The manganese content of the pulp as a factor in the ageing of the soda cellulose

1976 ◽  
Vol 7 (6) ◽  
pp. 643-645
Author(s):  
E. M. Konovalova ◽  
D. I. Mandel'baum ◽  
L. I. Novikova ◽  
V. S. Kuleshova ◽  
G. I. Novikova
Keyword(s):  
Manganese Content ◽  
Soda Cellulose

Influence of technology parameters of free-cutting steel continuous casting on the billet internal structure

2020 ◽  
Vol 76 (2) ◽  
pp. 139-142
Author(s):  
A. T. Kunakbaeva ◽  
A. M. Stolyarov ◽  
M. V. Potapova
Keyword(s):  
Regression Analysis ◽  
Continuous Casting ◽  
Internal Structure ◽  
Sulfur Content ◽  
Manganese Content ◽  
High Quality ◽  
Correlation And Regression Analysis ◽  
Cutting Steel ◽  
Continuously Cast

Free-cutting steel gains specific working properties thanks to the high content of sulfur and phosphorus. These elements, especially sulfur, have a rather high tendency to segregation. Therefore, segregation defects in free-cutting steel continuously cast billets can be significantly developed. The aim of the work was to study the influence of the chemical composition of freecutting steel and casting technological parameters on the quality of the macrostructure of continuously cast billets. A metallographic assessment of the internal structure of cast metal made of free-cutting steel and data processing by application of correlation and regression analysis were the research methods. The array of production data of 43 heats of free-cutting steel of grade A12 was studied. Steel casting on a five-strand radial type continuous casting machine was carried out by various methods of metal pouring from tundish into the molds. Metal of 19 heats was poured with an open stream, and 24 heats – by a closed stream through submerged nozzles with a vertical hole. High-quality billets had a cross-sectional size of 150×150 mm. The macrostructure of high-quality square billets made of free-cutting steel of A12 grade is characterized by the presence of central porosity, axial segregation and peripheral point contamination, the degree of development of which was in the range from 1.5 to 2.0 points, segregation cracks and strips – about 1.0 points. In the course of casting with an open stream, almost all of these defects are more developed comparing with the casting by a closed stream. As a result of correlation and regression analysis, linear dependences of the development degree of segregation cracks and strips both axial and angular on the sulfur content in steel and on the ratio of manganese content to sulfur content were established. The degree of these defects development increases with growing of sulfur content in steel of A12 grade. These defects had especially strong development when sulfur content in steel was of more than 0.10%. To improve the quality of cast metal, it is necessary to have the ratio of the manganese content to the sulfur content in the metal more than eight.

UNS G10210

Alloy Digest ◽  
1988 ◽  
Vol 37 (9) ◽  
Keyword(s):  
Fracture Toughness ◽  
Carbon Steel ◽  
Manganese Content ◽  
Heat Treating ◽  
Carbon Steels ◽  
High Manganese ◽  
Steel Mills ◽  
Cold Worked ◽  
Good Workability ◽  
High Manganese Content

Abstract UNS G10210 is a carbon steel of relatively high manganese content which increases hardenability and hardness over that of carbon steels of lower manganese. It combines good machinability, good workability (hot or cold) and good weldability. It is used in the annealed, hot-worked, normalized, cold-worked or water-quenched-and-tempered condition for many applications. It may be used in uncarburized applications and for components case-hardened by carburizing. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: CS-122. Producer or source: Carbon steel mills.

SAE 1039

Alloy Digest ◽  
1977 ◽  
Vol 26 (2) ◽  
Keyword(s):  
Fracture Toughness ◽  
Low Cost ◽  
Manganese Content ◽  
Heat Treating ◽  
General Purpose ◽  
Carbon Steels ◽  
The Other ◽  
Steel Mills ◽  
Medium Strength ◽  
Hot Rolled

Abstract SAF 1039 steel can be used in the hot-rolled, normalized, oil-quenched-and-tempered or water-quenched-and-tempered condition for general-purpose construction and engineering. Its manganese content is a little higher than some of the other standard carbon steels with comparable carbon levels; this gives it slightly higher hardenability and hardness. It provides medium strength and toughness at low cost. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: CS-66. Producer or source: Carbon steel mills.

AISI 1018

Alloy Digest ◽  
1975 ◽  
Vol 24 (3) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Carbon Steel ◽  
Manganese Content ◽  
Heat Treating ◽  
High Manganese ◽  
The Core ◽  
Steel Mills ◽  
Good Workability ◽  
High Manganese Content

Abstract AISI 1018 is a carbon steel with a relatively high manganese content (0.60-0.90%) which provides increased hardenability in all applications and increased hardness and strength in the core of carburized parts and in uncarburized uses. AISI 1018 combines good machinability, good workability and good weldability. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: CS-56. Producer or source: Carbon steel mills.

CLIMAX 6Mn-1Mo Alloy

Alloy Digest ◽  
1976 ◽  
Vol 25 (4) ◽  
Keyword(s):  
Wear Resistance ◽  
Manganese Content ◽  
Heat Treating ◽  
Manganese Steel ◽  
Hadfield Steel ◽  
Austenitic Manganese Steel ◽  
Austenitic Manganese ◽  
The Many ◽  
Cast Condition ◽  
Lower Carbon

Abstract Climax 6Mn-1Mo alloy is a lean austenitic manganese steel which develops a structure similar to that of the well-known Hadfield manganese steel after heat treatment. A lower carbon version of this alloy has been developed to give satisfactory performance in the as-cast condition. Largely because of lower manganese content, these alloys have better abrasion resistance but lower toughness and ductility than Hadfield steel. Both alloys are designed for the many applications where a combination of good wear resistance and moderate toughness is desirable. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on wear resistance as well as casting, heat treating, machining, joining, and surface treatment. Filing Code: SA-322. Producer or source: Climax Molybdenum Company, A Division of Amax Inc..

KISKI

Alloy Digest ◽  
1962 ◽  
Vol 11 (11) ◽  
Keyword(s):  
Physical Properties ◽  
Abrasion Resistance ◽  
Manganese Content ◽  
Heat Treating ◽  
Good Combination ◽  
High Manganese ◽  
High Hardenability ◽  
Die Steel ◽  
Steel Industries ◽  
High Manganese Content

Abstract KISKI is a non-deforming, oil-hardening tool and die steel of high manganese content. It has good combination of toughness, high hardenability, wear and abrasion resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-126. Producer or source: Continental Copper & Steel Industries Inc..

ETERMINATION IRON AND MANGANESE CONTENT IN MOTOR FUELS

2017 ◽  
Vol 59 (2) ◽  
pp. 097-102
Author(s):  
Anastasiya A. Kotlova ◽  
◽  
Ilya A. Belous ◽  
Anastasiya V. Kiyashko ◽  
Roman S. Edigarev ◽  
...  
Keyword(s):  
Manganese Content ◽  
Motor Fuels ◽  
Iron And Manganese

Nutritional status of recently developed Makhana (Gorgon Nut) variety “Swarna Vaidehi”

2016 ◽  
Vol 3 (4) ◽  
Author(s):  
LOKENDRA KUMAR ◽  
ANIL KUMAR SINGH ◽  
B. P. BHATT
Keyword(s):  
Standard Procedure ◽  
Manganese Content ◽  
Zinc Content ◽  
Calorific Value ◽  
Calcium Content ◽  
Total Carbohydrate ◽  
Local Cultivar ◽  
Euryale Ferox ◽  
Nutritional Profiling ◽  
Maximum Moisture Content

Makhana is an important aquatic, annual and seed propagated crop with gigantic floating leaves. It is known as Gorgon nut (Euryale ferox Salisb) belongs to family Nympheaceae. Swarna Vaidehi has been released as an ever first variety of makhana originated from selection-6. Nutritional profiling was undertaken for popped seeds of Swarna Vaidehi and local cultivar along with raw seeds of “Swarna Vaidehi”. Standard procedure was applied for nutritional profiling of the Makhana samples. Results reveled that maximum moisture content (34.7%) %) was recorded in case of raw seeds of swarna vaidehi. Maximum ash content (0.4%) was recorded in case popped seeds of both tested samples i.e. swarna vaidehi, lowest value (0.3%). Maximum seed protein (8.7%) was obtained by the swarna vaidehi. Maximum crude fiber (0.5%) was obtained in the raw seeds of swarna vaidehi as compare to popped one. Maximum total carbohydrate (79.8%) was recorded in popped seeds of swarna vaidehi; however the lowest value (57.0%) was also noticed in raw seeds of swarna vaidehi. It worth to notice that maximum calorific value (358) was recorded in popped seeds of swarna vaidehi. Maximum (18.5mg) calcium content was recorded in case of popped seeds of swarna vaidehi. Likewise maximum (1.3) manganese content was recorded in case of popped seeds of swarna vaidehi. It was worth to mention that maximum (1.1) zinc content was recorded in case of popped seeds of swarna vaidehi.

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