 |
 |
 |
 |
 |
 |
||
 |
 |
 |
 |
 |
| 2 | 1/1 | 返回列表 |
| 查看: 378 | 回復(fù): 1 | ||
| 本帖產(chǎn)生 1 個(gè) 翻譯EPI ，點(diǎn)擊這里進(jìn)行查看 | ||
清風(fēng)拂夢(mèng)新蟲(chóng) (小有名氣)
|
[求助]
求翻譯，謝謝，材料化學(xué)類的……
|
|
|
Calculation indicated that the compressive thermal stresses in the snorkel lining would decrease continuously after first heat. Further wear of the snorkel inner brick lining is mainly governed by steel erosion and thermal cycling of the degasser. Bricks with low creep resistance will lead to hot deformation near to hot face, and resulting in reduced hot strength and potentially open joints during cooling down. In summary, the excessive wear of the upper snorkel brick lining at the initial stage of a campaign was due to the thermal stress concentration leading to the formation of micro-cracks at the hot face, which lead to the accelerated hot erosion. Both preheating temperature and initial operational conditions have been examined for potential improvements. Preheat procedure is now closely monitored to ensure sufficient preheat of the whole snorkels to a minimum temperature of about 500°C. The delay between preheating and first heat is minimised to reduce heat loss. The first treatment starts with a gentle Ar flow and avoiding steel grade with very aggressive slag chemistry. The snorkel life is often limited by the outer castable performance. The failure of the outer castable is primarily due to thermal cracking and deskulling damages. A regular scheduled deskulling has been established to reduce the mechanical damages likely caused by heady deskulling. Coatings will be introduced to both steel shell and the anchors to reduce thermal stresses on the outer castable. 1.jpg 2.jpg |
回復(fù)此樓» 猜你喜歡
一志愿西安交通大學(xué)材料工程專業(yè) 282分求調(diào)劑
已經(jīng)有13人回復(fù)
-
北科281學(xué)碩材料求調(diào)劑
已經(jīng)有6人回復(fù)
-
328求調(diào)劑，英語(yǔ)六級(jí)551，有科研經(jīng)歷
已經(jīng)有10人回復(fù)
-
298求調(diào)劑
已經(jīng)有6人回復(fù)
-
310求調(diào)劑
已經(jīng)有4人回復(fù)
-
311求調(diào)劑
已經(jīng)有6人回復(fù)
-
307求調(diào)劑
已經(jīng)有11人回復(fù)
-
材料與化工085600，總分304，本科有兩篇sci參與，求調(diào)劑
已經(jīng)有5人回復(fù)
-
315分，誠(chéng)求調(diào)劑，材料與化工085600
已經(jīng)有3人回復(fù)
-
求調(diào)劑一志愿海大，0703化學(xué)學(xué)碩304分，有大創(chuàng)項(xiàng)目，四級(jí)已過(guò)
已經(jīng)有10人回復(fù)
wanfuping
木蟲(chóng) (小有名氣)
- 翻譯EPI: 35
- 應(yīng)助: 0 (幼兒園)
- 金幣: 2378.1
- 紅花: 3
- 帖子: 243
- 在線: 329.2小時(shí)
- 蟲(chóng)號(hào): 2050897
- 注冊(cè): 2012-10-09
- 性別: GG
- 專業(yè): 人工智能與知識(shí)工程
【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
清風(fēng)拂夢(mèng): 金幣+15, ★★★★★最佳答案, 真的很感謝你 2014-09-22 12:18:11
清風(fēng)拂夢(mèng): 金幣+5, ★★★★★最佳答案, 謝謝 2014-09-22 12:19:27
RXMCDM: 翻譯EPI+1 2014-09-22 19:27:39
清風(fēng)拂夢(mèng): 金幣+15, ★★★★★最佳答案, 真的很感謝你 2014-09-22 12:18:11
清風(fēng)拂夢(mèng): 金幣+5, ★★★★★最佳答案, 謝謝 2014-09-22 12:19:27
RXMCDM: 翻譯EPI+1 2014-09-22 19:27:39
| 計(jì)算表明，第一次加熱后，通氣管內(nèi)襯處壓縮熱應(yīng)力會(huì)持續(xù)下降。通氣管內(nèi)襯里面部分的進(jìn)一步摩損主要是因?yàn)殇摳g和脫氣器的熱循環(huán)。具有低抗蠕變性的磚塊會(huì)在加熱面附近導(dǎo)致熱變形，進(jìn)而導(dǎo)致熱強(qiáng)度減少，且在冷卻期間會(huì)潛在地產(chǎn)生間隙�？傊�，在工作的初始階段，通氣管內(nèi)襯里面部分的上端部的過(guò)度磨損是因?yàn)闊釕?yīng)力集中，導(dǎo)致在加熱面處形成微裂縫，進(jìn)而加速熱腐蝕。為了做進(jìn)一步改善，要檢驗(yàn)預(yù)熱溫度和初始工作條件。為了保證整個(gè)通氣管能足夠地預(yù)熱到最少500度，預(yù)熱步須仔細(xì)監(jiān)控。須減少由預(yù)熱和第一次加執(zhí)而導(dǎo)致的延時(shí)，來(lái)減少熱損失。第一次處理始于較溫和的氣流，從而避免鋼種產(chǎn)生劇烈的爐渣化學(xué)反應(yīng)。通氣管壽命通常取決于外面的澆注材料性能。外部澆注材料的失效主要是由于熱裂縫和脫蓋損害。為了減少因性急導(dǎo)致的機(jī)械損害，須制定一份定期的脫蓋安排計(jì)劃。為了減小外部澆注材料的熱應(yīng)力，在鋼殼和錨處都須涂層。 |
2樓2014-09-22 12:14:32
相關(guān)版塊跳轉(zhuǎn)
我要訂閱樓主 清風(fēng)拂夢(mèng) 的主題更新
| 2 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 311求調(diào)劑 +6 | 冬十三 2026-03-18 | 6/300 |
|
|---|---|---|---|---|
|
|
[考研] 307求調(diào)劑 +11 | 冷笙123 2026-03-17 | 11/550 |
|
|
[考研] 315分，誠(chéng)求調(diào)劑，材料與化工085600 +3 | 13756423260 2026-03-22 | 3/150 |
|
|
|
[考研] 287求調(diào)劑 +8 | 晨昏線與星海 2026-03-19 | 9/450 |
|
|
|
[考研] 293求調(diào)劑 +12 | zjl的號(hào) 2026-03-16 | 17/850 |
|
|
|
[考研] 324求調(diào)劑 +6 | lucky呀呀呀鴨 2026-03-20 | 6/300 |
|
|
|
[考研] 0856材料專碩353求調(diào)劑 +4 | NIFFFfff 2026-03-20 | 4/200 |
|
|
|
[考研] 280求調(diào)劑 +11 | 咕嚕曉曉 2026-03-18 | 12/600 |
|
|
|
[考研] 初試 317 +7 | 半拉月丙 2026-03-20 | 7/350 |
|
|
|
[考研] 求助 +5 | 夢(mèng)里的無(wú)言 2026-03-21 | 6/300 |
|
|
|
[考研] 279分求調(diào)劑 一志愿211 +14 | chaojifeixia 2026-03-19 | 15/750 |
|
|
|
[考研] 085700資源與環(huán)境308求調(diào)劑 +12 | 墨墨漠 2026-03-18 | 13/650 |
|
|
|
[考研] 294求調(diào)劑材料與化工專碩 +15 | 陌の森林 2026-03-18 | 15/750 |
|
|
|
[考研] 一志愿西安交通大學(xué) 學(xué)碩 354求調(diào)劑211或者雙一流 +3 | 我想要讀研究生 2026-03-20 | 3/150 |
|
|
|
[考研] 材料與化工求調(diào)劑 +7 | 為學(xué)666 2026-03-16 | 7/350 |
|
|
|
[考研] 0703化學(xué)調(diào)劑 +5 | pupcoco 2026-03-17 | 8/400 |
|
|
|
[考研] 301求調(diào)劑 +4 | A_JiXing 2026-03-16 | 4/200 |
|
|
|
[考研] 085601求調(diào)劑 +4 | Du.11 2026-03-16 | 4/200 |
|
|
|
[考研] 275求調(diào)劑 +4 | 太陽(yáng)花天天開(kāi)心 2026-03-16 | 4/200 |
|
|
|
[考研] 070300化學(xué)學(xué)碩求調(diào)劑 +6 | 太想進(jìn)步了0608 2026-03-16 | 6/300 |
|