Technology of production of wares from PVC
The production of wares from PVC is broken on a few basic production areas:
- area of purveyance
- area of welding of wares
- area of zachistki of corners of wares
- area of setting of impostov and uplotnitel'noy rubber
- area of setting of furnitury
- area of setting of prepared stekklopaketov and final regulation
of wares
Area of purveyance
On this area the followings operations are made:
Cutting of reinforcing type. Reinforcing type of narezaetsya on purveyances in obedience to the form of order, which are marked and set in the special pyramid so that to provide free access to them.
Cutting of purveyances of PVC is made in obedience to the form of order taking into account a supply on welding 5-6 мм. (pripusk on welding is a parameter, depending on tuning of welding machine-tool and can be in limits from 2,5 to 3 mm on a side).
Frame and stvorochnyy types of narezayutsya under the corner of 45°.
Impost of narezaetsya under the corner of 90° taking into account a supply on ledges from every side, for 2,5 - 6 mm on a side.
Milling of all of the necessary openings is in the purveyances of PVC, namely drainage and vent openings (see appendix 1), openings under setting of basic constipation, openings under the larva of lock on entrance doors.
Milling of butt ends of impostov.
Setting of necessity on length of reinforcing type in the purveyances of PVC, in obedience to marking on a type.
Fixing of reinforcing type samorezami with burgolovkoy 3,9 kh 16 (3,9 x 19) мм. Samorezy is set in obedience to an appendix 2 (to diminish the amount of samorezov impermissible).
Blowing out of purveyances of types by the compressed air.
It is necessary to mark that quality of the produced wares is mortgaged already on the area of purveyance.
Types, utillized for cutting of purveyances, must not have damages.
Protective tape must not have damages.
The overall sizes of section of type must fully correspond the table of possible rejections of types. To apply in the production of wares from PVC types, having rejections in sections impermissible. On every production entrance control of quality of types must be organized.
Area of welding of wares from PVC
Welding of types is made through the special machine-tools. Welding machine-tools can have one, two, or four welded heads. Most productive is a machine-tool with four welding heads, as a process of welding of good takes a place for one cycle. On a dvukhgolovochnom machine-tool, welding takes a place for two cycles, and on odnogolovochnom accordingly for four cycles. In the process of welding it is necessary strictly to maintain the necessary terms of welding:
Temperature of the welded knife 230 - 250 °С.
A surface of knife must be clean.
Teflonovoe coverage of knife is wiped a clean cotton or paper towel every hour, on «hot», without the use of solvents.
Time of warming-up of stitch is 25 - 40 secs.
Time of welding of stitch is 25 - 40 secs.
Before setting of purveyances on a welding machine-tool it is necessary to make sure in the cleanness of the welded surfaces, because greasing, dust, shaving of PVC or metal sharply
worsen quality of welding of corner.
A stitch must have a white color (darkening impermissible, because testifies that the temperature of heating of welding knife was overpriced or time of warming-up is overpriced).
A stitch must be even.
Purveyances must be boiled thoroughly on all of area of the welded surface.
Control of accordance of overall sizes of wares in obedience to the form of order.
Area of zachistki of corners of wares from PVC
Zachistku of corners of wares is conducted by hand or on the special machine-tool. At zachistke by hand apply a chisel with a narrow blade and
special knife of falcate form.
At zachistke of corners it is necessary to pay a regard to zachistnymi automats facial surfaces type, that their damage was not milling cutters.
An automatic machine-tool cleans out one corner simultaneously.
After completion of zachistnykh works and control of quality of zachistki, wares are set on the special bars of intermediate storage.
Area of setting of impostov and uplotnitel'noy rubber
In the system of Proplex impost joins through metallic system connectors (see appendix 3).
In the type of imposta art. PR 3.082 is present the special openings to which through two screws of 5 kh 40 (4 kh 40) mm join connector of imposta of PR V082. Sometimes at editing 25 mm apply samorezy of 4 kh, that weakens fastening of connector to impostu.
Razmetka of places of setting of imposta is made. It is necessary to mark that razmetku is conducted from one edge by frames and then control distance from other side of frame.
On the special conductor, opening is drilled under samorez of 5 kh 70 мм.
Impost with a connector is led into a frame and set strictly on razmetke.
The connector of imposta registers to the frame type through 4th samorezov of 4 kh 25 мм.
In the beforehand drilled opening in a frame type samorez of 5 kh is wrapped up 70 мм.
It is necessary to pay a regard to to, that during setting of impostov in a frame type with reinforcing art. 207, four timber samoreza will vvorachivat'sya only in a plastic. For reliability of fastening additional krepezh of connector of imposta is used samorezom of 5 kh 70 мм. In the case of setting of imposta in a leaf or on impost four timber samoreza of 4 kh 25 mm is twisted in in a metallic reinforcing type. In this case additional krepezh of 5 kh 70 mm is not required.
If impost is set correctly, perekhodt' follows to setting of uplotnitel'noy rubber.
Setting of uplotnitel'noy rubber
A compression in a stvorochnoy construction is made the single piece of uplotnitel'noy rubber. Immersion of compression in a slot must begin in the middle of overhead cross-beam of construction. Uplotnitel'naya rubber by hand is led in a receiving slot so that there was not his tension. Stykuetsya uplotnitel' through the special glue (A, C).
Uplotnitel' on leaves (art. 227) is additionally glued up on corners. In the construction of window with impostom in the case of leaf in a frame the profrezerovat' opening (it is possible to apply a chisel or hand milling typewriter) is needed additionally in the place of joining of imposta (В). Uplotnitel' art. 227 put without breaks, by a whole piece. In the case of the deaf glazing uplotnitel' is used art. 255 or 254, which it is assumed stykovat' (А). Then in the places of connection of imposta with a frame, milling openings is not required. On a joint uplotnitel' also prokleivaetsya the special glue.
Here make boring of openings for smoothing of pressure. Openings are drilled on a conductor in overhead horizontal part of frame in the butt end of naplava and lateral part of pritvora on the inside. See appendix 1.
Area of setting of furnitury
On this area make setting of necessary furnitury in obedience to the form of order. In a general view it looks approximately so:
On a leaf angular switches are set, spoiling connectors middle constipations which are fastened samorezami of 4 kh 25 мм.
Basic constipation is chopped off under a necessary size by a pneumatic guillotine.
The deck-house of traction of furnitury of firm Roto is made in different planes with displacement lower sending in relation to overhead one. Simultaneously with a deck-house there is an opening hasp under timber samorez in the overhead sending. Before chopping off a worker must exactly otmerit' the size of leaf on fal'tsu and set this size on a scale line by shibera. An error in measurings results in marriage!
Basic constipation is set on a leaf and 25 мм. is fastened samorezami of 4 kh All of types of furnitury have the special fixings, retaining position of furnitury in neutral position initially. It is necessary in order that during editing all of component parts of furnitury correctly stykovalis' between itself. Fixings break away at the first turn of pen. However much a worker before editing must check up the rightness of location of parts of furnitury.
Scissors on a leaf are chopped off under a necessary size, by a pneumatic guillotine, set on a leaf and 25 мм. is fastened samorezami of 4 kh
If a leaf higher 800 mm on fal'tsu (furniturnomu vrezu), setting of additional clamp of leaf is required between an overhead and lower loop. In furniture of Roto for these aims middle constipation is utillized. Tiporazmer of middle constipation beforehand sneaks up depending on the height of leaf.
For the correct positioning of position of leaf in relation to a frame the special sending is used art. 199. Sending is snapped to into a frame for 2 to the thing in every corner and then a leaf is inserted in a frame. Application of sending allows rudely to estimate the rightness of making of leaf and frame. If a leaf dangles,, probably, it is done less necessary size or frame done more necessary size. If it is impossible to insert a leaf in a frame, it talks about the reverse phenomenon: frame less than or a leaf anymore.
On the leaf of turning-folding window, through a template, part of lower loop is set and 40 mm is fastened long samorezami of 3.9 kh (at a turning leaf - part of turning leaves). More long samorezy is used because they are twisted in only in a plastic. Samorezy must at least get through two partitions of plastic. Length of samoreza of 3.9 x 25 mm in this case is not enough. (See appendix 4)
On a frame the overhead and nizhnyaya is set petli which 25 мм. is fastened samorezami of 4 kh
A leaf and frame unite in a single construction.
On a frame all of necessary return parts are set.
Visual quality of setting of furnitury control.
Functional verification of furnitury is must work without jammings and jerks.
Distance between the facial surface of frame and leaf is checked up equal 16,5 мм. Clutched between a leaf and frame a paper sheet must not be easily taken out.
Area of setting of prepared stekklopaketov
Setting of steklopaketov in wares from PVC is made accordant TU. Final regulation of leaves is made on the special stand. A stand allows to imitate the terms of the real setting of window in opening. Thereon the stage it is necessary to conduct general control of quality of making of wares.
Functional setting of linings under steklopakety
Linings under steklopakety are intended for the following.
To distribute weight of steklopaketa, even thus loading on a frame, and additionally to eliminate undesirable tensions, arising up from the overfall of temperatures, external environments et cetera.
To prevent possibility of otzhima of leaf at its breaking.
To eliminate the undesirable contact of steklopaketa from a fal'tsem frame or leaf.
Technology of regulation of leaves during setting of steklopaketov
In a leaf set linings for smoothing of fal'tsa art. 171 in those places, where linings will be set under steklopaket, in the distance 5 see from the corners of steklopaketa. Steklopaket is set in the leaf of window on two linings in thick for 5 мм. №1 and №2. We even position of steklopaketa in opening of window through an assembling shoulder-blade and set linings №3 and №4 in thick for 5 mm each. We take out lining №2, thus weigh weight of steklopaketa will pass to lining №1. We deblock a pen and check up the capacity of leaf.
It is necessary at sagging of leaf:
To insert an assembling shoulder-blade between a fal'tsem frame and astride steklopaketa.
Pressing on steklopaket to move the top of frame upwards and to set lining №6 necessary thickness.
To check up work of leaf and if necessary to change a lining thickness №6.
At the height of leaf more than 1,3 m it is necessary to set the additional controlled from distance linings №7 and №8. During their setting the thickness of linings sneaks up such, that a bend
of vertical parts of leaf was not.
All of linings are fixed the two-bit of silicon germetika. It is necessary in order that there was not displacement of linings during setting of shtapikov and transporting.
After setting of shtapikov without fail must "besiege" the kapron hammer of part of leaf. All of operations on regulation of leaves make in vertical position on a stand, on an object - after editing of good in opening. Linings are set on 50 - 70 mm from an internal corner on fal'tsu, at the width of leaf it is more than one meter possible to displace linings to 250 mm from an internal corner on fal'tsu.
Into places of setting of the bearings and controlled from distance linings linings are set for smoothing of fal'tsa art. 171.  Steklopaket is set on the bearings linings №1 and №2 in 5 мм. thick
An assembling shoulder-blade is even position of steklopaketa in opening of frame.
Pick up necessary thickness the controlled from distance linings №3 and №4.
At glazing of deaf constructions with horizontal impostom it is necessary to pass weight of overhead steklopaketa on framework of building through linings and lower steklopaket. For this purpose from above lower steklopaketa it is necessary to put the additional linings №5 and №6.  Regulation of clamp of leaves is furnitura of Roto (see appendix 5).
After final regulation of leaves and conducting of general control of quality of making of good inspector OTK, good leaves on storage of the prepared products. In the case of making of good from the coloured or laminirovannogo plastic it is necessarily packed in a cardboard.
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