The heat treatment technology of carbo- nitriding of steel has the characteristic of lower treatment temperature and direct quenching.

鋼的碳氮共滲熱處理工藝具有共滲溫度低老熟妇BBWXXXXXTV、直接淬火等特點尹人综合日本在线www官网。

As a result of the coaction of abovementioned factors, the bainite has superior secondary hardening effect, thermal strength and structural stability to martensite formed by straight tempering.

以上諸因素的共同作用，使貝氏體具有比直接淬火所獲得的馬氏體更高的二次硬化效應最新无码专区视频在线观看、熱強性和組織穩(wěn)定性Carib在线观看。

The authors commenced the article from actual production, did some theory analysis contrapose the break of plate in hardening process.

從實際生產(chǎn)出發(fā)，對鏈板淬火開裂問題做了理論分析欧美一级纯片免费观看一区二区。

The result shows that the deformation tendency of dentiform is from curved to straight due to the tensile stress, and the tensile stress is mainly generated during the heating and quenching stages in the heat treatment.

結(jié)果表明：在拉應力的作用下殴美性爱网，齒形變化的方式是由彎變直；拉應力主要產(chǎn)生在最終熱處理時的加熱和淬火冷卻階段99精品久久久久久久。

TTT curves were determined by dilatometric testing and test specimens of these steels were austempered.

用熱膨脹試驗測定了TTT曲線国极品馒头一线天自慰，各組試驗用鋼的試樣都進行了等溫淬火。

DSC and dilatometry were carried out to determine the phase transformation temperature of a high speed steel used for centrifugal cast rolls.

采用差式掃描量熱法及熱膨脹法測定了離心鑄造軋輥用高速鋼的相變點www久，根據(jù)高速鋼的臨界轉(zhuǎn)變溫度欧美日韩啊v在，進行了退火、淬火和回火實驗人成免费变态网站网址。

If the center shaft tray is quenched and ground, the dismountable inner ring can be cancelled.

如果心軸的滾道是經(jīng)過淬火并磨削加工制成BBBBBXXXXX欧洲熟妇，則可以拆卸的內(nèi)圈就可以取消。

Ceramic, YG8, YT15, 45# steel, 45# chilled steel, cast iron (HT15-33) and polyurethane plastic nozzles all exhibited plowing type of material remove mode under the condition of umber emery, white emery and SiC erodent impacting.

YG8和YT15硬質(zhì)合金黄网站直接观看、75瓷九九黄色视频、在线观看、鑄鐵（HT15-33）、45#淬火鋼A一级特黄大片强奷全过程、45#鋼和聚氨脂塑料噴砂嘴的磨損機制皆以微切削為主3WWW日本视频。

The attackers use the night-time window to install backdoors on the systems that are still present after the systems are hardened and are used for exfiltration of sensitive data from compromised systems and from other systems connected to it.

攻擊者就是利用相差一晚的時間窗，在新系統(tǒng)上安裝后門；這些后門即使該系統(tǒng)已經(jīng)淬火后才存在99九九精品免费视频观看，且會從受害系統(tǒng)一级a爱做片无码免费手机在线、以及與受害系統(tǒng)相聯(lián)的系統(tǒng)上抽取敏感數(shù)據(jù)。

In Chapter 2, the principles and processes of steady-state oxygen permeation measurement and double iodometric titration are described.

第二章 詳細介紹了本論文中所采用的實驗方法和設備高h视频一区，包括穩(wěn)態(tài)氧滲透測量法久久午夜精品A级毛片、雙碘滴定法測量氧非化學計量、氣氛淬火等久久国产精品免费专区A片。