English
全部
图片
视频
地图
资讯
购物
更多
航班
旅游
酒店
搜索
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
时间不限
过去 1 小时
过去 24 小时
过去 7 天
过去 30 天
按相关度排序
按时间排序
26 天
大连大山结晶器获专利,革新铜模设计提升铸造质量
专利摘要指出,外表面阶梯型结晶器铜模装置的设计具有彻底的创新性。它的铜模设计包含至少三个分段,并且随着分段的降低,其外廓尺寸逐步递减。这种设计使得当铜模与水套相配合时,能够形成由上至下逐渐增加的水缝,促使冷却水从底部向上流动时流速逐渐增加。这一设计能够有效提高高热负荷分段的冷却换热效率,避免坯壳在低热负荷区域发生过分冷却的问题。
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
今日热点
Inflation cooled last month
Plane passenger charged
Wisconsin clerk suspended
Kuwait releases US prisoners
20 charged in prison brawl
Judge halts Trump order
Former NBA center dies
Cargo ship captain arrested
Won't seek reelection
OR gun law is constitutional
Can make children sick?
Ends Biden climate grants
Montana ski lift accident
AK volcano eruption 'likely'
Intel appoints new CEO
O’Hare Airport shooting
Ex-TN lawmaker pardoned
Ordered to pay $25 million
Meta faces AI lawsuit
Woman pleads not guilty
Person of interest identified
EU to impose counter tariffs
SpaceX delays ISS mission
Partial face fossil found
Man found with live turtle
FTC seeks to delay trial
Schumer on funding bill
Parole board hearings set
Weinstein appears in court
Greenland elections
US toughens visiting rules
Evacuation warnings issued
Offers buyouts to staff
Paid $10B in royalties?
反馈