White Board

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Payment Terms:: TT or LC

Min Order Qty:: 6 Pieces pc

Supply Capability:: 100 Pieces per Month pc/month

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Swing Board :

The area you can write on Swing Board is 1.5 times when compared with the conventional white board.

1. The area you can write on Swing Board is 1.5 times when compared with the conventional white board.

2. You can write and draw on the 6 pages of Swing Board.

3. The revolution of the panels (front - back) is quick and smooth.

4. The letters written on the surfaces of Swing Board do not turn upside down because the panels revolve horizontally.

5. You can use it at the arbitrary angles from 0 to straight angle.

6. You can use it at the corner part of the chamber when Swing Board is opened at 90 angle.

7. Swing Board is foldaway, so it can be set compactly.

8. Swing Board is easy to carry.

9. Product size (mm)

1). When opened in maximum : 1800w x 1800h

2). When closed : 900w x 1800h

3). Board size : 900w x 900h

10. Attachments : 2 marker pens (red, black), 1 eraser, 6 magnets.

Price : USD $1850 / 1product

The price is our recommended user price in Japan.

Q:Hand welding electrodes 3.2 and 4 which are more commonly used?: Electrode core diameter, that is to say, 3.2 of the electrode core is 3.2 millimeters in diameter, and 4 is 4 millimeters in diameter.The diameter of the welding rod is large, and the current should be larger when welding. High current, high efficiency, can be used in relatively thick plate welding. On the contrary, relatively thin plate welding, should choose a smaller diameter welding rod.Electrodes commonly used in three specifications, 3.2, 4, 5. Civil J422 and J506 more commonly used, industrial use of J507, J427 more. But the civilian use of 3.2 diameter more.

Q:J807 electrode specification: Gas shielded flux cored wire with high strength steelSHJ807Description: SHJ807 is a metal cored low alloy high strength steel welding wire. When welding, the welding wire is connected to the positive pole and 80%Ar+20%CO2 mixed gas or 100%CO2 is used to protect the welding wire. The welding process has good performance and high welding efficiency. Deposited metal has good crack resistance and high toughness. The workpiece should be preheated in the range of 250~350 centigrade before welding and be treated by tempering at 620 DEG C after welding.Application: it is used for welding high strength steel of relative strength grade, and can also be used for surfacing of ordinary wear-resistant parts or for transition layer of hardfacing parts.Typical chemical composition of deposited metal (%)Ingredients C, Mn, Si, S, P, Cr, MoThe measurement value of 0.065 1.63 0.3 1.05 0.48 0.025 is less than or equal to 0.025Typical mechanical properties of deposited metal: (690 * 1H tempering)Tensile strength (o b) Mpa yield strength (by 0.2) Mpa (5)% elongation impact energy of Akv (-40 C) JMeasured value 8207601838Recommended parameter: (DC+) (1.2mm)Welding current (A), welding voltage (V), dry stretch length (mm), gas flow (l/min)200~260 28~32 15~25 20Matters needing attention：Remove rust, oil stain and moisture before welding.Remove welding slag between welding layers, and avoid slag inclusion.When welding, preheating and post heat treatment are carried out according to process requirements.Welding wire should be kept in a cool and dry place. It can be used up in time.

Q:Why can DC welding machine weld any electrode?: General welding rod (acid welding electrode) is both AC and DC dual-use.Basic electrode, recommended DC, AC is also ok.Cellulose electrodes must be dc.So it comes to this conclusion.

Q:Why do welding electrodes need heating?: Prevent welding rod from wettingPreheat the cores, enhance electrode weldabilityIt's also a welding processThe electrode (covered electrode) welding or welding filler metal in melting joint welding of the workpiece.The electrode (coveredelectrode), is the metal coating in the welding core (coating), uniform centripetal pressure applied to core. The core metal cored electrode, in order to ensure the quality and performance of the weld, there are strict rules on the contents of metal elements in the core, especially for harmful impurities (such as sulfur, phosphorus content, etc.) should be strictly restricted, better than the base metal.

Q:How are the electrodes made up?: Answer: welding rod is coated with the skin of the power supply arc welding melting electrode. It is composed of two parts covering and core wire. (L) cores. The electrode is metal cored coating called cores. The core is generally a certain length and diameter of the steel wire. When welding, the welding core has two functions: one is the conduction of the welding current, arc energy converted into heat energy; two welding core melting filler fused with the parent metal weld formation. The special steel wire used for welding can be divided into three categories: carbon structural steel, steel wire, alloy structural steel wire and stainless steel wire. (2) medicine skin. The pressure on the surface of electrode coating called coating. A coating of various minerals, such as minerals, is coated on the outside of the electrode to stabilize the arc and improve the quality of the weld. Some reducing agents should be added into the coating to restore the oxide to ensure the quality of the weld. Because of the high temperature of the arc, some of the alloying elements contained in the weld metal are burned (oxidized or nitrided), which reduces the mechanical properties of the weld. By adding ferrous alloy or pure alloy element to the electrode coating, it can be transferred to the weld metal with the melting of the coating, so as to compensate for the burning of the alloy elements and to improve the mechanical properties of the weld metal. It can improve the welding process performance, make the arc stable combustion, less spatter, good weld formation, easy slag removal and high deposition efficiency. In short, the role of the drug skin is to ensure that the weld metal to obtain the required chemical composition and mechanical properties, and make the welding rod has good welding process performance.

Q:What kind of steel bars are used for the two electrodes?: J422 welding rod is mainly used for welding low carbon steel structure and low strength low-alloy steel, such as A2, No. 20 steel, No. 35 steel, etc..J502 welding rod is mainly used for welding low strength carbon steel structure and alloy steel, such as A3, No. 45 steel, 16Mn and so on.J422 welding rod and J502 welding electrode are common terms, corresponding to international standard brands are E4303 and E5003 respectively. Is a kind of acid electrode, titanium calcium coating, J structural steel electrode, 42 and 50 respectively, the tensile strength of the weld metal (more than 420MPa and more than 500MPa), said 2 electrode for all position welding (welding, welding, overhead welding, horizontal welding).

Q:What welding electrodes are used to weld 304 stainless steel pressure vessels?: 1, 304 is the United States standard, GB is 0Cr19Ni9, you can choose A102, A107 can, if you don't worry, you can use A302, but the cost is higher, it is better to use A107 welding rod, it's crack performance is better.2, I wish you success.

Q:When 507560 electrodes are used at the same time, which electrode should be selected?: Should be 506 electrodes bar, J507 is DC alkaline welding rod, and J506 is AC and DC dual basic electrode.Their selection depends mainly on the welding properties, if welding welding seam is important, the general should use J507 electrode; if the weld is not high, is connected to weld, then select the J506 electrode.In addition, if only the AC power supply, you can only choose J506 electrode.In short, under normal circumstances, the basic electrode should try to choose the DC power supply electrode, because it tends to be less than the gas and DC welding electrode.

Q:What does 70 of the e7015 electrode mean?: The method of welding rod number is as follows: the welding rod letter "E" means welding rod;The top two digital said the minimum value of the tensile strength of the deposited metal is kgf/mm - unit. (70kgf/mm = - 690 MPa)Third digit electrode welding position, "0" and "1" electrode for all position welding (flat, vertical, horizontal, upward), "2" is suitable for welding and fillet welding electrodes, "4" is suitable for vertical down welding electrode;The third and fourth bit numbers indicate the type of weld current and the type of coating.After fourth digits, additional "R" is added to indicate the resistance to moisture absorbing electrode. Additional "M" is used to indicate the resistance to moisture absorption and mechanical properties. The electrode with special requirements is added with "-1", indicating that the electrode with special requirements for shock performance is attached.

Q:In the pipe welding, a welding rod welding in the replacement of an electrode should be how to deal with joints?: Pipeline welding joints, is most in need of careful treatment, whether it is single channel multi pass welding or welding, the joint processing is not good, there may be slag, poor fusion welding defects such as weld, resulting in leakage after completion of pressure test;There are two kinds of joint methods after replacing electrode:1 、 hot connection:After stopping quickly changed new electrode, is the ability to remain in the state at the arc, immediately from the pool in front of the arc and the arc pulled at the arc with the rapid arc even (horizontal zigzag) welding, welding to weld arc hole under pressure, a when arc melting groove blunt edge "puff" sound, immediately moved into normal welding method of welding;The main point is to replace the welding rod, the action should be quick, and the joint must be skilled and flexible. It is a commonly used joint method in welding production.2, cold connection:Cited the joint of the slag shall be clean at the arc arc, too high or have evidence to grinding in the gentle slope, and then from the original crater 10mm arc, with long arc slightly preheated with arc welding to the horizontal swing forward arc pit, arc under pressure, when the arc breakdown root hair a "Puff" sound after welding can be transferred to normal.Cold joint advantage is not good when the arc weld (with shrinkage or welding meat too thick), can eliminate the defects and grinding, thin joints, easy to ensure the welding quality; the difficulty is small heat connection; drawback is not as efficient as the thermal connection is high, especially not allowed in grinding joints, (such as skills competition) should not be used this method.

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