Heated Pouring Ladle ( More)
Channel inductor
If the foundry needs the flexibility of an unheated ladle system, but have high iron temperature control requirements, we can provide a heated ladle solution.
By installing a new ladle body equipped with anchannel inductor, the system can deliver up to 100kW into the iron bath. This will give the foundry the ability to keep the metal at a stable temperature. The electrical efficiency of channel inductor can be up to 90%.
The heated ladle is designed with back tilt. This ensures a quick and easy way to empty the ladle for metal grade changes. The heated ladle can be powered by a medium frequency or main frequency power supply depending on the applications. Instead of water cooling, air cooling can be used if main frequency system is the choice, this will simplify the system configuraton and further lower the maintenance cost.
Heated and Pressurized Pouring Systems - With Channel Inductor.
Advantages:
* Pressurized system, metal level is maintained constant in the pour box to insure a stable metal flow during pouring
* Equipped with medium frequency power supply, stepless power control
* Temperature can be controlled by superheating molten bath and holding
* Wide capacity range from small to larger as a good metal buffer between melting furnace and molding line
* High electrical efficiency, up tp 90%. Energy saving
* Suitable for long time and continuous production, good for producing single casting with fixed grade. Efficiency is very high and enrgy cost is extremely low
Disadvantages:
* Furnace can not be emptied completely at any time, a heel is always required inside furnace, always power on. The metal grade change is not easy
* Channel inductor is usually located at the furnace bottom or rear side, the inductor circultesand heats the metal inside channel loop only. The temperature is not uniform through the entire molten bath, especially for in/out siphons which are not exposed to any heating directly. To pour at 1400 deg. C, channel inductor need to heat the metal inside channel loop up to 1500 deg.C
* Need regularly cleaning and de-slagging channel loop
* In/out sipphons is located at both sides of furance, the molten metal there has the lowest temperature through the entire molten bath. There is a risk for slag build-up in siphons. Maintainance downtime, de-slagging and heawy cleaning in siphons is needed
* For all ductile iron production, downtime of several shifts per week is needed for maintenance and de-slagging
* Not suitable for ductile iron production
Heated and Pressurized Pouring Systems - Coreless
Advantages:
* Patented "Apple Core" design, higher electrical efficiency, up to 70% depending on furnace size
* Pressurized system, metal level is maintained constant in the pour box to insure a stable metal flow during pouring
* Equipped with medium frequency power supply, stepless power control
* Temperature can be controlled by superheating molten bath and holding
* Entire metal area including main bath and in/out siphon is suroundded and heated by the induction coil, and has uniform temperature. Keep the pouring temperature almost as same as the molten bath inside furnace
* Wide capacity range from small to larger as a good metal buffer between melting furnace and molding line
* Can be totally emtied by back-tilting for easy metal grade change. Cold start is allowed after power off under emergency situation. Complete power off is possible for a long time production stop
* Nodularization fading can be delayed efectively by introducing nitrogen atmosphere protection inside furnace
* The entire molten bath and in/out siphon is heated, less slag build up in siphons and it is easy to clean. Maintainance downtime for de-slagging work is much less and easier than channel inductor furnaces
* Useable capacity is high. The usable volume is more than 80% of total furnace volume
* Suitable for long time and continuous production, good for producing castings with all sorts of grade including ductile iron
Disadvantages:
* Relatively lower electrical effiency and higher energy cost compared with the system with channel inductor
"Excuse me," Arthur ventured, huskily, "did you wish to speak to me?" "What!" Balmayne cried, "were you mad enough to----." seventeen Christmas presents? I'm a Socialist, please remember; And to close the procession came more soldiers. For that fog the seaplane was making at full speed. It was no wonder that Spain, feeling the serious effects of this state of things, should resist it; and when she did so, and exerted an unusual degree of vigilance, then the most terrible outcries were raised, and wonderful stories were circulated of Spanish cruelties to our people beyond the Atlantic. At this time the Opposition got hold of one of these, and made the House of Commons and the nation resound with it. It was, that one Captain Robert Jenkins, who had been master of a sloop trading from Jamaica, had been boarded and searched by a Coastguard, and treated in a most barbarous manner, though they could detect no proof of smuggling in his vessel. He said that the Spanish captain had cut off one of his ears, bidding him carry it to his king, and tell his Majesty that if he were present he would treat him in the same manner. This story was now seven years old, but it was not the less warmly received on that account. It excited the utmost horror, and Jenkins was ordered to appear at the bar of the House of Commons on the 16th of March, to give an account of the outrage himself; and it would appear that both he and other witnesses were examined the same day. Jenkins carried his ear about with him wrapped in cotton, to show to those to whom he related the fact, and the indignation was intense. He was asked by a member how he felt when he found himself in the hands of such barbarians, and he replied, "I recommended my soul to God, and my cause to my country." The worthy skipper had probably been crammed with this dramatic sentiment by some of his clever Parliamentary introducers; but its effect was all the same as if it had been a genuine and involuntary expression of his own mind. Researches made at the Admiralty in 1889 proved that he really had lost an ear. Nevertheless, the whole army was dead beat and in the most deplorable condition when they entered Carlisle on the morning of the 19th. As the enemy did not appear, they rested that day and the following night, when they set forward again, leaving a fresh garrison. Cumberland was soon up before the walls, and they fired vigorously at him; but he sent off to Whitehaven and brought up six eighteen-pounders, with which, to their dismay, he began to play on their crumbling walls on the 29th. Next morning they hung out a white flag, and offered to capitulate; but Cumberland would hear of no terms except their surrendering on condition that they should not be put to the sword. At three o'clock in the afternoon both town and castle were surrendered, the garrison being shut up in the cathedral, and a guard set upon them. On the 3rd of January the Duke of Cumberland left the command to General Hawley, and hastened back to London, being summoned to defend the southern coast from a menaced landing of the French. In pursuance of this plan of the campaign, Prideaux and Johnson arrived before the fort of Niagara in the middle of July, which they found very strong, and garrisoned by six hundred men. Prideaux was soon killed by the bursting of a shell, but Johnson continued the siege with great ability, having to invest the fort on one hand, whilst he was menaced on the other by a mixed body of French and Indians, one thousand seven hundred in number, who came to relieve the fort. The attack upon him commenced with a terrible war-whoop of the Indians, which, mingling with the roar of the great cataract near, made the most horrible din imaginable. But this did not disconcert the English and their savage allies, who received them with such steady courage, that in less than an hour they were put to the rout in sight of their own garrison, and pursued for five miles with dreadful slaughter. The garrison thereupon capitulated, remaining prisoners of war. There, however, Sir William Johnson's career stopped. From various causes, not foreseen, he was not able to advance beyond the Ontario to unite with Amherst. That general had fully succeeded in taking Ticonderoga and Crown Point, but he found the French so strongly posted on an island at the upper end of Lake Champlain, that he was compelled to stop and build[134] boats to enable his army to reach and dislodge them; and it was not till October that he was ready to proceed, when he was driven back repeatedly by tempests, and compelled to go into winter quarters. "Some of you find Lieut. Bowersox, and bring him here," said Capt. McGillicuddy, sitting up, and beginning to twist a handkerchief around his thigh, to form a tourniquet. "Lieutenant, you all right?" The old man mounted into the seat, gathered up the rope lines, and chirruped to the horse to start. He hitched forward cautiously a little farther, to where he could peer through the bushes, being exceedingly wary not to repeat his opponent's mistake, and set their tops in motion. A rock protruding through the ground in front of him made an opening through which he could see, and also afforded a rest for his musket. He looked sharply, and at length was rewarded by seeing the gun-barrel come out by the side of the barked willow, rested on a bare limb, and apparently aimed at the hill beyond. He took a long breath to steady his nerves, stretched out his legs to make himself more at ease, pushed his musket forward until he got exactly the right poise, aimed about nine inches below the level of his opponent's gun-barrel, and a little to the left, drew his bead down to a hair's nicety in the hind sight, and pulled the trigger just as the rebel sharpshooter did the same. Both muskets seemed to flash at the same moment. The rebel sprang up through the willows and fell forward on his face. There was a vague hint that he had seen the face somewhere, but he dismissed it, then settled himself, and, busy with his own thoughts, pressed his face against the window, and tried to recognize through the darkness the objects by which they were rushing. They were all deeply interesting to him, for they were part of Maria's home and surroundings. After awhile the man appeared temporarily tired of billing and cooing, and thought conversation with some one else would give variety to the trip. He opened their lunch-basket, took out something for himself and his companion to eat, nudged Shorty, and offered him a generous handful. Shorty promptly accepted, for he had the perennial hunger of convalescence, and his supper had been interrupted. It was their regiment—the 200th Ind.; it was made up of the same companies, with the great majority of the men the same, but it was very far from being the 200th Ind. which crossed the Ohio River in September, 1862. "I should say he had a mighty strong breath, Monty," Shorty interrupted. He liked to break in on Monty's heroics. "Excuse me from havin' a 12pounder breathin' around me." "Yes, but d?an't m?ake him angry—he might beat you." "I used to be in the fancy," said the minister, "but five years ago the Lord challenged me, and knocked me out in the first round." "We shall talk further," said Holgrave: "in the mean time, we must consult for your own safety. If your father was a villein of this barony, it is not likely that the old steward, or the new one—the fiend Calverley—should forget you; and——"
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