Technology of machine of electric fusion welding is summed up

5V, move up highest can output 44V only, can use at low block load only, cannot output 120V solder voltage, cannot solder with what take at electric heat so. As a result of this reason, just produced electric heat to take chance of electric fusion welding. Perhaps somebody can ask, why cannot design the output voltage of machine of fusion welding of pipe fitting report a few taller, be used at electric frit pipe fitting already solder to also be used at what electric heat takes to solder? Apparently it is OK to look, but to accusing model for machine of electric fusion welding, after voltage rises, solder when electric frit pipe fitting, power factor will become very low. It is with respect to above face exemple, if transformer virtual value of deputy edge voltage raises 120V, and solder voltage still is 39.

5V, so at the back of the basis (1) type is knowable, right now power factor is 39.

5/120=0.

329, such power factor is too low. If solder voltage under 39.

5V, criterion power factor will be lower. Be being done so so is no good actually. Solder the crucial technology that the means of control means control of voltage is machine of electric fusion welding, the actor bad of machine of fusion welding of a kind of report, basically depend on control means. Communication accuses model machine of fusion welding of this kind of report uses machine of electric fusion welding directly after labour frequency power source passes transformer step-down, serve as solder voltage. Adjust to achieve solder the purpose of voltage, use silicon controlled rectifier to move to be controlled, if the graph is shown 1 times,its output weaveform. Those who output voltage is the biggest guide current flow angle is 90 degrees surely, its purpose is implementation discontinuous heat, be helpful for heat conducting so, protective resistor silk is unapt burn. For its output voltage (3) type is knowable, voltage of a highest output is 39.

The electric frit welder of 5V, its output the peak value of voltage to be 79V. Voltage of a highest output is the machine of electric fusion welding of 50V, its output the peak value of voltage to be 100V. See not hard from this, if should do a highest output,voltage is 39.

The electric frit welder of 5V, need to do a power to satisfy only solder requirement, its change than be 2/79=3 of N=220 × √ .

The labour frequency transformer of 94, voltage of former to its edge undertakes moving to be controlled, it is OK to control a function plus other next. This is one kind the easiest the simplest implementation method. The welder of import report frit such as the Italian RITMO that author place sees and French model dragon produces machine of electric fusion welding to adopt this kind of plan with a lot of countries. From the point of power factor, move as a result of what control part photograph limits is spent for 90-180, corresponding power factor is 0.

707-0. See not hard, power factor can be achieved only greatly most 0.

707. Output voltage is lower, power factor is lower also. Power factor low nature is not energy-saving. Accuse model the biggest advantage of machine of electric fusion welding is, circuit is simple, come true easily. Its defect is: (1) because it works to be versed in at 50HZ frequency limits, must carry the transformer of annular labour frequency of ponderosity of a bulk on the back. So, homebred photograph accuses model chance of electric fusion welding is the least be in 20Kg above, of the entrance also not under 17Kg, volume is very heavy, do not facilitate carry. (2) harmonic weight is great, produce harmonic pollution to electrified wire netting directly. Because had accused the sine wave generation after many tall second harmonic, and these Gao Cixie wave are immediate infuse electrified wire netting. Look from the angle of environmental protection of electrified wire netting accordingly, accuse model machine of electric fusion welding is unfavorable promotion. (3) pipe fitting impulse current is too big. Because output the peak value U2m=2U of voltage, an output voltage is 39.

The photograph of 5V accuses model machine of electric fusion welding, its output peak value voltage to be 79V, if pipe fitting resistor is 1 ohm, electric current of the greatest peak value is 79A. Such big impulse current generates powerful harmonic interference on one hand, burn resistor silk possibly still on the other hand. Phenomenon of fracture of wire often appears in construction, slant because of the dissipation power of resistor silk namely small, block is worth on the low side, and the impulse current of welder comes very big again. (4) welder efficiency is low. Because the efficiency of welder transformer has 80% only commonly, go against energy-saving. (5) output voltage precision is low. By (1) type is knowable, outputting voltage is between U and control horn α complex nonlinear relation, give an U value, want to get α to be worth special difficulty through be being calculated in real time, so actual in use the method that check a watch to come true. But this appears again a new issue, if will output voltage resolution,take 0.

1V, region is worth in some, α value will be little hard argue knowledge. If had obtained resolution big, output voltage precision insufficient. Rise eclectically so, output voltage resolution is taken 0.

5V. This is foreign photograph accuses model resolution takes the output voltage of machine of electric fusion welding 0.

The real reason of 5V. Tell strictly, this resolution is lower. Machine of fusion welding of report of Nextpage communication complete mode machine of fusion welding of this kind of report, its are outputted is a virtual value for 39.

The complete sine wave of 5V, peak value voltage is 56V, if pursue,3 are shown. Voltage of output of machine of fusion welding of this kind of report is changeless, dominate weld time only, the author ever had checked Zhejiang the product of some factory, it is this kind of plan. Its are the biggest the advantage is: (1) production technology difficulty is little, come true easily. (2) because solder,voltage is a complete sine wave, power factor is 1, do not have harmonic pollution to electrified wire netting. (3) peak value voltage is low, small to pipe fitting impulse current. Its defect is: (1) because the job is in labour frequency, must take transformer of frequency of a labour, volume is very heavy still. (2) output voltage cannot be changed, cannot satisfy need change to solder of voltage solder requirement. Because cannot realize dead loop control, output voltage cannot be stabilized. (3) because be successive,heat, slant when power of pipe fitting dissipation hour, often burn resistor silk, make pipe fitting discards as useless, solder failure. (4) efficiency is low, go against energy-saving. Tell strictly, this is the electric frit welder with a kind of very low class, technical index and standard requirement differ very far, solder quality cannot assure at all. Graph the 4 principle block diagram that are machine of fusion welding of Quan Bo report. Machine of fusion welding of inversion of machine of inversion report fusion welding report and before both is disparate, it is not direct after passing labour frequency voltage transformer step-down, serve as solder voltage, undertake labour frequency voltage complete wave commutate however, undertake inversion again. Undertake to inversion voltage again next again rectification, become rectification voltage inversion labour frequency communication to regard as again finally solder voltage. Solder voltage and weld time still can adjust arbitrarily inside big range. Its output voltage to be U=um √ T/T, (4) then T=u2T/u2m solders when PE is in charge of, t=20ms, solder frequency is 50Hz; Solder when steel model multiple tube, t is 250ms, solder frequency is 4Hz, solder in order to realize ultralow frequency, reduce eddy current loss. With before both photograph is compared, the main good point of machine of inversion report fusion welding depends on: (1) with technology of high frequency inversion, swung the labour frequency transformer of bulk ponderosity, those who realized welder is light quantify, facilitate carry. (2) use commutate of diode complete bridge, factor of its power input is 1. (3) inversion efficiency is tall, can amount to 90% above commonly, lowest also not under 85% , be helpful for managing electric energy. (4) voltage of output peak value is low, instantaneous impulse current is small, won't burn resistor silk. (5) output voltage precision is tall. Because machine of inversion report fusion welding has incomparable advantage, already environmental protection, light, energy-saving, output voltage precision tall, it is the electric frit welder that popularizes energetically in the future. Machine of alleged dc fusion welding exports machine of dc fusion welding namely the electric frit welder that voltage is dc. Machine of fusion welding of this kind of report uses inversion means more, and only inversion, output filter wave uses inductance filter wave, for instance dragon spring force is amounted to and Tianjin the electric frit welder of dimension is machine of dc fusion welding. Graph the 6 principle block diagram that are machine of dc fusion welding. Nextpage the advantage of this kind of welder is: Realize difficulty of simple, technology not quite; Swash electric current is small; Weight is light; Solder eddy current loss is not had when steel model multiple tube. Its defect is: It is dc heats, heating so is successive, without medicinal powder hot time, local cross solder and carbonization easily; Because output uses inductance filter wave, and pilot is output voltage, output voltage precision is consequently low, cannot realize high accuracy control substantially. The function of fusion welding machine installs basic function this is the function with any electric frit necessary welder, basically have: 1) gives voltage or voltaic stability, can adjust arbitrarily inside certain limits. Weld time can be in 2) set of the random inside the limits of the requirement. 3) protects a function perfectly. Assisting a function to assist a function is to improve welder performance further, rise solder quality and of the setting. These functions are richer, the automation rate of welder is higher, the operation is simpler, safer, solder the effect is better. So, auxiliary function also is very important, content reflects the technology of machine of electric fusion welding to go up in auxiliary function. 1) complete Chinese operates interface; 2) input voltage and frequency detect function (accuse model He Quanbo welder needs this one function, and inversion do not need) ; 3) environment temperature detects; 4) " temperature - time " automatic compensation; Resistor of 5) pipe fitting is automatic sampling; 6) automatic computation heats up result quantity; 7) is generated automatically solder parameter; 8) compensates pipe fitting parameter automatically; 9) detects automatically temperature sensor open a way and short circuit breakdown call the police; 10) operation parameter, solder parameter and breakdown show automatically; 11) detects automatically solder loop open a way and short circuit breakdown call the police; 12) has detected automatically pressure, owe press and shed breakdown too, can protect in real time with call the police; 13) detects automatically the operation is wrong, undertake clew through screen; 14) solders parameter is generated automatically / the hand uses an input or input of form code scanning; 15) solders record memory; 16) solders the record browses inquiry; 17) solders the record downloads; 18) solders the record is printed; 19) strings together buccal communication; 20) calendar clock; 21) solders voltage / electric current is controlled circularly to death. The chooses engine of electric fusion welding option of fusion welding machine basically considers the following. Because machine of electric fusion welding basically is used at spot construction,carry convenient sex, must move move, of course weight has been jumped over gentlier. Common entrance accuses model weight of machine of electric fusion welding is in 17KG above, many homebred welder are between 20-40KG, and machine of inversion report fusion welding has 10KG only about. Apparent, machine of inversion report fusion welding ought to be first selection. Operate convenient sex to must consider at 2 o'clock: Personnel of field work of menu of A) complete Chinese is familiar with English not quite commonly, importing welder is English interface completely, have certain difficulty to a common handlers. So from convenient field work member consideration, ought to the electric frit welder of menu of first selection complete Chinese. B) operation has been jumped over simplier as above, field work member not only English has difficulty, operate interconnected system of complex computer science department to have difficulty likewise, if the operating sequence of machine of electric fusion welding is too complex, to them, it is a headachy thing likewise. Tell from this meaning, ought to first selection operation is simple full automatic machine of electric fusion welding. Technical index and function solder closely related the function of quality and welder and technical index. If degree of automation of machine of fusion welding of a report is inferior, a lot of finger want artificial intervention, so solder quality assures hard; If project of index of technology of machine of fusion welding of a report is very few, precision low, should assure to solder quality also is impossible. Solder to assure so quality, ought to choose a function project of index of strong, technology rich, precision the machine of electric fusion welding with automation tall, high rate. Sexual price compares just as its name implies, sexual price compares = (function + function) / the price, namely the function that unit money can buy and function, so, when the user buys machine of electric fusion welding, cannot see the value only, sexual price compares taller ability is good product. Green environmental protection is right for machine of electric fusion welding, green environmental protection has two meanings: It is energy-saving, efficient; 2 it is not to have harmonic pollution. Before already refer, because its control the inherent characteristic of means, opportunity of some report fusion welding arises Gao Cixie wave to pollute electrified wire netting, so, ought to first selection those efficient and energy-saving, report fusion welding that pollute without harmonic machine. About full automatic machine of electric fusion welding has a lot of manufacturer now the pen that bring light or the machine of electric fusion welding of form code scanner is called full automatic machine of electric fusion welding, actually this is wrong. Tell strictly, full automatic machine of electric fusion welding besides have " temperature - time " outside compensating a function automatically, still must have the following function: A.

Can identify pipe fitting parameter automatically; B.

Automatic computation solders hot result gross; C.

Generate automatically solder parameter; D.

Compensate pipe fitting parameter automatically. Want to realize this 4 big functions, must above all can " identify pipe fitting parameter automatically " , otherwise 3 functions cannot realize the others. And smooth pen or what form code scanner inputs is not true pipe fitting parameter, set artificially however solder voltage and weld time, so smooth pen or the electric frit welder that form code scanning inputs is imponderable solder hot result gross, can undertake soldering heating up result accumulative total only, accordingly it cannot be generated automatically solder parameter, cannot compensate pipe fitting parameter automatically more, so it is not full automatic machine of electric fusion welding. CNC Milling