International diammonium phosphate market continues to rise
ELECTRIC DRIVE CUTTING TORCH CARRIAGE Gas Cutting Machines,Gas Cutter,Plasma Gas Cutting Machine,Flame Gas Cutting Machine Changzhou Edaweld Trading Company Limited , http://www.edaweld.com
Producers in North Africa say that the target price for DAP is $560/mt FOB, and that monoammonium phosphate is $20/t higher than this, and this price has already been traded, but it has not announced specific transactions. At present, Morocco has signed a 100,000-ton contract with Europe and it is reported that it has signed similar amounts with the United States. Judging from the strong spot demand in the current European market, OCP in October estimates that there will be 100,000 tons of supplies available.
The GCT in Tunisia has a good sales situation. In October, there are limited products available for sale. It is planned to ship a ship to the United States. The estimated price is comparable to that of the OCP, which is basically $560-565/mt FOB. The Turkish Bagfas export quotation is $570-580/mt FOB. JPMC has signed 250,000 tons of DAP with Ethiopia through AISE, making the sales pressure before the first quarter of 2011 not heavy. The transaction price is $588-600/mt CFRLO, equivalent to the FOB price of $530-540/mt FOB.
China's domestic market demand is still strong. At present, the arrival price in the domestic market is 2950-300 yuan/ton, and the export quotation is $500/mt FOB. On October 16th, the 7% tariff in the off-season will be implemented again.
An improvement over mechanical guides is an electric motor-driven cutting torch carriage. The speed of the motor can be varied allowing the welder to cut to dimensions and to cut at a specific speed. A typical motor driven carriage has four wheels: one driven by a reduction gear, two on swivels (castor style), and one freewheeling. The torch is mounted on the side of the carriage and is adjusted up and down by a gear and rack. The rack is a part of the special torch. The torch also can be tilted for bevel cuts. This machine comes with a straight two-groove track and has a radial bar for use in cutting circles and arcs. A motor-driven cutting torch cutting a circle is shown in figure 4-25. The carriage is equipped with an off-and-on switch, a reversing switch, a clutch, and a speed-adjusting dial that is calibrated in feet per minute.
Figure 4-25.-Electric motor-driven carriage being used to cut a circle in steel plate.
Figure 4-26 shows an electric drive carriage on a straight track being used for plate beveling. The operator must ensure that the electric cord and gas hoses do not become entangled on anything during the cutting operation. The best way to check for hose, electric cord, and torch clearance is to freewheel the carriage the full length of the track by hand.
Figure 4-26.-Electric motor-driven carriage being used on straight track to cut a beveled edge on steel plate.
You will find that the torch carriage is a valuable asset during deployment. This is especially true if your shop is called upon to produce a number of identical parts in quantity. Such an assignment might involve the fabrication of a large supply of handhole covers for runway fixtures, or another assignment might be the production of a large quantity of thick base plates for vertical columns. When using the torch carriage, you should lay the track in a straight line along a line parallel to the edge of the plate you are going to cut. Next, you light the torch and adjust the flame for the metal you are cutting. Move the carriage so the torch flame preheats the edge of the plate and then open the cutting oxygen valve and turn on the carriage motor. The machine begins moving along the track and continues to cut automatically until the end of the cut is reached. When the cut is complete, you should do the following: promptly turn off the cutting oxygen, turn off the current, and extinguish the flame--in that order. The cutting speed depends upon the thickness of the steel being cut