感应热处理 发表于 2013-1-14 20:10:33

wya-8 发表于 2013-1-13 20:45 static/image/common/back.gif
Thank you for answer.
Yes, this is the 2nd chapter " absorption and diffusion of carbon ", in which ...

当然,我只是小叶不见,只看太山,斯弥嘛神。

wya-8 发表于 2013-1-13 20:45:30

Thank you for answer.
Yes, this is the 2nd chapter " absorption and diffusion of carbon ", in which there is a section of carbon diffusion in steel. But this figure only shows the carbon dioxide content of the atmosphere required to develop specific surface carbon levels at different carburizing time.

dqy 发表于 2013-1-13 18:50:52

王工:我的理解如下
仅供参考:

20小时后, 渗碳才达到平衡;
二氧化碳的含量决定了不同时间后,表面含碳量;
虚线 指出了获得单一表面含碳量不同的二氧化碳含碳量和时间组合的方法。

感应热处理 发表于 2013-1-13 19:27:32

wya-8 发表于 2013-1-13 17:59 static/image/common/back.gif
There is no diffusion the word.

看见你的页眉了吗,那是什么?

感应热处理 发表于 2013-1-13 17:06:19

讲的是吸收和扩散。:lol

wya-8 发表于 2013-1-13 17:59:15

郑纺院热811 发表于 2013-1-13 17:06 static/image/common/back.gif
讲的是吸收和扩散。

There is no diffusion the word.

我爱大自然 发表于 2013-1-13 16:48:32

carbon dioxide content of the atmosphere required to develop specific surface carbon levels at different carburizing times underone set of gas-carburizing conditions.Dashed lines indicate the way to determine alternative combinations of treatment time and carbon dioxide content for a single value of surface carbon content.

图2-5是描述:在一系列渗碳条件下、经过不同的渗碳时间,为了获得一定的表面含碳量,气氛中所需的二氧化碳的含量。

虚线给出了单变量(特定表面碳含量的要求)下,可能的气氛二氧化碳含量和渗碳时间组合。

没看懂,左侧坐标轴是表面碳含量,右侧坐标轴是碳势,横坐标是渗碳时间,倾斜直线是非均衡态,水平线是均衡态。

先从左侧坐标轴画一条横线,横线上选定任一点,点的纵坐标是时间,从这一点倾斜向上与时间=20h相交,然后水平折线,确定碳势。这些时间和碳势组合对应左侧坐标轴相同的表面含碳量?。。。。。

wya-8 发表于 2013-1-12 20:47:25

The data shown in figure, would you explain and transate them?


The data shown in figure, can you tell me to explain and translate them, will you? thanks.

wya-8 发表于 2013-1-12 20:51:04

First of all, I answer to this question, please correct the errors, if any.


Only after 20 h of carburizing one surface carbon content corresponding to one carbon dioxide content , 20 h of carburizing ago one surface carbon content corresponding to different carburizing time and different carbon dioxide content.

      
Data are plotted for low-carbon steel carburized at 925C(1700F) in an atmosphere of endothermic carrier gas enriched with propane. Under these conditions, equilibrium was reached only after 20h of carburizing .

在丙烷为富化剂的吸热式气氛中低碳钢925C(1700F)渗碳绘制的数据。在这些条件下只有经过20小时渗碳后表面含碳量与气氛CO2含量达到平衡。


carbon dioxide content of the atmosphere required to develop specific surface carbon levels at different carburizing times underone set of gas-carburizing conditions.Dashed lines indicate the way to determine alternative combinations of treatment time and carbon dioxide content for a single value of surface carbon content.

在一组气体渗碳条件下 不同的渗碳时间 气氛CO2含量需要制定 明确的表面含碳量。虚线
表示以不同数量组合处理时间和二氧化碳含量,来确定表面含碳量单一值的方法。
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