Development of a new cored wire based on silica manganese gas-cleaning dust

نویسندگان

چکیده

The paper describes the possibility of using cored wire for wear­resistant hardfacing containing waste (dust gas­cleaners) from production silica manganese and aluminum. Hardfacing was carried out a submerged welding tractor made slag produced by West Siberian Electrometallurgical Plant. wear rate on samples determined 2070 CMT­1 machine. method it is based change in sample mass during disc – pad test. Chemical composition deposited metal X­ray fluorescence XRF­1800 spectrometer atomic emission DFS­71 spectrometer. hardness layers measured METH­DO tester. Evaluation quantity nonmetallic inclusions according to GOST 1778 70 an OLYMPUS GX­51 optical microscope. coefficient recovery found at different ratios components. This associated with reduction oxide manganese­containing flux (due carbon contained wire). With significant excess flux, exceeds 100 %. process filling wire, amount carbon­containing material charge, content electric­arc coating itself. contains non­deformable silicates point oxides. Contamination small. presence these non­metallic does not significantly affect operational characteristics layer.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Emission of dust and gases in tubular cored wire welding of steel.

The emission of dusts and gases, which are generated during tubular cored wire welding and which are hazardous to health and the environment, were studied. Tests included various kinds of tubular electrode wires used for welding steel, that is, rutile flux cored wires, basic flux cored wires, and metal cored wires for welding unalloyed, low-alloy, and high-alloy steels as well as self-shielded ...

متن کامل

effect of oral presentation on development of l2 learners grammar

this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...

15 صفحه اول

task-based language teaching in iran: a mixed study through constructing and validating a new questionnaire based on theoretical, sociocultural, and educational frameworks

جنبه های گوناگونی از زندگی در ایران را از جمله سبک زندگی، علم و امکانات فنی و تکنولوژیکی می توان کم یا بیش وارداتی در نظر گرفت. زبان انگلیسی و روش تدریس آن نیز از این قاعده مثتسنی نیست. با این حال گاهی سوال پیش می آید که آیا یک روش خاص با زیر ساخت های نظری، فرهنگی اجتماعی و آموزشی جامعه ایرانی سازگاری دارد یا خیر. این تحقیق بر اساس روش های ترکیبی انجام شده است.پرسش نامه ای نیز برای زبان آموزان ...

fabrication of new ion sensitive field effect transistors (isfet) based on modification of junction-fet for analysis of hydronium, potassium and hydrazinium ions

a novel and ultra low cost isfet electrode and measurement system was designed for isfet application and detection of hydronium, hydrazinium and potassium ions. also, a measuring setup containing appropriate circuits, suitable analyzer (advantech board), de noise reduction elements, cooling system and pc was used for controlling the isfet electrode and various characteristic measurements. the t...

A comparative study of the cleaning effect of various ultrasonic cleaners on ‎new, unused endodontic instruments

BACKGROUND AND AIM: This study was carried out to compare three different ultrasonic cleaner devices in the cleaning process of endodontic instruments by scanning electron microscope (SEM). METHODS: In this study, 120 unused brand new hand and rotary instruments were examined after removing from the sealed package. The instruments were randomly divided into six groups of 20 rotary or hand files...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: ???????? ?????? ??????? ?????????. ?????? ???????????

سال: 2022

ISSN: ['0368-0797', '2410-2091']

DOI: https://doi.org/10.17073/0368-0797-2021-12-863-869