Stiklo pramonės formų pasta

Stiklo liejimo formų tepalai          

Rūšis

Darbinės temperatūros, ºC

Lašėjimo temperatūra, ºC

Pagrindas

Panaudojimas, savybės

 

Molyduval

Gloria B 97

 

 

-20 iki +120

Sausieji tepikliai iki

+700

 

 

 

-

 

 

Min + 5,5% grafito

Grafitiniai stiklo formų tepalai

Stiklo liejimo formų aukštatemperatūrinis grafitinis minkštos NLGI 0 konsistencijos tepalas. Puikus lipnumas, paviršiaus padengimas, vandens atstūmimams, maksimalus trinties nuo formos briaunų šalinimas. Įvairioms butelių formoms, tuščiavidurės stiklo taros (IS- mašinos) formavimui. Atitinka :

Kleennmold 197 tepalas

Juodas. MPF0; SO-L-XBCEB0

 

 

 

Molyduva

Gloria RSM 20

 

 

 

 

 

-15 iki +180

 

 

Pliūpsnio

+202

 

 

Paraf / Sint

ISO VG 22

 

 

Skaidri technologinė baltoji parafininė alyva su specialiaisiais sutepimo / atleidimo priedais tuščiavidurio stiklo gamybos latakams, samteliams, piltuvėliams.

 

 

Molyduval

Aladin GG

 

 

 

 

Sausieji tepikliai iki

+700

 

 

 

 

-

 

 

Neorgan. Derv / Lak + MoS

 

Sausa lakinė formų danga su molibdeno disulfidu. Nudžiuvus nešikliui, ant formos paviršiaus susidaro glotni minkšta sausa molibdeninė plėvelė. Džiuvimo laikas : 1 – 5 min.

Pilkas.

 

Tepalai ir alyvos stiklo pramonei

Swabbing Lubricant for Glass Industry

Molyduval Gloria B 97

Lubricant with solids for the hollow glass production. It is used as a swabbing
compound predominantly in larger bottles and containers. The smooth, adhesive
graphite film ensures good release, good pre-drop, good distribution of glass, and a
clean glass surface without leaving any residue.
Can also be applied as a pre-coating directly onto the form. A separate pre-coating
is not necessary. A small number of glass factories use an additional preform
coating to avoid cracking. Others have found that these "duplicate" layer boost
residues on the glass. Whether an additional coating is positive or not, seems
product typical.
 
Properties : 
* low smoke formation
* good water resistance
* good moistening
* long using times
* high rub resistance
* minimum transfer of graphite
* easy loading of swabs
* as release agent for moulds in glass industry
 
Applications
  • Should be used with a dry swab.
  • A light dipping of the swab is recommended.
Excess lubricant must be squeezed out before applying to the mold equipment.

Lubricating swabbing means for glass container machine 

In a glass container making machine using a split face mold, means are provided for controllably diverting the parisons from the mouth of the mold to a waste glass collector when the mold is closed so that at the same time swabbing means lubricate the inner faces of the mold cavity.

For many years the glass container industry has worked on the problem of developing a mold lubricant that will release the glass from the iron and not cause imperfections in the glass. Prior to the present industrially manufactured swabbing compounds, many materials were used as lubricants: mutton or beef tallow, stove polish, red engine oil, graphite, puddler’s wax, cup grease, melted bacon rind, sulfur, automobile inner tubes, and melted# victrola records. Most of these ingredients were thrown into a pot and cooked over a gas flame: at times, small explosions occurred when the dope became too hot or the ingredients were not compatible. In some cases, the operators mixed their own products but, more generally, a specific man was put in charge of preparing the dope. Through trial and error, he developed a product, the formulation of which became the property of the inventor, and the ingredients became his carefully guarded secret. While these dopes might have been satisfactory, it was almost impossible to get reproducible results. The glass factories disliked having the secret “know-how” of the formula in the hands of one man who might not be agreeable to sharing his knowledge. In the late 1930’s, the first commercially prepared swabbing compound appeared on the market and was readily accepted by the glass industry, for it offered a product with known characteristics which could be continuously reproduced. It might be noted that the same basic ingredients, graphite and sulfur, which were present in the handmade varieties, are still the backbone of the present day commercial formulations. Mold release agents for the glass container industry are usually formulated from a solid, which is uniformly dispersed in a vehicle. Vehicles are usually oils, waxes, stabilizers and other volatile products which aid uniform distribution of the compound as applied to the blank mold of a glass-forming machine. Solids are usually graphite (amorphous, flake, or colloidal), sulfur, or molybdenum disulfide. It is possible to formulate a series of compounds ranging from “clean” to “dirty.” The proper selection of compound must, of course, be based on the type of machine to be used, type of glass to be made, and variables such as speed and heat. Compounds for special use, such as spot application at shoulders and necks, may be of assorted composition. Examples are compounds containing sulfur, rubber, synthetic elastomers, or solidified paint. Non-flammable liquid mold release agents are usually formulated from a water base vehicle or materials which are dissolved in water at time of application. The extreme cooling properties of water and its poor spreading characteristics have limited its use because of its tendency to cause splits and checks. Nonflammable vehicles other than water are available, but their use is limited by cost and by their production of toxic or noxious vapors under heat. Blank design, iron structure, gob shape, glass temperature, and blank-mold temperature are extremely important when making an acceptable glass bottle. All of these factors are dependent on each other and on the proper application of the swabbing compound.