碳强度英语

30CrMnSiA读三零铬锰硅A。

30CrMnSiA合金结构钢

详细描述：

化学成分

质量分数（%）：

C：0.27～0.34

Si：0.90～1.20

Mn：0.80～1.10

Cr：0.80～1.10

力学性能

试样毛坯尺寸25mm

热处理：

淬火加热温度（℃）：880；冷却剂：油

回火加热温度（℃）：520；冷却剂：水、油

力学性能：

抗拉强度（σb/MPa）：≧1080

屈服点（σs/MPa）：≧885

断后伸长率（δ5/%）：≧10

断面收缩率（ψ/%）：≧45

冲击吸收功（Aku2/J）：≧39

布氏硬度（HBS100/3000）（退火或高温回火状态）：≦229

greenhouse gas（温室气体）emissions of carbon dioxide（二氧化碳排放）climate change（气候变化）global warming（全球变暖）carbon capture and storage（碳捕获和存储）碳减排 carbon emission reductiongreenhouse gas emission（温室气体排放）energy demand（能源需求）energy consumption（能耗）污水治理 sewage treatment“工业污水”industrial sewageSewage做“污水”更侧重指“下水道、排水沟排出的固体、液体废物”可再生能源 renewable energy“biofuel”就是时下颇为热门的“生物燃料”low-carbon economy（低碳经济）和circular economy（循环经济）sustainable development（可持续发展）green technology（绿色科技）environment-friendly technology（环保技术）carbon dioxide emission（二氧化碳排放量）bio-energy（生物能源）nuclear power（核能）eco-city（生态城市）可燃冰 flammable ice自然保护区 nature reserve无车日 car-free dayCopenhagen Jargon 哥本哈根气候大会专用语Adaptation 适应机制Adaptation is the term used to refer to the preparations countries will have to make to deal with climate change.They includes measures such as protecting coastal areas by building sea walls, reforestation to try to prevent flooding, increasing water conservation and changing crops to varieties that flourish in warmer climatesAnnex 1 附件一国家The world's 37 richest countries, whose prosperity has been built on emitting carbon, as opposed to non-Annex 1, roughly categorised as blameless victimsCCS 碳捕获和封存Carbon Capture and Storage technologyCDM 清洁发展机制Clean Development Mechanism which enables wealthy countries to offset their emissions by funding pollution-cutting measures in the developing worldCOP15 第15次缔约方大会The official name of the Copenhagen climate change summit — the 15th Conference of the PartiesCVF/V11Climate Vulnerable Forum, the 11 nations most vulnerable to climate change, including Bangladesh and the Maldives.IPCC 联合国政府间气候变化专门委员会Intergovernmental Panel on Climate Change, the all-important scientific body that advises the UN's climate negotiationsLDCF -最不发达国家基金Least Developed Countries Fund, established to finance climate change intiatives in poorer countriesMEF 经济大国能源和气候论坛Major Economies' Forum, launched by President Barack Obama to help generate the politcal leadership necessary to achieve a successful outcome in Copenhagen.UNFCCC 联合国气候变化框架公约The UN Framework Convention on Climate Change, a standing convention of officials and diplomats haggling over every comma of the final negotiating text.Things we are talking about:Carbon budgets 碳预算Carbon tax 碳税Carbon footprint 碳足迹A carbon footprint is the total amount of greenhouse gases produced to directly and indirectly support human activities, usually expressed in equivalent tons of carbon dioxide (CO2).Carbon intensity 碳强度Low-carbon technology 低碳技术Low-carbon development/growth 低碳发展Low-carbon lifestyle 低碳生活方式Switch to a "low-carbon economy" 发展“低碳经济”Carbon intensive goods 碳密集产品What we need:污水治理 sewage treatment生态旅游 ecotourism无车日 car-free dayLow-carbon alternatives：可再生能源 renewable energy绿色“生物燃料” biofuel馏出燃料 Distillate fuel地热 ground-source heat液化天然气 liquefied natural gas可燃冰 flammable iceGeo-engineering 地球工程：Geo-engineering methods are ways of artificially cooling the planet and offset the effects of climate changeThe simplest of these is to plant forests but “artificial trees” are also being developed to suck up carbon. Other methods include launching giant mirrors into space to reflect back sunlight. There are also ongoing experiments in creating clouds by spraying sea water in the air and storing carbon dioxide underground.What we are facing:Plight 困境Bad carbon scenario 令人忧心的碳排放状况A climate debt 亏欠地球、亏欠大自然的重债Ship hazards 漂浮的冰山造成的威胁What all these mean to us:A wake-up call 警钟已经响起，环保迫在眉睫

30CrMnSiA是合金钢材料，读作 三零铬锰硅A

30CrMnSiA简介：

30CrMnSiA属中碳，强度高，焊接性能较差。30CrMnSiA调质后有很高的强度和足够的韧性，淬透性也好。调质后该材料做砂轮轴，齿轮，链轮都可以。30CrMnSiA具有良好的加工性，加工变形微小，抗疲劳性能相当好。用于轴类、活塞类零配件等。用于汽车、飞机各种特殊耐磨零配件等。

30CrMnSiA标准：

GB/T 3077-1988

30CrMnSiA化学成分：

碳 C ：0.28～0.34

硅 Si：0.90～1.20

锰 Mn：0.80～1.10

硫 S ：允许残余含量≤0.025

磷 P ：允许残余含量≤0.025

铬 Cr：0.80～1.10

镍 Ni：允许残余含量≤0.030

铜 Cu：允许残余含量≤0.025

30CrMnSiA力学性能：

抗拉强度σb (MPa)：≥1080(110)

屈服强度σs (MPa)：≥835(85)

伸长率 δ5 (%)：≥10

断面收缩率ψ (%)：≥45

冲击功 Akv (J)：≥39

冲击韧性值αkv (J/cm²)：≥49(5)

硬度 ：≤229HB

试样尺寸：试样毛坯尺寸为25mm

30CrMnSiA热处理规范及金相组织：

热处理规范：淬火880℃，油冷；回火540℃，水冷、油冷。

30CrMnSiA交货状态：

以热处理（正火、退火或高温回火）或不热处理状态交货，交货状态应在合同中注明。

它强度高,但属中碳调质钢,具有较大的淬透性,因此焊接性能很差。

该材料调质后有很高的强度和足够的韧性，淬透性也好。调质后该材料做砂轮轴，齿轮，链轮都可以。 如果做刀具，粗加工成为刀具形状。调质处理。用硬质合金铣刀铣削刀刃，抛光机抛光。表面粗糙度达到3.2应该没有问题。

30CrMnSiA主要规格：

30CrMnSiA圆棒 30CrMnSiA板

30CrMnSiA属高强度调质结构钢，读“三零铬锰硅”执行标准：GB/T 3077-1999

30CrMnSiA钢板执行标准：GB3531-2014

30CrMnSiA执行标准；国标GB/T11251-2009

30CrMnSiA执行标准：舞阳钢厂国防国军标准GJB2150A-2005

30CrMnSiA中碳，强度高，焊接性能较差。30CrMnSiA调质后有很高的强度和足够的韧性，淬透性也好。调质后该材料做砂轮轴，齿轮，链轮都可以。30CrMnSiA具有良好的加工性，加工变形微小，抗疲劳性能相当好。用于轴类、活塞类零配件等。用于汽车、飞机各种特殊耐磨零配件等。

30CrMnSiA合金钢特性与应用：30CrMnSiA高强度调质结构钢，具有很高的强度和韧性，淬 透性较高，冷变形塑性中等，切削加工性能良好， 有回火脆性倾向，横向的冲击韧度差，焊接性能较 好，但厚度大于3mm时，先预热到150℃ ,焊后热 处理，一般调质后使用 多用于制造高负载，、高速的各种重要零件，如齿轮、轴、离合器、链轮、砂轮轴、轴套、螺栓、螺母等，也用于制造耐磨、工作温度不高的零件、变载荷的焊接构件，如高压鼓风机的叶片、阀板以及非腐蚀管道用管。

30CrMnSiA化学成分如下图：