RU2294283C2 - Compensation pad for molding device and method of its making - Google Patents

Abstract

FIELD: molding.

SUBSTANCE: compensation pad comprises one rigid frame made of rigid sheet and at least two shock-absorbing flexible layers coated with an adhesion agent. The sheets are perforated to produce projections directed away from the two planes of the sheet.

EFFECT: enhanced durability.

7 cl, 3 dwg, 2 tbl, 3 ex

Description

The invention relates to press compensation pillows and a method for their manufacture.

Press compensation cushion is used in pressing in the molding press in the manufacture of high-pressure HPL plastics - foil and non-foil dielectrics, fiberglass, getinaks in electrical, chemical production, in the pressing of multilayer printed circuit boards in electrical, radio, electronic and other industries, as well as in pressing laminated materials in the construction and furniture manufacturing [1, 2, 3, 4, 5, 6, 7].

Known press compensation cushion for forming press [5] multilayer construction, consisting of a rigid frame and at least two shock absorbing layers made of the reaction mixture.

The known composition of the reaction mixture for the manufacture of press compensation pillows for forming press [6].

A known method of manufacturing a press compensation cushion for a forming press [7], where they carry out: the manufacture of a reaction mixture consisting of eight components that must be prepared in advance: to weigh, split on runners, fluff in a disintegrator, load into a mixer, heat rubber and load also in mixer, manufacture of a rigid perforated frame onto which the reaction mixture is applied [6] and the web of the press compensation pillow is formed by roll pressing, then The thickness of the web is cut to a predetermined size, heat treated and packaged.

The disadvantage of this method of manufacturing a press compensation pillow is that the process of manufacturing the reaction mixture is intermittent, multi-operation and time-consuming, requires certain production areas, labor, many interoperational equipment, raw materials are used.

SUMMARY OF THE INVENTION

An analogue of the press compensation pillow and the method of its manufacture are:

"Compensation press pillow for forming press" - patent for invention No. 2235642.

"The composition of the reaction mixture for the manufacture of press compensation pillows for forming press" - patent for invention No. 2220848.

"A method of manufacturing a press compensation cushion for forming press" - patent for invention 2235643.

The technical result of the invention is a multi-layer press compensation pillow for a forming press and a method for its manufacture.

The press pad consists of damping material and meets all the requirements for a press pad:

- uniform thickness over the entire area,

- high elastic properties,

- increased wear resistance,

- high thermal conductivity,

- the ability to evenly distribute temperature and

pressure during the pressing of HPL high-pressure plastics - dielectrics, multilayer printed circuit boards, as well as laminated materials in the molding press in the construction and furniture industries.

The operating mode of the press pad:

pressing temperature - up to 400 ° С

specific pressure is 10-120 kg / cm ² .

The essential features of a press compensation pillow are:

the presence of a multilayer structure, characterized in that:

consists of at least one rigid frame, perforated in such a way that the perforation protrusions are directed on both sides of the sheet plane, provide additional springing properties to the rigid sheet, facilitate the fastening of the elastic layer and prevent its displacement along the surface of the sheet, and at least two shock-absorbing elastic layers;

the use of perforation with round holes with a diameter of 0.8-1.0 mm, makes it possible to perforate steel, copper or aluminum foil with a thickness of 35-200 microns, which makes it possible to produce thinner and more flexible press pads for pressing multilayer printed circuit boards;

the elastic layer of the press pad is formed of heat-resistant latex paper;

the presence in the elastic layer (latex paper) as a fibrous heat-resistant reinforcing filler or asbestos of chrysotile, or basalt, or kaolin, or chemical heat-resistant fibers - carbon fiber, aramid fiber, fiberglass or their waste, or bast fibers increases the heat resistance of the pillow and increases its temperature operation in a forming press up to 400 ° С;

the use of silicone or teflon liquid as a release coating increases the heat resistance of the press pad and allows the pad to be operated at temperatures up to 400 ° C;

the presence of antioxidants in latex paper improves the mechanical properties of the pillow and increases its resistance to heat, light, which increases its wear resistance;

the presence of an odorant in latex paper improves the sanitary and hygienic parameters of the pillow, since during its operation there is no emission of an unpleasant odor;

in addition, the rigid frame consists of a hard sheet of high thermal conductivity selected from the group including steel, aluminum, copper and their alloys;

steel or other hard sheet with a thickness of 0.035-2.00 mm is used as a frame;

there is a connection between the elements of a multilayer structure:

the rigid frame is pressed into an elastic layer (latex paper) coated with a release layer;

the presence of a geometric shape: the finished press pad is a rectangular product with a length of up to 2500 mm, a width of 1100-1800 mm, a thickness of 0.5-3.5 mm, a weight of 1 m ² with a thickness of 1.5 mm is 3.8 kg.

Salient features of a method of manufacturing a press compensation pillow for a forming press, characterized in that:

make a rigid frame, cover the frame with latex paper to form an elastic layer of the web of the press pad, calibrate the thickness of the press pad, apply a release layer, transverse cut the web of the press pad;

in addition, the rigid sheet of the frame is subjected to perforation, directing the protrusions of the perforation on both sides of the plane of the sheet, providing the rigid frame with additional springing properties;

use perforation protrusions for mounting latex paper on the surface of the rigid frame;

perforation holes can be rectangular or round, the overall dimensions of the perforation holes:

rectangular shape - length 1.0-1.7 mm, width 0.8-1.0 mm

round shape - hole diameter 0.8-1.0 mm,

while the holes are placed 13-16 pieces per 1 cm ² ;

in addition, to form an elastic layer, a rigid frame is wrapped in latex paper, followed by pressing between the shafts;

composition of latex paper for the manufacture of an elastic layer of a press compensation pad, which as a binder contains heat-resistant latex with vulcanizing additives, a fibrous filler, a powder filler with a ratio of components, in wt.%:

binder 5.0-25.0 fiberfill 10.0-40.0 powder filler 60.0-75.0 vulcanizing group 8.0-36.0

the composition of latex paper, which contains an odorant and antioxidant to improve performance in quantities of not more than 0.25% by weight of latex;

in addition, in the composition of latex paper, in which as a binder it contains heat-resistant latex or acrylic, or butadiene methyl styrene, or butadiene nitrile, or fluororubber, or siloxane, or butadiene styrene, or nitrile, or triple ethylene propylene;

in addition, as a heat-resistant reinforcing fiber filler, latex paper contains either chrysotile asbestos, or basalt fiber, or kaolin fiber, or heat-resistant chemical fibers — carbon fiber, aramid fiber, fiberglass or their waste, or bast fiber, or their waste, or waste textile industry - tows of heat-resistant fibers;

in addition, as a heat-resistant powder filler, latex paper contains either red minium iron, or barite, or aluminum oxide, or kaolin, or burnt magnesia, these substances improve the technological properties of latex paper - heat resistance, roll resistance when lining the frame;

in addition, in the composition of latex paper as an odorant - a fragrant substance to eliminate the unpleasant odor emitted during pressing, it contains either satalidol, or musteron, or cedron, or veroton, or vernicola, or myrcenal, or iron, or geraniol, or others odorants depending on the heat-resistant latex applied;

the latex paper also contains an antioxidant or diafen FP, or Santoflex IP, or a product - 401 N, or quinol ED, or other antioxidants, depending on the heat-resistant latex applied;

apply a release layer on the installation of applying a release layer by spraying from nozzles.

Other characteristics

The press cushion has excellent mechanical properties: it is lightweight, perfectly cut and cut to the required dimensions without delamination at the ends using conventional technological equipment, technological holes are easily punched and drilled on a drilling machine, the molten resin that forms when thermosetting resins are pressed does not adhere to its surface , has a smooth surface and can be used when pressing in the automatic mode of operation of forming presses, where the laying and removal of the pillow occurs m mechanically with the help of vacuum suction cups, it perfectly withstands cyclic multiple pressure of a hydraulic press, evenly distributes the pressure and temperature from the press plates over the entire pressing surface and restores its elastic properties after depressurization, is able to absorb and compensate for the uneven pressing force, temperature and thickness of the pressed material, caused by insufficient accuracy of the efforts of the press mechanism, there is no "frame" effect when pressing products of various Lina and width, gives press object only increased quality. The output of finished products increases by improving its quality.

Summary of figures.

Figure 1 is a cross section of a press pad manufactured by the method described in this invention.

Figure 2 is a cross section of another type of press pillow made by the method described in this invention.

Figure 3 is a cross section of another type of execution of the press pillows made by the method described in this invention.

A method of manufacturing a press pad

The technological process of a method of manufacturing a press cushion is a set of technological operations that establishes the sequence and procedure for performing technological operations of manufacturing a press cushion.

1. The list and sequence of technological operations:

- manufacture of a rigid frame;

- lining the frame with latex paper;

- applying a release layer and calibrating the thickness of the cushion web;

- transverse cutting of the web of the press pad.

2. Materials used for the manufacture of press pillows.

Table 1 shows a list of feedstock and reagents used in the manufacture of press pillows.

Table 1 Name Appointment Steel or copper or aluminum sheet with a thickness of 0.035-2.00 mm wide 1100-1800 mm For making a hard cushion frame Heat-resistant latex paper with a width of 1100-1800 mm, a thickness of 0.2-1.5 mm For forming an elastic layer Silicone fluid or teflon fluid For applying a release coating

3. The mode of the technological process of manufacturing a press pad.

Table 2 shows the mode of the manufacturing process of the press cushion.

table 2 the name of the operation Units Indicator one 2 3 1. The manufacture of a rigid frame: - the speed of the steel tape, no more m / s 1,2 - number of holes per 1cm ² pieces / cm ² 13-16 2. Covering the frame with latex paper: - the speed of the steel tape, no more m / s 1,2 3. Application of a release layer: - layer thickness mm 0.02-0.05 - speed of movement of a cloth of a pillow, no more m / s 1,2 4. Cutting the pillow blade into sheets: - length, no more mm 2500 - thickness mm 0.5-3.5

Hard frame manufacturing

The frame of the press pad consists of one or two rigid sheets, which have high thermal conductivity.

The most preferred materials for this are (sheet steel, copper, aluminum or their alloys, sheets of heat-resistant resins such as polyimide, polysulfone and others with metal fibers or metal powder. Thickness of the rigid sheet is 0.035-2.0 mm.

Steel for the manufacture of press pillows is used in the form of rolled sheet with a thickness of 0.25 mm, a width of 1100-1800 mm.

Using a drive trolley and a lifting device, a sheet of tin is put on the spindle bars of an unwinder equipped with a pneumatic drive. Unwind the tin from the roll by pulling rolls, the steel tape enters the roll feed of the perforating press. The press is equipped with a special stamp, the main working body of which are toothed combs. Combs are placed in the upper and lower halves of the stamp to obtain burrs on both sides of the sheet. Perforation protrusions are formed on both sides of the plane of the sheet, which gives the rigid steel sheet additional springing properties. The tin is pierced by serrated combs and the pulling rolls lead the perforated portion out of the perforation zone, feeding a new portion of the tin for perforation. The pulling rolls of the punch press are rubberized, which avoids the bending of the frame burrs.

The number of holes 13-16 pieces / cm ² .

Size: rectangular holes - length 1.0-1.7 mm, width 0.8-1.0 mm,

round holes - diameter 0.8-1.0 mm.

The speed of the steel tape is not more than 1.2 m / s.

Covering the frame with latex paper

For the manufacture of a press compensation pillow, latex paper with a thickness of 0.20-1.5 mm and a width of 1100-1800 mm is used.

After the press, the perforated sheet is pulled out using a correct exhaust device and fed to the calender, where paper is simultaneously fed from the rolls above and below. A press pad is made on a two-roll calender with a vertical arrangement of rolls. Calender rolls are characterized by the same diameters and speed. The press pad has a tight tolerance on thickness within one sheet - 0.1 mm. Therefore, the accuracy of the manufacture of rolls and assembly of rolls should be sufficiently high. The calender is equipped with a device for regulating the roll gap, since the thickness of the press pad depends on this, as well as devices that regulate the position of the perforated frame and latex paper. The assembly of the design of the press pad occurs during the joint compression (pressing) rolls of calender paper and frame. If it gets into the gap, the paper is pushed onto the burrs of the frame, and then, as a result of their bending, it adheres to the frame. When lining the frame is deformed and the paper is compacted. This must be taken into account when choosing the required paper thickness in the initial state and the thickness of the pillow after manufacture. The required thickness of the press pad is achieved by adjusting the calender clearance and the number of layers and the thickness of the latex paper used.

The thickness of the web of the press pad is 0.5-3.5 mm.

Speed of movement of a cloth of a pillow no more than 1,2 m / s.

In the case of the manufacture of a press pillow with two rigid frames, two unwinding devices are used, two machines for perforating the rigid frame in parallel and at the same time they are fed to the lining with latex paper, which is placed on top, bottom and between the rigid frames with three unwinding devices.

Application of a release layer

To reduce the adhesion of the press cushion to the steel cushion sheets during pressing in a forming press, a release release layer is applied to the outer surface of the elastic layer. After the calender, the cushion cloth enters the unit for applying the release layer, passes between the nozzles through which silicone or Teflon liquid is sprayed onto both surfaces of the cushion cloth. This layer, in addition to anti-adhesive properties, gives the pillow additional heat resistance.

Then calibrate the thickness of the cushion web with special rolls.

The thickness of the release layer is 0.02-0.05 mm.

Speed of movement of a cloth of a pillow no more than 1,2 m / s.

Cross cutting the web of the press pad

Next, the canvas enters the device for the transverse cutting of the pillow canvas into sheets of a given length. The finished press cushion is a rectangular product, 0.5-3.5 mm thick, 1100-1200 mm wide, up to 2500 mm long. The weight of 1 m ^{2 of a} press pad with a thickness of 1.5 mm is 3.8 kg.

The combination of technological operations, their sequential order and the conditions for their implementation ensure the manufacture of a press cushion that meets the requirements for a press cushion, namely: uniform thickness over the entire surface of the cushion, increased wear resistance, high elastic properties, high thermal conductivity, the ability to evenly distribute temperature and pressure throughout the volume of the press pad.

Description of a preferred method for manufacturing a press pad

Example 1

The press pad shown in FIG. 1 consists of one rigid frame (1), two elastic layers (2), a release layer (3), which is applied to the outer surface of the press pad.

Steel for the manufacture of a press pad is used in the form of sheet metal with a thickness of 0.22 mm and a width of 1100 mm.

Using a drive trolley and a lifting device, a sheet of tin is put on the spindle bars of an unwinder equipped with a pneumatic drive. Unwind the tin from the roll by pulling rolls, the steel tape enters the roll feed of the perforating press. The press is equipped with a special stamp, the main working body of which are toothed combs. Combs are placed in the upper and lower halves of the stamp to obtain burrs on both sides of the sheet. Perforation protrusions are formed on both sides of the plane of the sheet, which gives the rigid steel sheet additional springing properties. The tin is pierced by serrated combs and the pulling rolls lead the perforated portion out of the perforation zone, feeding a new portion of the tin for perforation. The pulling rolls of the punch press are rubberized, which avoids the bending of the frame burrs.

The number of perforation holes 16 pieces / cm ² .

The size of the rectangular holes: length 1.0 mm, width 0.8 mm.

The speed of the steel tape is not more than 0.9 m / s.

For the manufacture of press compensation pillows apply heat-resistant latex paper with a thickness of 1.5 mm.

After the stamping press, the perforated sheet is pulled out using a correct exhaust device and fed to the calender, where latex paper is fed from 2 rolls above and below at the same time. A press pad is made on a two-roll calender with a vertical arrangement of rolls. Calender rolls have the same diameters and speeds. The assembly of the design of the press pad occurs during the joint compression (pressing) of the rolls of the calender of paper and frame. If it gets into the gap, the paper is pushed onto the burrs of the frame, and then, as a result of their bending, it adheres to the frame. The required thickness of the web of the press pad is achieved by adjusting the calender clearance.

The web thickness of the fabricated press pad is 1.5 mm.

Speed of movement of a cloth of a pillow no more than 0,9 m / s.

After the calender, the cushion cloth enters the unit for applying the release layer, passes between the nozzles through which silicone fluid is sprayed onto both surfaces of the cushion cloth. This layer, in addition to anti-adhesive properties, gives the pillow additional heat resistance.

Then calibrate the thickness of the cushion web with special rolls.

The thickness of the release layer is 0.02 mm.

Speed of movement of a cloth of a pillow no more than 0,9 m / s.

Next, the canvas enters the device for the transverse cutting of the cushion canvas into sheets of a given length.

Press cushion (figure 1), manufactured by the described method, was tested in the manufacture of foil dielectrics at a temperature of 180 ° C and a specific pressure of 90-100 kg / cm ² and withstood more than 100 compacts without visible defects of the press cushion - delamination. Foil dielectrics meet the requirements of technical documentation.

The finished press pad is a rectangular product, 2.0 mm thick, 1100 mm wide, 1500 mm long.

Example 2

The press pad shown in FIG. 2 consists of two rigid frames (1), an elastic layer (2), a release layer (3). Steel for the manufacture of press pillows is used in the form of sheet metal with a thickness of 0.22 mm and a width of 1100 mm.

For the manufacture of a pillow with two rigid frames, two unwinding devices, two perforating dies, three rolls of latex paper are installed, the technological process for manufacturing two rigid frames of the press pillow is simultaneous and parallel, and their lining with latex paper runs simultaneously from three rolls - from the first from the bottom, from the second from above, from the third - between the frames.

The tin rolls are put on the spindles of the unwinding devices equipped with a pneumatic drive using a drive trolley and a lifting device. Unwind the tin from the roll by pulling rolls, the steel tape enters the roll feed of the perforating press. The press is equipped with a special stamp, the main working body of which are toothed combs. Combs are placed in the upper and lower halves of the stamp to obtain burrs on both sides of the sheet. Perforation protrusions are formed on both sides of the plane of the sheet, which gives the rigid steel sheet additional springing properties. The tin is pierced by serrated combs and the pulling rolls lead the perforated portion out of the perforation zone, feeding a new portion of the tin for perforation. The pulling rolls of the punch press are rubberized, which avoids the bending of the frame burrs.

The number of perforation holes 13 pieces / cm ² .

The size of the rectangular holes: length 1.7 mm, width 1.0 mm.

The speed of the steel tape is not more than 0.9 m / s.

For the manufacture of a press compensation pillow, 2 rolls of heat-resistant latex paper with a thickness of 1.5 mm for the outer layers and one roll of heat-resistant latex paper with a thickness of 1.0 mm for the inner layer are used, the width of the latex paper is 1100 mm.

After the stamping presses, the perforated sheet is pulled out using the correct exhaust devices and fed to the calender, where latex paper is fed from 3 rolls above and below and between the frames simultaneously. A press pad is made on a two-roll calender with a vertical arrangement of rolls. Calender rolls have the same diameters and speeds. The assembly of the design of the press pad occurs during the joint compression (pressing) of the rolls of the calender of paper and frame. If it gets into the gap, the paper is pushed onto the burrs of the frame, and then, as a result of their bending, it adheres to the frame. The required thickness of the web of the press pad is achieved by adjusting the calender clearance.

The web thickness of the fabricated press pad is 3.5 mm.

Speed of movement of a cloth of a pillow no more than 0,9 m / s.

After the calender, the cushion cloth enters the unit for applying the release layer, passes between the nozzles through which silicone fluid is sprayed onto both surfaces of the cushion cloth. This layer, in addition to anti-adhesive properties, gives the pillow additional heat resistance.

Then calibrate the thickness of the cushion web with special rolls.

The thickness of the release layer is 0.04 mm.

Speed of movement of a cloth of a pillow no more than 0,9 m / s.

Next, the canvas enters the device for the transverse cutting of the cushion canvas into sheets of a given length.

Press cushion (figure 2), made by the described method, was tested in the manufacture of foil dielectrics at a temperature of 180 ° C and a specific pressure of 90-100 kg / cm ² and withstood more than 100 compacts without visible defects of the press cushion - delamination. Foil dielectrics meet the requirements of technical documentation.

The finished press cushion is a rectangular product, 3.5 mm thick, 1100 mm wide, 1500 mm long.

Example 3

The press pad shown in FIG. 3 consists of one rigid frame (1), an elastic layer (2), a release layer (3), which is applied to the outer surface of the press pad.

For the manufacture of a rigid frame of a press pillow, copper foil is used in the form of a roll 100 microns thick and 1100 mm wide.

Using a drive trolley and a lifting device, a copper foil roll is put on the spindle bars of an unwinder equipped with a pneumatic drive. Unwind the foil from the roll by pulling rolls, the copper tape enters the roll feed of the perforating press. The press is equipped with a special stamp, the main working body of which are toothed combs. Combs are placed in the upper and lower halves of the stamp to obtain burrs on both sides of the sheet. Perforation ledges are formed on both sides of the plane of the sheet, which gives the rigid copper sheet additional springing properties. The foil is pierced by serrated combs and the pulling rolls remove the perforated portion from the perforation zone, supplying a new portion of the foil for perforation. The pulling rolls of the punch press are rubberized, which avoids the bending of the frame burrs.

The number of perforation holes 16 pieces / cm ² .

Diameter of holes: 1.0 mm.

The speed of the steel tape is not more than 0.5 m / s.

For the manufacture of press compensation pillows apply heat-resistant latex paper with a thickness of 0.65 mm

After the stamping press, the perforated copper foil is pulled out using a correct exhaust device and fed to the calender, where latex paper is fed from 2 rolls above and below at the same time. A press pad is made on a two-roll calender with a vertical arrangement of rolls. Calender rolls have the same diameters and speeds. The assembly of the design of the press pad occurs during the joint compression (pressing) of the rolls of the calender of paper and frame. If it gets into the gap, the paper is impaled on the burrs of the frame, and then, as a result of their bending, it adheres to the frame. The required thickness of the web of the press pad is achieved by adjusting the calender clearance.

The web thickness of the fabricated press pad is 1.0 mm.

Speed of movement of a cloth of a pillow no more than 0,5 m / s.

After the calender, the cushion cloth enters the unit for applying the release layer, passes between the nozzles through which silicone fluid is sprayed onto both surfaces of the cushion cloth. This layer, in addition to anti-adhesive properties, gives the pillow additional heat resistance.

Then calibrate the thickness of the cushion web with special rolls.

The thickness of the release layer is 0.02 mm.

Speed of movement of a cloth of a pillow no more than 0,5 m / s.

Next, the canvas enters the device for the transverse cutting of the cushion canvas into sheets of a given length.

Press cushion (figure 3), manufactured by the described method, was tested in the manufacture of multilayer printed circuit boards at a temperature of 180 ° C and a specific pressure of 20 kg / cm ² and withstood more than 50 compacts without visible defects of the press cushion - delamination. Manufactured multilayer printed circuit boards meet the requirements of technical documentation.

The finished press pillow is a rectangular product, 1.0 mm thick, 1100 mm wide, 500 mm long.

Information sources

1. Technological processes for the production of foil and non-foamed fiberglass and getinaks TO.TP.12. AOZT Plant Moldavizolit, 2001, p. 15, p. 33.

2. Hushka Manfred "Introduction to the technology of extrusion of multilayer printed circuit boards."

3. US patent 4461800, 29 D 17/00, 29 C 3/00, 32 V 5/32, 1984

4. OVV.Bobylev, N.V. Nikulin, N.V. Rusanov, V.I. Tsyganov “Technology for the production of electrical insulating materials and products”, Moscow: Energia, 1997, p.176.

5. Patent for invention No. 2235642 "Compensation press pillow for forming press", RF.

6. Patent for invention No. 2220848 "The composition of the reaction mixture for the manufacture of press compensation pillows", Russia.

7. Patent for invention No. 2235643 "Method for the manufacture of press compensation pillows for forming press", RF.

Claims (7)

1. Press compensation cushion for forming press, made in the form of a multilayer structure containing at least one rigid frame of a rigid sheet, perforated with holes with protrusions directed to both sides of the plane of the sheet, and at least two shock absorbing elastic layers coated with a release coating, characterized in that each shock-absorbing elastic layer is made of heat-resistant latex paper, the thickness of the sheet of the rigid frame is 0.035 ... 2.0 mm, holes perforated hard sheet with a thickness of 0.035 ... 0.22 mm are made round with a diameter of 0.8 ... 1.0 mm, and with a thickness of 0.22 ... 2.0 mm - round with a diameter of 0.8 ... 1.0 mm or rectangular 1.0 ... 1.7 mm long and 0.8 ... 1.0 mm wide. 2. Pillow according to claim 1, characterized in that a heat-resistant latex paper is used that can withstand heating up to 400 ° C. 3. Pillow according to claim 1, characterized in that silicone or teflon liquid is used as a release coating. 4. Pillow according to claim 1, characterized in that the hard sheet is made of a material with high thermal conductivity selected from the group comprising steel, aluminum, copper and their alloys. 5. Pillow according to claim 1, characterized in that the hard sheet is made of a material with high thermal conductivity selected from the group comprising a polyamide or polysulfone resin with metal fibers or powder. 6. A method of manufacturing a press compensation pillow, including the manufacture of a rigid frame of high thermal conductivity, lining it with an elastic cushioning layer, applying a release layer, transverse cutting of the web of the press pillow, characterized in that the hard frame is wrapped with heat-resistant latex paper and its subsequent roll pressing. 7. The method according to claim 6, characterized in that the release layer is applied by spraying.

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