Nhazi na njirimara nhazi nke aluminom na aluminom alloy rod na-aga n’ihu nkedo na ahịrị mmepụta

A, four-wheel continuous caster

A na-ebubata ihe nkedo anọ na-aga n’ihu site na nkà na ụzụ ụlọ ọrụ Italy Propez, ụlọ ọrụ anyị na-agbari ma na-amịkọrọ imewe na imepụta ya. tumadi mejupụtara agbapụtara Fort, crystal wheel na nnyefe ngwaọrụ, tuo wheel ngwaọrụ, ígwè belt oiling ngwaọrụ, obibia àkwà mmiri, erughị ala wheel ngwaọrụ, mpụga jụrụ ngwaọrụ, plọg, ingot picker ígwè eriri, wdg, niile akụkụ na-arụnyere na igwe Isi ahụ. .

The molten aluminum flows from the holding furnace through the launder into the middle fort. The floating plug uses the principle of leverage to control the flow of the molten aluminum into the lower pouring fort (see Figure 1 and Figure 2). In the mold cavity formed by the crystal wheel and the closed steel belt. The entire pouring fort can be moved up and down by the motor, turbine reducer and screw pair. The cross section of the crystal wheel is H-shaped, which is controlled by AC motor frequency conversion (or DC motor) and driven by a gear box. The cooling device of the crystal wheel is controllable internal cooling, external cooling, internal cooling, and external cooling. It is sprayed to each zone through a cooling water nozzle with a pressure of about 0.5Mpa. The cooling water temperature is below 35℃, and the water volume can be passed through the shut-off valve. To adjust. As a result, the temperature of the cast aluminum liquid is gradually cooled from 700°C to 710°C and solidified into an aluminum ingot with a temperature of 480°C to 520°C.

A na-achụpụ ingot siri ike na wiil kristal site na ingot ejector wee zipụ ya n’akụkụ àkwà mmiri nso. Ngwaọrụ wheel nke pinch na-ejigide eriri igwe nke ọma na wheel na-egbuke egbuke iji gbochie mmiri mmiri aluminom ịpụpụ. A na-eji ngwaọrụ wiil ntuziaka na-emezigharị ma gbanwee ntụziaka nke eriri ígwè na ogologo nke oghere ọkpụkpụ. Enwere ike ịhazi ya n’ime ebe ụfọdụ. A na-edozi esemokwu na mkpakọ nke eriri ígwè ahụ site na cylinder ahụ, ka e wee nwee ike ịnọgide na-enwe mgbagwoju anya nke eriri ígwè na ụfọdụ esemokwu. Iji mee ka mwepu nke aluminom ingots dị mfe, a na-ejikwa igwe na-eme ihe nkedo na-aga n’ihu na-enwekwa wiil kristal, ngwaọrụ nchara mmanụ na ngwaọrụ ihicha igwe. Ebe ọ bụ na usoro ahụ dum na-aga n’ihu, na ihe atọ nke nkedo okpomọkụ, ọsọ nkedo, na ọnọdụ jụrụ oyi na-achịkwa nke ọma, enwere ike ịnweta ingots ogologo ogologo.

A na-eji ọla ọcha na-acha ọla kọpa (Ag-T2) mee wiil kristal , na nhazi nke wheel wheel na-eme ka ike dịkwuo mma, nke nwere ogologo ndụ karịa wiil kristal mbụ. Ihe mkpuchi nke etiti ahụ na-eji akwa mkpuchi silicon carbide refractory siri ike, nke siri ike ma na-adịgide adịgide ma na-ewepụ mmetọ nke abụọ nke mmiri mmiri alumini nke ihe mgbagha n’oge gara aga. Na na nkwụsị nke launder na etiti etiti, a na-eji duct maka ntụgharị. Ihe nkedo mmiri aluminom na-anabata nkedo kwụ ọtọ nke 12-point, nke nwere ike ime ka mmiri mmiri aluminom banye n’ime oghere crystallization nke ọma, na-enweghị ọgba aghara na ọgba aghara, ma debe akwa na-ehicha akwa na etiti etiti. A naghị ebibi ihe nkiri oxide nke dị n’elu aluminom dị n’ime, na-ebelata re-inhalation na oxidation nke aluminum a wụrụ awụ, na-egbochi ihe nkiri oxide ịbanye n’ime oghere nkedo iji mepụta slag ọhụrụ, si otú ahụ na-eme ka mma nke ingot na aluminom dịkwuo mma. mkpanaka.

B, continuous rolling mill

Aluminom alloy nwere ike na ike dị elu karịa aluminom nkịtị, na ike ịgbagharị ya n’oge mpịakọta dịkwa ukwuu karịa nke aluminom nkịtị. Nnukwu ike na-akpụgharịgharị bụ akụkụ dị ịrịba ama nke mkpanaka alloy aluminum akpọrepu.

It is composed of 12 racks and is specially designed and manufactured for the production of aluminum and aluminum alloy rods.

There is an active feeding mechanism at the entrance of the rolling mill. The continuous rolling mill is composed of 2 sets of independent transmission two-roll special stands and 10 sets of Y-shaped three-roll stands driven by a main motor and a gear reducer. The nominal roll diameter is Ф255mm, and it is a horizontal machine. There are 1 pair each for the frame and vertical roller frame, 10 pairs of Y-frames have 5 pairs of upper transmission and 5 pairs of lower transmission, which are arranged alternately on the left and right. The second roller adopts the arc circle and one circle system pass, and the three roller adopts the arc triangle and one circle system pass. Two independent racks are driven by 55 and 45kw AC motors through a pin-vibration reducer, and 10 Y-shaped three-roller racks use 280kw DC motors to transmit power through the shaft coupling and the main shaft of the transmission gear box.

Enwere njikọ gia nchekwa na njikọ dị n’etiti igbe nha nha nnyefe na etiti ahụ, a na-ebipụkwa ntụtụ nchekwa mgbe oke ibu iji chebe gia na ogwe dị na etiti ahụ. Otu ụzọ abụọ nke ọ bụla nwere ihe nchekwa ụzọ mbata na ọpụpụ n’ihu na azụ. Ọnụ ụzọ nke ọnụ ụzọ nke ọnụ ọgụgụ ọbụna na-anakwere onye nche nduzi na-atụgharị, na ọnụ ụzọ nke ọnụ ọgụgụ dị iche iche na-eme ka onye na-atụgharị ihe na-atụgharị, bụ nke kwekọrọ na mpempe triangular na-apụta na nke gara aga, ma nwee oghere kwesịrị ekwesị. Ntuziaka na ngwaọrụ nchekwa arụnyere na ọpụpụ nke etiti ahụ na-ewere usoro Huff. Ozugbo ihe mberede mkpokọ mere, a ga-awụpụ ọkpọkọ ahụ ka ọ ghara igbochi okpokolo agba. Awụnyere ngwaọrụ akpaaka na-adọba ụgbọala n’etiti etiti na okpokolo agba.

Enwere ike imezi obere oghere nke roller n’akụkụ nke ọ bụla site na shims, na mpempe ngbanwe nke nwere oke dị iche iche dị n’ụdị Huff, nke mere na enwere ike dochie shims na-enweghị ihichapụ ihe niile na-edozi ihe anọ ahụ. Oke mgbanwe bụ ± 0.5mm.

The main box gear adopts high-precision gears with low noise and long life. The internal structure of the stand is made of aluminum alloy rolling mill high-strength components, and the roll material is H13 . The rolls, gears, and shafts are all upgraded with high strength, and the service life is long. Both the oil lubrication system and the emulsion lubrication system are dual systems, which can easily and quickly eliminate emergency accidents.

C, Aluminom alloy conic mmiri juru n’ọnụ ụdị igwe anaghị agba nchara

Ngwa aluminom alloy conic mmiri juru n’ọnụ ụdị mmanụ na-enweghị ndu loop na-akpụ ngwaọrụ bụ ngwaahịa emelitere na ndabere nke patented conic mmiri juputara igwe n’ụdị igwe anaghị emepụta mmanụ. Ngwaahịa a nwere ikike dabara adaba maka mkpanaka A2-A8 aluminom na mkpanaka aluminom iji mepụta mkpanaka ndu na-enweghị mmanụ. Atụmatụ pụtara ìhè abụrụla nhọrọ mbụ maka ndị ọrụ nke aluminom ọhụrụ na aluminom alloy na-aga n’ihu nkedo na ahịrị mmepụta.

Ihe karịrị 50 mbụ aluminom nkịtị na-aga n’ihu nkedo na ahịrị mmepụta ka agbanweela nke ọma ka ọ bụrụ mgbanaka ndu mmanụ na-enweghị conic nke jupụtara na mmiri, nke nwetagoro otuto nke ndị ọrụ. Anyị enwetala mkpanaka ndu na-enweghị mmanụ n’ime usoro niile, egwu na-agba ọsọ, ụdị swing, na ịmanye mgbanwe nke isi ihe ọ bụla n’ime mkpanaka ndu igwe jupụtara na mmiri conic. Nkwalite na nkwalite ezubere iche, ihe owuwu dị elu na-edozi nsogbu 5 isi: 1. Ogwe ụzọ adịghị mkpa bọta; 2. A na-ebupụta mkpanaka gbajiri agbaji na-akpaghị aka na-egbochighị mkpanaka; 3. Ụzọ ịgba ọsọ niile enweghị ntụpọ; 4. Ọdịdị ọhụrụ ahụ na-eme ka aluminom na-eme ka ọkpụkpụ mkpanaka na-emepụta ike na-emepụta ihe na-eme ka ọ dị mma na-eme ka ọ dị mma (A2-A8); 5. Belata nsogbu siri ike na nro nke mkpanaka aluminom n’èzí loop.

The final process of the primary aluminum all-gold rod continuous casting and rolling production line is to pass the rolled aluminum all-gold rod through the lead rod, quench it, actively traction, and wrap the rod into a circle into a frame. The main structure of the original lead rod is: small arc roller sharp rise + straight pipe and water bag combination + drying system + head roller arc + host traction + winding rod and frame + auxiliary pipeline cooling water system, which is generally active Traction method. The aluminum alloy conic water-packed roller type lead loop forming device adopts a passive type. After the rolling mill is out of the rod, the aluminum alloy rod or aluminum rod enters the conic water-filled roller type oil-free lead rod loop forming device through the bell mouth of the guide rod. The moving aluminum rod or aluminum rod drives the rollers in the lead pipe to rotate all the way to carry it forward. The main structure is: quadratic curve water bag roller combination system + water bag combination + drying system + new-style head roller arc assembly + round rod forming ring frame + emulsion and cooling water input and output dual-switching pipelines The system adopts non-active traction mode.

Aluminom alloy quadratic curve mmiri juru n’ọnụ roller-ụdị mmanụ-free ndu mkpara loop akpụ ngwaọrụ, agbakwunyere mmiri ọkpọkọ, nloghachi ọkpọkọ, ịgbanwee igbe, imewe Ọdịdị bụ ma emulsion na jụrụ mmiri ntinye na mmepụta dual-switching ụdị, iji ghọta. mkpanaka aluminom nkịtị na mkpanaka aluminom na-arụpụta ọrụ abụọ. Mgbe ị na-emepụta mkpanaka aluminom nkịtị, mechie valvụ usoro mmiri inyeaka, mepee valvụ sistemu emulsion, wee jiri pipeline emulsion igwe na-agbagharị wee banye n’ime ọkpọkọ mmiri dị elu, na mgbanaka alaka ahụ na-agbanarị nke ọma n’ime akpa mmiri conic tube. ngwaọrụ maka nkewa Ịjụ oyi na mmanu mmanu, enwere ike ịhazigharị ọsọ ọsọ na ntanetị. The n’elu emulsion aga azụ n’ime isi nloghachi ọkpọkọ, eruba n’ime emulsion uzo site kewara emulsion valvụ na ịmafe igbe, na ike na-emepụta nkịtị aluminum mkpara. Mgbe ị na-emepụta mkpanaka alloy aluminum, mechie valvụ sistemu pipeline emulsion inyeaka, mepee valvụ sistemu mmiri jụrụ oyi, mechie valvụ nke kewara emulsion, mepee valvụ emulsion drain na njedebe mmiri mmiri dị elu, kpochapụ emulsion fọdụrụ na ọkpọkọ mmiri dị elu. ma mechie ngbanwe ngbanwe A na-ejikọta tank ahụ na valvụ emulsion diversion, na mmiri jụrụ oyi na valvụ laghachi na-atụgharị iji mepụta mkpanaka alloy aluminum.

The disadvantage of active traction, the active traction system needs to track the speed of the main engine and perform speed matching control. The line speed of the active traction wheel should be slightly faster than the line speed of the final rolling stand of the main machine, otherwise the meaning of active traction will be lost, but the line speed of the active traction wheel is not synchronized with the line speed of the final rolling stand of the main machine, so it is continuous in the aluminum The surface of the rod is slipped and gnawed. At the same time, the aluminum rod is subjected to the combined force of traction and self-gravity in the guide tube, causing the aluminum rod to continuously swing up and down to scrape the tube wall. Due to the low strength of the aluminum rod, the surface of the aluminum rod was scratched and scratched by the active traction wheel. Therefore, in all production lines with active traction system, even if many users adopt the method of adding butter rod, a large amount of needle-shaped aluminum chips can be seen under the active traction wheel.

Ebumnuche mbụ nke ịnakwere usoro traction na-arụ ọrụ bụ n’ihi na ọ na-esiri ike ịgbanye mkpanaka aluminum alloy na gburugburu n’ihi ike ya dị elu. A na-anakwere ike traction na-arụ ọrụ iji mee ka ọ gafee n’isi isi. Na mmepụta n’ezie, isi ihe na-agbagharị agbagharị agbagoro agbagoro adịghị adị mfe iji na mmepụta nke mkpanaka aluminum nkịtị. Ọtụtụ ndị ọrụ atụpụrụla isi mgbagharị okirikiri agbagoro agbarụrụ. A na-agbanwe isi klọb ka ọ bụrụ isi aluminom nkịtị iji mepụta mkpanaka alloy aluminom nke na-adịchaghị elu. Ọ bụghị naanị na aluminom alloy mkpara nwere ike apịaji n’ime okirikiri, ma mmetụta dị nnọọ mma. Enwere ike ịhụ na ọ dịghị mkpa maka ahịrị mmepụta ihe nke aluminum alloy iji nweta usoro traction na-arụsi ọrụ ike, na mmepụta n’ezie, ndị na-emepụta na-eji isi isi na-agbagharị aluminom nkịtị. Ma ahịrị mmepụta ihe na-emepụta aluminum alloy na ahịrị mmepụta nke aluminom nkịtị kwesịrị ịnakwere usoro ụzọ ụzọ na-agafe agafe dị ka nke kachasị mma, nke na-abụghị nanị na-echekwa ọnụ ahịa nke usoro traction na-arụ ọrụ na usoro njikwa kwekọrọ, ma ọ dịghịkwa eme ka elu nke mkpanaka aluminum. a ga-akpụcha ya mgbe ị na-emepụta mkpanaka aluminom nkịtị.

Aluminom alloy conic water bag roller type oil-free lead loop kpụrụ ngwaọrụ mejupụtara: aluminum alloy conic curve water bag roller type lead rod integrated system, roller head swing system, random mapụtara, mmiri na-enye usoro, mgba ọkụ igbe, valvụ, na-afụ usoro. , chọrọ ịrị elu ubube na anọ ogidi n’elu ikpo okwu, pụrụ iche kenha worm gia reducer maka winding mkpanaka, moto Y112M-4 4kw 1440r / min B5, retractable okpukpu abụọ etiti, mobile trolley na track, electronic akara.

D , usoro njikwa ọkụ eletrik

The electrical system is powered by a three-phase four-wire 380V, 50Hz, low-voltage network, and the total power of the equipment is about 795kw. Among them, the 280kw DC motor is controlled by Siemens DC speed regulating device, which has strong protection characteristics and fault diagnosis function. The casting machine motor, independent transmission frame motor and rod winding machine motor are AC motors, which are controlled by Siemens AC frequency conversion speed control unit. Intermediate relays and AC contactors below 32A use Siemens 3TB series, air switches below 25A use Siemens 3VU1340 series, and the rest are selected from well-known domestic manufacturers. The PLC uses Siemens S7-200 for programming, and the touch screen uses Eview 10.4-inch man-machine interface color touch screen digital control. Various operating parameters are centrally monitored and displayed. Process parameters can be set, modified, and displayed through the man-machine interface. The electric control cabinet should be placed in a dedicated power distribution room, and only the rolling mill operation table, casting machine operation table and pole winding machine operation table should be placed on the production site, and the junction box of the pump unit should be placed near the pump unit. The whole unit is easy to operate and convenient to maintain. In terms of casting speed, rolling speed and traction speed, the linkage matching program can be set electrically to ensure the synchronization of the production line and fine-tuning during operation, making the operation simple and convenient.

F. Akụkụ nke onye zụrụ ya

1. Igwe ọkụ na-agbaze, na-ejide ọkụ na akwa akwa.

2. Usoro mgbasa ozi mmiri jụrụ oyi nke kristal wheel nke igwe nkedo, usoro mmiri na-enye mmiri maka okpomọkụ mgbanwe mmiri nke chiller nke unit (gụnyere mgbapụta mmiri jụrụ oyi, mgbapụta mmiri na-agbapụta mmiri, ụlọ elu jụrụ oyi, valvụ na). pipeline, wdg).

3. Nye njikọ wires na eriri site na isi ike netwọk na ngwá ọrụ eletriki akara kabinet, eletriki akara kabinet na fuselage akara ebe, na eletriki akara kabinet.

H. Ike igwe mgbakọ maka mkpanaka aluminom na-aga n’ihu nkedo na igwe igwe igwe: