Weight of the porter-bar and chuck which hold the plate for forging is 125,000 pounds, exclusive of counterweights used. 佚名.神奇的知识之书.
Molding of Glass and Forging of Iron. 伯莎M.克拉克.科学通论.
After the parts are put together a thorough forging follows, either by use of hammer or press, the latter being now used in preference. 佚名.神奇的知识之书.
Fire melts ore and allows of the forging of iron, as in the blacksmith's shop, and of the fashioning of innumerable objects serviceable to man. 伯莎M.克拉克.科学通论.
A great battleship, forging silent and unlighted through the dark night, loomed close astern. 埃德加·赖斯·巴勒斯.火星战神.
The lap-welded barrel was standard until 1850, and he got together a battery of trip hammers for forging and welding his barrels. 佚名.神奇的知识之书.
The usual practice in forging is to continue it until the ingot is decreased to one-half its original thickness and is within two inches of the desired diameter of the finished work. 佚名.神奇的知识之书.
After heating, the ingot is placed under a 14,000-ton hydraulic forging press and forged to the required dimensions. 佚名.神奇的知识之书.
Average physical properties shown in United States Standard test bar taken from full-sized prolongation of end of forging: Elastic limit, 53,560 pounds per square inch. 佚名.神奇的知识之书.
It is then annealed with great care to relieve the strains set up in the metal by the forging and next goes to the machine shop to be rough bored and turned. 佚名.神奇的知识之书.
Among the smaller self-acting engines, the forging machine for making bolts attracts attention by the rapidity of its action. 弗雷德里克·科利尔·贝克维尔.伟大的事实.
Steel casting forming part of a 12,000-ton armor-plate hydraulic forging press. 佚名.神奇的知识之书.
Compeyson's business was the swindling, handwriting forging, stolen bank-note passing, and such-like. 查尔斯·狄更斯.远大前程.
The forging and the rolling of the plates are performed by the same means. 威廉·亨利·杜利特.世纪发明.
It is into these furnaces that the various forgings are placed for heat-treating. 佚名.神奇的知识之书.
The process of heat-treating steel forgings before they are machined is one of the most scientific and accurate features in the manufacture of this car. 佚名.神奇的知识之书.
After the required heat has been reached, the forgings are allowed to either cool in the air, be covered with pulverized mica, or quenched in a special solution, as the case may require. 佚名.神奇的知识之书.