3C6H2（NO2)3
爆炸性
（有毒)
HF
5。75,5。95,
5.98，5。105,
5。111，5。145
9
氨（液化的，含氨＞50％)
ammonia
液氨
NH3
有毒气体
5。1,5。13，
5。20,5。75,
5。94，5.107，
5.111
4
10
氯（液化的）
chlorine
液氯
Cl2
5.63,5。75,
5。104，5.107
11
氯化氰（抑制的）
有毒气体
5.75，5.94，
5.107，5。111
4
2
二氧化氮（液化的）
nitrogen dioxide
四氧化二氮
过氧化氮
NO2或 N2O4
有毒气体
（腐蚀性）
5.99,5.104,
5.107,5.114，
5.115
4
（27)
3
三氟化氮
nitrogen trifluoride
氟化氮
NF3
有毒气体
5.49，5。71,
2,4,6-ammonium tri-
nitrophenol

vhdl通用十进制加法器

湖南人文科技学院课程设计报告课程名称：VHDL语言与EDA课程设计设计题目：通用十进制加法器系别：通信与控制工程系专业：电子信息工程班级：学生姓名:学号:起止日期:指导教师:教研室主任：指导教师评语：指导教师签名：年月日成绩评定项目权重成绩1、设计过程中出勤、学习态度等方面0.22、课程设计质量与答辩0.53、设计报告书写及图纸规范程度0.3总成绩教研室审核意见：教研室主任签字：年月日教学系审核意见：主任签字：年月日摘要随着科技的发展，通用十进制加法器的应用已广泛融入到现实生活中。

EDA 技术的应用引起电子产品及系统开发的革命性变革。

本文采用EDA技术设计，并以VHDL语言为基础制作的通用十进制加法器。

该系统借助于强大的EDA工具和硬件描述语言可实现两个一位以上的十进制数的加法，在输入两个十进制数之后，给出两个数的相加结果。

本设计充分利用VHDL“自顶向下”的设计优点以及层次化的设计概念，提高了设计的效率。

设计主要步骤：首先利用QUARTUS‖来编辑、编译、仿真各个模块；然后以原理图为顶层文件建立工程，再进行引脚锁定、编译、下载，最后采用杭州康芯电子有限公司生产的GW48系列/SOPC/EDA实验开发系统，进行硬件测试。

关键词：通用十进制加法器；EDA技术；VHDL语言; QUARTUS‖目录设计要求 (1)1、方案论证与对比 (1)1.1方案一 (1)1.2方案二 (1)1.3 方案的对比与选择 (2)2、设计原理 (2)3、通用十进制加法器的主要硬件模块 (3)3.1 4位BCD码全加器模块 (3)3.2八加法器的实现框图 (3)4、调试与操作 (4)4.1通用十进制加法器的功能仿真 (4)4.2模式选择与引脚锁定 (4)4.2.1模式选择 (4)4.2.2引脚锁定 (5)4.3设备与器件明细表 (6)4.4调试 (6)4.4.1软件调试 (6)4.4.2硬件调试 (6)5、总结与致谢 (7)5.1总结与思考 (7)5.2致谢 (7)附录 (8)附录一 (8)附录二 (9)参考文献 (11)通用十进制加法器设计要求1、用VHDL 硬件描述语言设计4位的BCD 码全加器；2、以4位BCD 码全加器为模块设计两位十进制数的加法。

四氨合铜的氮氢键键角

四氨合铜的氮氢键键角1.引言1.1 概述概述部分的内容可以按照以下方式编写：在化学领域，氮氢键是一种重要的化学键，它的存在与否直接影响了化合物的结构和性质。

氮氢键通常由氮原子上的孤对电子与氢原子上的正电荷形成。

氮氢键的形成是通过轨道重叠来实现的，其中氮原子的孤对电子与氢原子的1s轨道重叠形成σ键。

氮氢键的键能较弱，通常在10-30 kcal/mol范围内，因此它经常参与到分子中的反应和分子间相互作用中。

本文将重点研究四氨合铜中氮氢键的键角对其结构和性质的影响。

四氨合铜是一种重要的化合物，它由四个氨分子和一个铜离子组成。

氮氢键在四氨合铜中起到了至关重要的作用，它们不仅决定了分子的空间构型，还能影响化合物的电子结构和化学性质。

因此，研究氮氢键键角对四氨合铜的影响具有重要的理论和实际意义。

通过深入研究氮氢键键角，我们可以更好地理解四氨合铜的结构和性质。

进一步地，这项研究有望为设计和合成新型氮氢键化合物提供指导，并为开发新型催化剂和功能材料提供有力支持。

因此，本研究的目的是通过实验和理论模拟相结合的研究方法，揭示氮氢键键角对四氨合铜的影响机制，并探讨可能的应用和进一步的研究方向。

通过对氮氢键键角的研究，我们将进一步拓展对氮氢键的理解，为相关领域的研究提供新的思路和方法。

同时，本研究也有望探索其他金属配合物中氮氢键角的影响，并为实现更多具有特殊结构和性能的化合物提供重要参考。

在接下来的章节中，我们将详细介绍氮氢键的定义和特点以及四氨合铜的结构和性质，以期深入揭示氮氢键键角在四氨合铜中的重要作用。

1.2文章结构文章结构是撰写一篇长文时需要遵循的逻辑组织方式，它可以帮助读者理解文章的主题和内容。

本文的文章结构如下：1. 引言1.1 概述1.2 文章结构1.3 目的2. 正文2.1 氮氢键的定义和特点2.2 四氨合铜的结构和性质3. 结论3.1 氮氢键角对四氨合铜的影响3.2 可能的应用和进一步研究方向在本篇长文中，我们将首先在引言部分进行概述，介绍氮氢键和四氨合铜的重要性和相关研究现状。

Hy-Gain DB-1217 7-元素双带菱形抗风天线说明书

308 Industrial Park Road Starkville, MS 39759 USAPh: (662) 323-9538 FAX: (662) 323-6551D B -1217Duo-Monoband Beam 7 -Element, 12 and 17 MeterI N S T R U C T I O N M A N U A LGeneral DescriptionThe Hy-Gain DB-1217 is a 7 element, 2 band beam antenna designed for operation on the 12and 17 meter amateur bands. The DB-1217 uses Hy-Gain's unique Para-Sleeve driven element,monoband reflectors and directors, and Hy-Gain's rugged boom-to-mast bracket. The DB-1217 will mount on a standard 2" O.D. mast and can be rotated with Hy-Gain's CD-4511 or HAM-IV/V rotators. All hardware is stainless steel.Hy-Gain's Para-Sleeve* driven element and the monoband parasitics allow 3 element monobander performance on each of the two bands! In addition, the DB-1217 includes assembly dimensions for either 12/17 meters or 10/ 15meters! The DB-1217 is designed to survive 115MPH winds with no ice and 80 MPH winds with 0.25 inch radial ice! This antenna also features a 4 piece boom and a 49" (1.24m) shippingcontainer - ideal for DXpeditions.*References: U.S. Patent Number 4,604,628. "The Open-Sleeve Antenna", CQ Magazine, Vol. 39, No.8, August 1983, Pages 13-19. The ARRL Antenna Book, 16th Edition and later, "The Open-Sleeve Antenna", Multiband Antennas Chapter.Preparation for AssemblyFOR OUR OVERSEAS CUSTOMERS: The United States uses American units ofmeasurement. Please see page 8 of this manual for American-to-Metric conversion. Mostillustrations include both American and Metric dimensions.When unpacking your antenna, check inside of all tubing for smaller tubes. To conserve space and protect parts, these parts are packed this way.Check all parts against the parts list to ensure none are missing.Choose a large, clear area to assemble your 1313-1217 antenna. The area must be at least 14' x 30'(4.3 m x 9 m). You may wish to use a temporary mast to support the boom during assembly.Assemble the two cast aluminum brackets (Item 1) on your temporary mast about 4 feet (1 m)above ground. Secure the two brackets together using the two 5/16"-18 x 3" bolts, nuts andlockwashers. Tighten these two bolts evenly until the brackets are snug.Attach the boom assembly to these two brackets using the four 5/16"-18 x _5" bolts, nuts andlockwashers (Items 35, 38 and 39). Tighten these four bolts just enough to hold the weight of the antenna.Assemble the remaining two boom sections (Item 7) to the ends of the assembled boom using 1/4"-20 x 2 1/2" screws, nuts, and lockwashers.Tighten securely.All tubing supplied with the D13- 1217telescopes together. Make all measurements to the given dimensions, plus or minus no more than1/8 inch (3 mm).Assembly of the BoomSelect the boom-to-mast clamps (Items 5 and 6).Loosely assemble them on the drilled ends of the two boom sections (Item 8) using the 1/4"-20 x 3/4" bolts, 1/4" nuts and lockwashers (Items 41,44 and 45). Secure the boom to the bracket using the two 5/16"-18 x 2 3/4" screws, nuts andlockwashers (Items 37, 38 and 39). Tighten thesesix bolts securely.Figure 1 Boom-to-MastBracketElement-to-Boom BracketsThere are three sizes of element-to-boom brackets supplied. The largest (Item 4) has a 1 1/2" I.D.,and is used only on the 17m driven element. The medium-sized brackets (Item 3) have a 1 1/4"I.D., and are used on the 17m reflector and director elements. The smallest brackets (Item 11) have a 7/8" I.D., and are used on the all of the 12m elements.Assemble the brackets as shown in Figure 2 and position them on the boom as shown in Figure 8.It is easier to assemble the brackets on the boom at the correct location, rather than try to slide them on the boom. If you are going to leave this assembly unattended for more than 15 minutes,we suggest that you tighten the eight (8) bolts on each bracket, so that they do not vibrate off. Do not tighten the two (2) anchor bolts (Item 40)until the elements are installed and aligned.Figure 2 Element-to-BoomBracketTubing ClampSelect the proper size tubing clamps as shown in Figure 3. When installing the clamps, place the clamp near the tube end with the top of the clamp over the slot in the tube as shown. After adjustment of the tubing lengths, tighten the clamp with a 5/16 inch (8 mm) nut driver until the tubing will not twist or telescope. DO NOTovertighten!Figure 3 Tubing ClampAssemblySettingsThe DB-1217 is supplied with 3 settings - 12/17,10/15 - CW and 10/15 - Phone. Choose one of these settings to use in assembling this antenna.Typical VSWR curves shown in Figure 4 will help you decide which setting to use.The VSWR curves are typical for this antenna mounted 70 feet (21.3 m) above ground. Similar curves can be expected for this antenna mounted between 30 feet (9.1 m) and 100 feet (30.5 m)above ground. Do not try to tune this antenna for low VSWR at ground level!Figure 4VSWRCurvesElement AssemblyFigure 5 Reflector AssembliesSelect the remaining tubing parts and tubing clamps. Assemble each element as shown in Figures 5, 6, and 7. Mark each element with an indelible marker. Use "17R" for the 17m reflector sections, "17DE" for the 17m driven element sections, and "17DIR" for the 17m director sections.Mark the 12m sections in the same manner.Install the driven element insulators (Item 29)and the 1 1/4" tubing clamp assemblies onto the large ends of the 17m driven element sections.See Figure 3 for clamp assembly details.Penetrox-A® is supplied for use as an anti-oxidant within the element tubing assembliesPenetrox® is a registered trademark of $urndy CorporationFigure 6Driven Element AssembliesFigure 7 DirectorAssembliesSelect each completed element assembly and install each into the appropriate element-to-boom bracket. Refer to the Overall View in Figure 8.Tighten the eight (8) 1/4"-20 x 3/4" bolts on each bracket until it is difficult to rotate the bracket on the boom. Make sure the anchor bolts in thecenter of each bracket are still loose at this point.Recheck the spacings between the elements and adjust if necessary. Align all elements so that they are parallel to the ground and at a right angle to the temporary mast. When all elements are aligned, securely tighten the eight bolts and two anchor bolts on each element.Figure 8 DB-1217Overall ViewBeta Match AssemblyNOTE: DO NOT ALLOW THE BETA RODSTO TOUCH THE ELEMENT -TO -BOOM BRACKETS OR THE 12mELEMENTSelect the left and right beta match rods (Items 9 and 10), beta match clamps (Items 2 and 22), and #10-24 hardware. Assembleas shown in Figure 9.Figure 9 Beta MatchAssemblyNOTE: COVER COAX DIELECTRIC WITH BLACK TAPE OR HEAT SHRINK TUBINGTO PREVENT CRACKING FROM U.V. EXPOSURE.BalunChoicesFigure 10 Coax StrippingThe D13- 1217 does not include a balun, however it is recommended that a balun or coaxial RF choke be used at the feedpoint. A voltage-balun such as the Hy-Gain BN-86 may be used ifantenna tuners and high-power amplifiers will not be used together with this antenna.The cast aluminum boom-to-mast brackets must be removed from the temporary mast and installed on the permanent mast as shown in Figure 1.Attach a gin pole to the tower or mast to assist in lifting the antenna. There must be at least two (2)people available when installing this antenna. DO NOT try to install this antenna by yourself!A current-type balun such as the Hy-Gain BN-4000 is highly recommended, especially if this antenna will be used off-resonance with antenna tuners and high-power amplifiers. Anotheralternative is to use a home-made RF choke. This works identical to the current-type balun.The RF choke may be wound from 12 turns of RG-213/U on a 6 inch diameter form. One end should be stripped as shown in Figure 10. The RF choke MUST be mounted at the driven element.InstallationDouble-check all dimensionsconnections before installation.and tighten all Attach the lifting rope to the balance point of the antenna. The lifting rope should be fed through the gin pole or other pulley arrangement attached to the tower. The other end should be at ground level, available to the ground crew for lifting.When the antenna reaches the mast bracket, pin the antenna to the cast brackets with a single 5"bolt. This takes the weight of the antenna off the lifting rope and allows the person at the top of the tower to tilt the antenna up, so that the other three 5" bolts may be installed. Tighten all four of the 5/16"-18 x 5" bolts (Item 35) securely. Check the direction of the antenna for use in calibrating your rotator and reposition if necessary. Tape the coaxial cable to the mast, leaving a loop for rotation. This completes your installation of the DB- 1217.WARNING!Installation of this antenna near power lines is dangerous! For your safety,follow the instructions provided with your tower and the instructions in this manual. NEVER 'install" this antennali !ServiceIf you are encounter techical problem and need assistance, you should contact Hy-Gain Customer Service Department.Hy-Gain308 Industrial Park RoadStarkville, Mississippi 39759 USA Phone: 662-323-9538Parts ListItem No. 1Part No.102734Description QtyMast Bracket, cast aluminum (2)2163371Clamp, beta shorting (2)3165919Bracket, Element-to-boom, #13 (4)4165920Bracket, Element-to-boom, #14 (2)5172732Clamp, Boom-to-bracket (1)6172735Bracket, Casting-to-boom (1)7179892Tube, 2" x.049 x 42 1/2", drilled (2)8179893Tube, 2" x.049 x 46 1/2", swaged (2)9170067Beta rod, 1/4" left (1)10170068Beta rod, 1/4" right (1)11163764Bracket, Element-to-boom, #4 (8)12190307Tube, aluminum, 1 1/8" x 38" (6)13172922Tube, aluminum, 7/16" x 47" (6)14175512Tube, aluminum, 7/16" x 42 3/4" (8)15190004Tube, aluminum, 5/8" x 24" (6)16190015Tube, aluminum, 5/8" x 33 (8)17190205Tube, aluminum, 7/8" x 44" (6)18190906Tube, aluminum, 1 1/4 x 16 3/4" (2)19191025Tube, aluminum, 7/8" x 48 (8)20878579Tube Assembly, Driven Element, 1 1/4" x 35" (4)21873725Parts Pack Clamps DB 1217 (1)22171777Clamp, 1 1/4", tubing (2)23358756Clamp, #6 tubing (28)24358757Clamp, #10 tubing (6)25358758Clamp, #16 tubing. (6)26878726Parts Pack Insulator (1)27455625Caplug, 2.. (2)28455644Caplug, 7/16" (14)29465833Insulator, driven element (2)30878727Parts Pack Hardware DB 1217 (1)31500159Bolt, #10-24 x 1 1/2", hex head, stainless steel (2)32504069Bolt, #10-24 x 1, hex head, stainless steel (4)33554071Nut, #10-24 hex, stainless steel (8)34565697Lockwasher, internal, #10, stainless steel (10)35500349Bolt, 5/16"-18 x 5", hex head, stainless steel (4)36500392Bolt, 5/16"-18 x 3", hex head, stainless steel (2)37506968Bolt, 5/16-18 x 2 3/4", hex head, stainless steel (2)38555747Nut, 5/16"-18, hex, stainless steel (8)39564792Lockwasher, 5/16", split, stainless steel (12)40500156Bolt, 1/4"-20 x 3/8", hex head, stainless steel (14)41505266Bolt, 1/4"-20 x 3/4", hex head, stainless steel (60)42505734Bolt, 1/4"-20 x 2 1/2", hex head, stainless steel (2)43551367Nut, 1/4"-20, square, stainless steel (14)44554099Nut, 1/4"-20, hex, stainless steel (62)45562961Lockwasher, 1/4" internal (62)46878697Penatrox-A®, 1 oz. (1)Penetrox® is a registered trademark of Burndy Corporation。

CU4中文资料

4-64Safety RelaysTiming Control UnitsCU4DescriptionThe CU4 is an off-delay timing unit which can be operatedstandalone or as an extension of a host relay. The timed outputs are used in applications where power must be maintained for a fixed duration after an input signal is received. For example, driving a power to lock TLS2-GD2 to maintain a guard door in the locked position for a fixed duration after a stop button is pressed. Another example would be maintaining the connection of a drive to a motor until the braking function is achieved, and then dropping out a contactor to remove power to the motor.The inputs can be connected in either a single channel or dual channel configuration. The inputs must remain closed during the complete timing cycle. Opening the contacts before the timing cycle completes causes the timer to be reset to zero.The CU4 has a redundant structure with two independent safe timer circuits. The outputs include two normally open safety delayed outputs as well as one normally closed safety output. The safety outputs have independent and redundant internal contacts to help ensure the safety function. When used an extension of a host relay, the normally closed contacts should be used in the feedback loop of the host relay. If used in standalone application, the normally closed contacts can be used to signal an auxiliary device or PLC. A typical operation starts with power applied to A1/A2 and the input circuits open.1.Close the B11/B12 and B21/B22 circuits.a. The safety outputs (17/18 and 27/28) close immediately.2.Open the B11/B12 or B21/B22 circuits.a. The timing process starts.b. The safety outputs (17/18 and 27/28) open after the time expires.3.Go to Step 1.Features•Category 3 per EN 954-1•Stop category 1•Timed off-delay 0.15s to 30s • 2 Safety contacts • 1 Auxiliary contact •1 Monitoring contactSpecifications➊ See Output Ratings on page 1-29 for details. Consult factory for ratings notshown.Standards EN 954-1, ISO 13849-1, IEC/EN 60204-1, IEC 60947-5-1, ANSI B11.19, AS4024.1Category Cat. 3 per EN 954-1 (ISO13849-1)Approvals C-Tick, CE marked for allapplicable directives, cULus and BG Power Supply 24V AC/DC, 50/60 Hz 0.85 to 1.1 x rated voltage Power Consumption 2.5WSafety Inputs 1 N.C. or 2 N.C.Input Simultaneity InfiniteOutputs2 N.O. Safety; 1 N.C. Auxiliary ➊ Output Utilization per IEC 60947-5-1 (Inductive)B300 AC-155A/250V AC, 5A/125V AC N300 DC-13 3A/24V DC Timed Off-Delay 0.15 to 30sFuses Output External 6A Slow Blow or 10A Quick Blow Min. Switched Current/Voltage 10mA/10V Contact Material Ag Sn O 2/0.5µ Au Response Time 30msecIndication LEDsGreen = PowerGreen =CH t1 Active Green = CH t2 active Impulse Withstand Voltage 2500V Pollution Degree 2Operating T emperature -5°C to +55°C (+23°F to 131°F)Humidity90% RH Enclosure Protection IP40 (NEMA 1)T erminal Protection IP20Maximum Conductor Size 0.2–4mm 2 (24-12AWG)T orque Settings—terminal screws 0.4Nm (3.54lb²in)Mounting 35mm DIN rail Weight165g (0.36lbs)Electrical Life220V AC/4A/880VA cos ϕ=0.35220V AC/1.7A/375VA cos ϕ=0.630V DC/2A/60W 10V DC/0.01A/0.1W 100,000 operations 500,000 operations 1,000,000 operations 2,000,000 operations Mechanical Life 2,000,000 operations Vibration 10-55 Hz, 0.35mm Shock10g, 16ms, 100 shocksSafety Relays4-65Timing Control UnitsCU4Product SelectionDimensions—mm (inches) Block DiagramTypical Wiring DiagramsInputs Safety OutputsAuxiliary OutputsTiming Range Catalogue Number1 N.C. or2 N.C.2 N.O.1 N.C.0.15 – 3s 440R-S231730.5 – 10s 440R-S231741.5 – 30s440R-S23175Dual Channel Wiring to CU4 InputsSingle Channel Wiring to CU4 Inputs。

高压球阀-Q41N高压球阀

球阀>>高压球阀>>高压球阀产品详细信息球阀系列价格供用户或设计院工程项目做预算一、阀门的选型步骤1.明确阀门在设备或装置中的用途，确定阀门的工作条件：适用介质、工作压力、工作温度等等。

2.确定与阀门连接管道的公称通径和连接方式：法兰、螺纹、焊接等。

3.确定操作阀门的方式：手动、电动、电磁、气动或液动、电气联动或电液联动等。

4.根据管线输送的介质、工作压力、工作温度确定所选阀门的壳体和内件的材料：灰铸铁、可锻铸铁、球墨铸铁、碳素钢、合金钢、不锈耐酸钢、铜合金等。

5.确定阀门的型式：闸阀、截止阀、球阀、蝶阀、节流阀、安全阀、减压阀、蒸汽疏水阀、等。

6.确定阀门的参数：对于自动阀门，根据不同需要先确定允许流阻、排放能力、背压等，再确定管道的公称通径和阀座孔的直径。

7.确定所选用阀门的几何参数：结构长度、法兰连接形式及尺寸、开启和关闭后阀门高度方向的尺寸、连接的螺栓孔尺寸和数量、整个阀门外型尺寸等。

8.利用现有的资料：阀门产品目录、阀门产品样本等选型适当的阀门产品。

二、阀门的选型依据1.所选用阀门的用途、使用工况条件和操纵控制方式。

2.工作介质的性质：工作压力、工作温度、腐蚀性能，是否含有固体颗粒，介质是否有毒，是否是易燃、易爆介质，介质的黏度等等。

3.对阀门流体特性的要求：流阻、排放能力、流量特性、密封等级等等。

4.安装尺寸和外形尺寸要求：公称通径、与管道的连接方式和连接尺寸、外形尺寸或重量限制等。

⑤对阀门产品的可靠性、使用寿命和电动装置的防爆性能等的附加要求。

（在选定参数时应注意：如果阀门要用于控制目的，必须确定如下额外参数：操作方法、最大和最小流量要求、正常流动的压力降、关闭时的压力降、阀门的最大和最小进口压力。

）根据上述选型阀门的依据和步骤，合理、正确地选型阀门时还必须对各种类型阀门的内部结构进行详细了解，以便能对优先选用的阀门做出正确的抉择。

管道的最终控制是阀门。

阀门启闭件控制着介质在管道内的流束方式，阀门流道的形状使阀门具备一定的流量特性，在选型管道系统最适合安装的阀门时必须考虑到这一点。

ALA-10高精度电子铜板带

电子铜 ALA-10
合金牌号艾荔艾国家标准美国标准日本标准
ALA-10
— C19010 —
化学成分（重量百分比）
Ni Si P Cu
0.8-1.8 0.15-0.35 0.01-0.05 余量
物理性能（室温）导电率电导率热导率热膨胀系数密度弹性模量比热容泊松比典型用途
50 29 250 16.8 8.81 127 0.377 0.34
%IACS MS/m W/(m.K) 10/K g/cm GPa J/(g.K) —
3-6
工艺性能冷加工性能切削性电镀性热镀锡性软钎焊性电阻焊
良好不适合良好良好良好一般
适用于高强度、良好的成型性同时又具有良好耐应力松弛性能和适度电导性的场合，用于电气接触部件、弹簧、连接器和引线框架等。

机械性能状态 TM03 TM04 TM06 TM08
抗拉强度(MPa) 460-520 490-560 520-580 ≥580
屈服强度(MPa) 延伸率（A11.3，%）
≥360 ≥410 ≥440 ≥540
≥12 ≥10 ≥8 ≥6
维氏硬度 135-165 145-175 150-180 170-200。

江苏省南通市如东县2024-2025学年高三上学期第一次学情调研(期初考试)化学试题(含答案)

2024~2025学年度第一次学情检测高三化学注意事项考生在答题前请认真阅读本注意事项及各题答题要求1．本试卷共7页，包含选择题（第1题-第13题，共39分），非选择题（第14题-第17题，共61分）两部分，本次考试时间为75分钟，满分100分．考试结束后，请将答题卡交回。

2．答题前，请考生务必将自己的姓名、学校、班级、座位号、考试证号用0.5毫米的黑色签字笔写在答题卡上相应的位置，并将条形码贴在指定区域。

3，选择题选出答案后，用2B 铅笔把答题卡上对应题目的答案标号涂黑，在其他位置作答一律无效，如需改动，用橡皮擦干净后，再选涂其他答案，非选择题请用0.5毫米的黑色签字笔在答题卡指定区域作答。

在试卷或草稿纸上作答一律无效。

4．如有作图需要，可用2B 铅笔作答，并请加黑加粗，描写清楚。

可能用到的相对原子质量：H-1 C-12 N-14 O-16 Na-23 Cl-35.5 Mn-55一、单项选择题：共13题，每题3分，共39分。

每题只有一个选项最符合题意。

1．材料在生产生活中起着重要作用，下列属于新型无机非金属材料的是（）A ．钢化玻璃B ．醋酸纤维C ．氮化硅陶瓷D ．聚四氟乙烯2．硫酸四氨合铜晶体（()3424Cu NH SO H O ⎡⎤⋅⎣⎦）常用作杀虫剂、媒染剂，在碱性镀铜中也常用作电镀液的主要成分。

下列叙述正确的是（）A ．3NH 的电子式为：B ．()234Cu NH +⎡⎤⎣⎦中存在离子键、配位键和极性共价键C ．3NH 分子中H N H --键的键角小于2H O 分子中H O H --键的键角D ．3NH 和2H O 与2Cu +的配位能力：32NH H O>3．实验室制取少量氯水并探究其性质。

下列实验装置和实验操作能达到实验目的的是（）A ．制取2Cl B ．制取氯水C ．处理尾气D ．测氯水的pH4．谷氨酸钠[()222HOOCCH CH CH NH COONa ]是味精的主要成分，常用作食品添加剂，具有增加食物的鲜味和香味的特性。

已知铜氨络合物各级不稳定常数为

4.1 已知铜氨络合物各级不稳定常数为K 不稳1=7.8×10-3 K 不稳2=1.4×10-3 K 不稳3=3.3×10-4 K 不稳4=7.4×10-5（1）计算各级稳定常数K 1~K 4和各级累积常数β1~β4；（2）若铜氨络合物水溶液中Cu(NH 3)2+4的浓度为Cu(NH 3)2+3的10倍，问溶液中[NH 3]是多少？（3）若铜氨络合物溶液中c (NH 3)=1.0×10-2mol ·L -1，c (Cu 2+)=1.0×10-4 mol ·L -1（忽略Cu 2+，NH 3的副反应），计算Cu 2+与各级铜氨络合物的浓度。

此时溶液中Cu(Ⅱ)的主要存在型体是什么？答案：（1）K 不1 K 不2 K 不3 K 不47.8×10-3 1.4×10-3 3.3×10-3 7.4×10-5141K K =不 231K K =不 321K K =不 411K K =不 1.4×104 3.0×1037.1×1021.3×10211K β=212K K β=3213K K K β=43214K K K K β=1.4×1044.2×1073.0×10103.9×1012（2）()[]()[][]10NH NH Cu NH Cu 34233243==++K []1243L mol 107.710NH --⋅⨯==K （3）()()14123L mol 100.1Cu L mol 100.1NH ----⋅⨯=⋅⨯=c c()()[]4433332231302][NH ]NH [NH ]NH [1Cu Cu ]Cu [βββ βc x c ++++=⋅=+ 12810674424109.3100.1100.3100.1102.4100.1104.1100.11100.1⨯⨯⨯+⨯⨯⨯+⨯⨯⨯+⨯⨯⨯+⨯=-----1944L m ol 104.1103.7100.1---⋅⨯=⨯⨯= ()[]()[]174413123L mol 109.1100.1103.7 NH Cu NH Cu ---+⋅⨯=⨯⨯⨯=⋅=βxc()[]()[]16442232223L mol 108.5100.1103.7NH Cu NH Cu ---+⋅⨯=⨯⨯⨯=⋅=βxc()[]()[]15443333233L mol 101.4100.1103.7NH Cu NH Cu ---+⋅⨯=⨯⨯⨯=⋅=βxc()[]()[]15444434243L mol 103.5100.1103.7NH Cu NH Cu ---+⋅⨯=⨯⨯⨯=⋅=βxc溶液中以Cu(NH 3)+24,Cu(NH 3)+23为主4.2 乙酰丙酮（L ）与Fe 3+络合物的lg β1~lg β3分别为11.4，22.1，26.7。

青铜中外牌号对照

(1级)
Cu-CATH-2
Cu-
CATH
KE-Cu
Cu-
CATH-2
Cu/c2
Mook
H2121
电解阴极铜
CATH
（2级）
电工用铜线锭
Cu-ETP
El-Cu58
Cu-
FRHC
Cu/a2
M1p
H2122
铜线锭
-
中国
GB
国际
ISO
欧洲
EN
德国
DIN
英国
BS
法国
NF
俄罗斯
TOCT
日本
JIS
美国
ASTM
纯铜
QZr0.2
-
-
-
-
-
-
-
-
QZr0.4
-
-
-
-
-
-
-
-
铬青铜
QCr0.5
-
-
-
CC101
-
ЪрX1
-
C18200
QCr0.5-0.2-0.1
-
-
-
-
-
-
-
-
QCr0.6-0.4-0.05
-
-
-
CC102
-
-
-
C18100
QCr1
-
-
-
CC101
-
Ър1
-
C18200
镉青铜
QCd1
-
-
CuCd1
-
-
四青铜中外新旧牌号对照
2007-10-16浏览次数：374
详细技术参术说明
技术参数名称：青铜中外新旧牌号对照

KGG 10kv GA型环网开关柜2006117131345

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