1) argon protection pouring
氩气保护浇注
1.
The argon protection pouring method was adopted by filling argon to the cavity, by which the clear casting characters can be obtained.
介绍了结构简单、质量要求高、出口美国低合金铝锭模的铸造工艺,采取型腔充氩气保护浇注的办法,获得清晰的铸字,对类似铸件的生产有一定的参考价值。
2) argon shield
氩气保护
1.
A self-made vacuum melting and argon shield continuous unidirectional solidification equipment was used to produce copper tube with continuous columnar structure.
采用自行研制的真空熔炼、氩气保护连续定向凝固设备制备出具有连续柱状晶组织的铜管铸坯,分析了铜管铸坯生产中熔体温度、连铸速度、冷却水量,结晶器等对其的影响。
2.
Continuous unidirectional solidification equipment under conditions of vacuum melting and argon shield is designed and made on the basis of original traditional continuous unidirectional solidification equipment and vacuum system.
真空熔化氩气保护连续定向凝固设备,是在原有的常规连续定向凝固设备的基础上,加上真空系统而设计制造出来的。
4) protective casting
保护浇注
1.
The measures of controlling aim carbon content and pre-deoxidation,consolidating refining deoxida- tion and light blow after steel tapping,protective casting,etc.
通过采用控制出钢终点碳和预脱氧,加强精炼脱氧和出钢软吹,做好保护浇注等措施,降低了钢中氧含量。
2.
The Special Steel Plant successfully developed 37Mn steel for Class J55 oil well pipes on its first test,by adopting the measures such as the use of EAR-LF-CC process flow to set down reasonable technical measures,strictly controlling aim carbon content,preliminary elimination of oxygen,adjustment of refining slag and protective casting.
特殊钢厂采用EAF-LF-CC工艺路线研制,通过制定合理技术措施,严格控制钢终点碳、预脱氧,调整精炼炉渣、连铸保护浇注等措施,一次成功开发了J55级油井管用37Mn5钢。
3.
The high quality 37Mn5 tubular billet for oil well pipe has been developed and produced in Laigang by the following short flow process: UHP EAF smelting-LF refining-continuous casting – hot charging – rolling,in which some process measures such as prepared burden,strengthening deoxidation,protective casting and so on have been adopted.
莱钢采用UHP电炉冶炼-LF精炼-连铸-热送-轧制短流程工艺路线开发生产J55级37Mn5油井管坯钢,采取了精料、精炼强化脱氧、连铸保护浇注等工艺措施,使生产出的产品成分均匀、残余元素含量低、氧含量低、夹杂物少、晶粒细小,满足了石油工业对高质量油井管的要求。
5) Shielding Argon Gas Casting
氩封保护浇铸
6) argon shrouding
氩气保护罩
1.
Through investigating the oxidation behavior of metallic particles during atmosphericplasma spray process and their effect on coating microstructure with iron particles andNiCoCrAlY particles, a argon shrouding was developed which can decrease theoxidation of particles during atmospheric plasma spray process.
进而研制了能减少大气等离子喷涂过程中粒子氧化的氩气保护罩。
补充资料：氩39-氩40法测年
分子式：
CAS号：
性质：将含钾样品放入核反应堆中接受快中子照射，40K核被打进一个中子，而后放出一个质子，形成39Ar，用质谱计测定被照射样品的40Ar/39Ar比值，代替常规钾-氩法中40Ar/40K比值，从而计算出样品年龄的方法，计算公式如下：t=λ-1ln(1+J•40Ar/39Ar)。式中J=39Ar/40Ar•λ/λkΔT∫φ(ε)σ(ε)dε是样品照射持续的时间，Ф(ε)是能量为ε时的中子通量，σ(ε)为39K(n，p)39Ar的反应截面，实验中用一已知年龄(ts)的标准与待测样品一块进行辐照，由下式求得J值：J=(eλt-1)/(40Ar/39Ar)。此方法解决了过去钾、氩分别由不同方法测定所产生的不同误差使年龄精度较低的弊端；同时由于照射后样品氩的释放可采用阶段加温方法，对一个样品便可获得一系列的表面年龄，最终得到代表矿物或岩石结晶的稳定坪年龄；或由等时线法处理得到样品的年龄、认识外来氩的混入状况。
CAS号：
性质：将含钾样品放入核反应堆中接受快中子照射，40K核被打进一个中子，而后放出一个质子，形成39Ar，用质谱计测定被照射样品的40Ar/39Ar比值，代替常规钾-氩法中40Ar/40K比值，从而计算出样品年龄的方法，计算公式如下：t=λ-1ln(1+J•40Ar/39Ar)。式中J=39Ar/40Ar•λ/λkΔT∫φ(ε)σ(ε)dε是样品照射持续的时间，Ф(ε)是能量为ε时的中子通量，σ(ε)为39K(n，p)39Ar的反应截面，实验中用一已知年龄(ts)的标准与待测样品一块进行辐照，由下式求得J值：J=(eλt-1)/(40Ar/39Ar)。此方法解决了过去钾、氩分别由不同方法测定所产生的不同误差使年龄精度较低的弊端；同时由于照射后样品氩的释放可采用阶段加温方法，对一个样品便可获得一系列的表面年龄，最终得到代表矿物或岩石结晶的稳定坪年龄；或由等时线法处理得到样品的年龄、认识外来氩的混入状况。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条