国产黄色精品-国产黄色毛片-国产黄色免费电影-国产黄色片三级-国产黄色片在线观看-国产黄色三级三级三级

Suzhou Tengkai Metal Materials Co., Ltd.

KEYWORD：

Vacuume furnace Vacuum quenching furnace Vacuum quenching furnace

Search product：

Heat treatmen equipment

The mesh belt bright furnace

Well type nitride furnace

Vacuum quenching furnace

Vacuum quenching furnace

Workshop show

TENG KAI

ABOUT US

Suzhou Tengkai Metal Materials Co., Ltd. is a professional heat treatment adding manufacturer, established in 2008. There are currently over 40 employees, 7 technical personnel and 5 inspectors. The company has corresponding professional testing and R&D department……

Company Profile

Service Commitment

News

WHAT'S
NEW

Company activity

Company News

Industry Information

Vacuum Heat Treatment Process of Bearing Steel

The full name of bearing steel is rolling bearing steel, which has high compressive strength and fatigue limit, high hardness, high wear resistance and certain toughness, good hardenability, and stric

View details >>

Classification of stainless steel

The number of types of stainless steel depends on which classification method is used, such as based on chemical composition or functional characteristics, or metallographic structure or heat treatmen

View details >>

What is secondary austenitization in heat treatment？

The two-phase structure in duplex stainless steel changes with the increase of heating temperature. When the temperature exceeds 1300 ℃, some duplex stainless steels may have a ferrite structure. When

View details >>

How to Second Quench Stainless Steel？

How can stainless steel (iron) provide hardness and how to increase the hardness to a higher level? The secondary quenching process can be used. Stainless steel (such as 30Cr13 steel), using seconda

View details >>

What is the difference between air tempering and vacuum tempering?

1. Vacuum annealing furnace is mainly suitable for continuous bright annealing, solid solution, demagnetization, and stainless steel quenching treatment of stainless steel products such as heating equ

View details >>

Common heat treatment process concepts

1. Normalizing: A heat treatment process that heats steel or steel components to an appropriate temperature above the critical point AC3 or ACM and maintains it for a certain period of time before coo

View details >>

Surface treatment process of stainless steel with black and gray technology

1、 Technical concept: QPQ "is the abbreviation for" Quench P0lish Quench "in English. The original meaning is quenching, polishing, and quenching. After salt bath composite treatment, in order to re

View details >>

Incomplete quenching heat treatment processing

Incomplete quenching refers to the heat treatment process of heating hypereutectoid (and eutectoid) steel to a temperature between Ac1 and Acm, followed by rapid cooling after insulation (see Figure 2

View details >>

Incomplete quenching heat treatment processing

Incomplete quenching refers to the heat treatment process of heating hypereutectoid (and eutectoid) steel to a temperature between Ac1 and Acm, followed by rapid cooling after insulation (see Figure 2

Classification of stainless steel

The number of types of stainless steel depends on which classification method is used, such as based on chemical composition or functional characteristics, or metallographic structure or heat treatmen

What is secondary austenitization in heat treatment？

The two-phase structure in duplex stainless steel changes with the increase of heating temperature. When the temperature exceeds 1300 ℃, some duplex stainless steels may have a ferrite structure. When

Get in touch with us

Nice to receive your email, we will reply to you soon

Scan Code Contact

Copyright ? Suzhou Tengkai Metal Materials Co., Ltd. Filing number:蘇ICP備16047948號-1 Technical support: 尚云網絡

?

主站蜘蛛池模板： 18禁美女黄网站色大片免费观 | 粗大的内捧猛烈进出在线视 | 91国内外精品自在线播放 | 亚洲成人毛茸茸bbxx | 国产成人精品无码一区二区 | 国产成人精品综合在线 | 国产毛a片久久久久久无码国产毛A片久久久久无码 | 波多野结衣爱爱视频 | 日本三日本三级香港三级 | 成人午夜天 | 亚洲熟妇色xxxxx亚洲 | 99久久精品日本一区二区免费 | 91嫩草国产线免费观看 | 国产一区二区女人在线喷水 | 国产福利一区二区三区高清 | 波多野结衣av一区二区三区中文 | 少妇人妻偷人精品一区二区 | 黄色一级片免费在线观看 | 日本老熟五十路息孑安野由美 | 黑巨人精品一区二区三区 | 成人免费一区二区三区视频软件 | 欧美成人免费A片爽爽爽 | 国产又粗又猛又黄又爽A片国产又粗又猛又爽的视频A片 | 一本大道一卡二卡入口2021 | 国产91小视频 | 国产精品一区2区三区内射国产精品一区AV在线播放 | 欧美一级做影片爱橙影院 | 五月天婷婷在线观看 | 久久久久久中文字幕 | xxxx一区亚洲欧美日韩一区二区三区 | 成人欧美视频在线观看播放 | 国产成人精品三级麻豆 | 亚洲自拍另类制服在线 | 国产一区在线观看免费 | 18禁黄网站无码 | 精品国产人妻一区二区三区 | 国产女主播真实视频在线观看 | 丰满少妇呻吟高潮经历 | 国产综合在线播放 | 久久五月丁香激情综合 | 久久精品国产亚洲一区二区 |