Dry Ice

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21 March 2018by langyuzer0

In collaboration with Alpedo Kervan Patisseries and Lang Yüzer Holding, an industrial dry ice production facility has been opened.

“Pazarcık” – The Narlı Quarter industry will produce dry ice used to ship Kahramanmaraş ice cream. The opening ceremony was attended by AK party Kahramanmaraş deputy İmran Kılıç, mayor Fatih Mehmet Erkoç, provincial vice-president of the AKP party Ahmet Alıcı, mayor Yakup Hamdi Bozdag and a large number of relatives and citizens. Mehmet Yüzer, Aziz Yüzer and Ismet Yüzer made the opening speech of Ly & K “dry ice” production partners.

After the opening speech, Kahramanmaraş’s deputy made a speech to the AKP party İmran Kılıç, saying that this facility was very necessary for the ice cream town of Kahramanmaraş. Metropolitan Mayor Fatih Mehmet Erkoç talked about this investment and said that Kahramanmaraş Ice Cream would gain a reputation. Pazarcık Mayor Yakup Hamdi Bozdag said that Kervan Pastry Shop is an important investment in the city. Alpedo Kervan Patisserie CEO Sami Kervancıoğlu said: “Congratulations to our country and our city”.



25 April 2017by langyuzer0

With a suitable compressor system, the required operating pressure of 6-14 bar is obtained. The compressed air is dried and delivered to the spray gun with a hose to prevent operating failures that may occur due to ice build-up. The pressure created by a transverse cutout delivers the CO2 particles in the carrier hose with the gun. These ice particles are squeezed onto the part to be cleaned with a great pressure and the cleaning process is carried out.



25 April 2017by langyuzer0

Grundprinzipien des Managements

Das Grundmerkmal der Trockeneis-Reinigungsmethode beruht auf der Verwendung von Kohlendioxid (CO2) -Gas bei 0,03% an Luft. Das Kohlendioxidgas hat eine kalte Temperatur von -78 ° C unter normalen Bedingungen in der Atmosphäre. Diese Glasur verfestigt sich bei einer bestimmten Temperatur von der Gasform. Dieser feste Zustand des Gases wird in der populären Sprache als “Trockeneis” bezeichnet. Das CO2-Gas, das in die Poren der Eismaschine gesprüht wird, wird durch eine gewisse Hitze in Frost umgewandelt. Das so erhaltene Trockeneis wird mit einem Druck von 100-300 m / s auf die zu reinigende Oberfläche aufgesprüht. Aufgrund der kinetischen Energie, die aus der Trockeneis-Explosionskombination freigesetzt wird, werden unerwünschte Schichten und Schmutz auf den verschmutzten Oberflächen gereinigt.

Die Verwendung dieser Methode in der industriellen Reinigung ist attraktiver als andere Reinigungsmethoden. Aufgrund der Methode werden die organischen Lösungsmittel und schädlichen Kohlenwasserstoffe, die für die Umwelt schädlich sind, durch andere Reinigungsmethoden deaktiviert. Es gibt nur noch wenige Reste, die durch die Entfernung von Schichten und Schmutz zurückbleiben. Darüber hinaus wirkt sich dieses Verfahren nur auf die obere Oberfläche der zu reinigenden Formen aus und es gibt keine Nebenwirkung mit Parametern, die die Eigenschaften der Formen verändern werden.

 

1. Compressor (6-14bar)

2. Ice Storage Container

3. Ice Spraying Machine

4. Ice is sprayed on the dirty surface with pressure


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25 April 2017by langyuzer0

Properties of CO’2

The graph below (p, T) shows the state of existence of CO2 gas depending on temperature and pressure.

CO2 gas is a gas that is colorless, odorless, non-flammable and tastes good. It is found in volcanoes and ground layers in large proportions. It arises from the change of animal and human materials.

If this gas concentration exceeds 0.05% in air, the oxygen content in the atmosphere decreases and it makes breathing difficult. This gas is 40% heavier than air.

Therefore, it is found in close regions. It is necessary to be careful in closed places. In such places, ventilation and suction systems must be found. Normal ventilation through windows and doors is sufficient to achieve a normal CO2 concentration.

Physical Information:

Normal Density: 1,977 kg / m3
(1,0B25 bar, 0C)

Critical Temperature: 31C
Critical Density: 466 kg / m3
Flight Notation: -789C at 0.9 bar

 

Dry Ice – Pieces

Dry Ice Parts – Manufactured by means of a Pore (Ice Making Machine) called Pellets. Liquid CO2 is sprayed into the porosity. The snow that comes out of this process is transformed into cold bouquets by means of a hydraulic pump and shaped by means of this bouquet mold. Thus, ice particles (Brass size) are formed with a diameter of approximately 3 mm and a length of 8 mm.

The dry ice particles are then transported to the field of use with large ice storage containers, offering use.


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25 April 2017by langyuzer0

Moulded rubber parts/rubber-metal connections

The moulding of elastomers has been part of our daily business at Lang & Yüzer Otomotive A.S. for almost two decades. Customers such as Bosch, Pirelli and Goodyear underscore our expertise in this field. It is this knowledge that has made LY Group world market leader in the area of mould cleaning with dry ice robots and ultra-sound processes. The moulding experience of Lang & Yüzer Otomotive A.S. means that your company will benefit from our technological lead.

Technical facilities:

IM/CM presses of 400 – 4500 KN clamping force by DESMA, Dieffenbacher, LWB, Arburg, Engel and REP. Blasting systems


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25 April 2017by langyuzer0

Inspection, sorting, assembly, order picking and dispatch

Everything under one roof

Assembly, inspection, functionality check, packaging, order-picking or despatch – Lang & Yüzer Otomotive A.S. is your partner for all issues surrounding final processing. Our motto in this regard is very simple: there is no such thing as “not possible” at Cerkezköy und Izmit.

Assembly and inspection according to customer
specific requirements:

  • Manual assembly
  • Automatic assembly
  • Manual inspection of the assembled parts
  • Assemble components and perform checks according to customer-specific requirements
  • Manual processing of component parts
  • Sort parts according to inspection instruction: good/rework/rejected
  • Inspect parts according to
  • inspection position
  • Manual inspection according to drawing
  • Manual inspection according to limit sample
  • Packaging and dispatch according to customer’s requirements

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25 April 2017by langyuzer0

Rubber, plastic, die cast or rubber-metal bonding – removal of flash in an eco-friendly, cost-effective and reliable way using nitrogen is what Lang & Yüzer Otomotive A.S. stands for. Our methods of cryogenic deburring are both gentle on your materials while still removing residue in a time-efficient and targeted manner. We are happy to discuss with you which of our processes are most suitable for your product. One thing is certain: we will find the right solution for you.

Technical facilities: 

  • Strahlanlagen
  • Typ Linde MSA
  • Kältetrommel-Entgratungsanlage
  • Typ Mewo 42
  • Rotor-Strahlanlage
  • Typ EEP 40/ EEP 90
  • Trockentrommel / Waschmaschinen

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25 April 2017by langyuzer0

A new generation of mould cleaning technology

LKY Kältetechnik und Dienstleistungs GmbH, based in Gross-Umstadt, has been supplying dry ice cleaning solutions for over a decade. The standout features of this manual dry ice cleaning method are the way it protects surfaces, the fact that the blast material does not have to be disposed of, and its flexibility.

The CO2 robot represents a new generation of mould cleaning technology in the form of a system that is programmed to suit individual applications and can be used for practically any industrial mould. Speed, safety and ease of use are the principles on which this robot is based.

Cleaning can be carried out both in the press (online) and outside of it (offline).

Data:
Length: 3300 mm, width: 1100 mm,
height: 2600 mm
Overall weight: 2450 kg

All the system requires for operation are compressed air at 6 bar (a diesel compressor can be used for this as an option) and a 400 V/50 Hz power connection.

Overall benefits of CO2 robot technology:

  • Reduction in costs
  • Increase in tyre production
  • Short cleaning processes within the presses -(approx. 30 min per mould)
  • Flexible system (can be used as a mobile or stationary system)
  • No need to remove tyre moulds (shorter handling times)
  • Gentle application thanks to dry ice (mould surface ¬is not subjected to stress; waste air valves are not damaged)
  • Cleaning noise level remains below 85 dB(A) -during cleaning
  • Adaptation to individual mould dimensions
  • Easy to operate and handle
  • No negative effects on the production process Dry ice pellets have a low degree of hardness.
  • They can be used to clean even sensitive surfaces. The dry ice blasting process can be adapted to the properties of the surface to be cleaned by varying the process parameters.
  • Dry ice pellets are a viable alternative to organic -solvents that are harmful to the environment and halogenated hydrocarbons.
  • The only waste produced is the coating material that is removed.
  • Dry ice blast granulate sublimes without leaving any residue.
  • Only short downtimes are required for the systems to be cleaned.

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25 April 2017by langyuzer0

Cleaning processes are an important part of industrial production.

In addition to mechanical and chemical cleaning methods, there are a whole range of processes that use water, sand, plastic or glass beads as blasting agents. The disadvantages of these methods are that the abrasive nature of the blasting agents causes wear, they incur costs for disposal and treatment of the contaminated blasting agents, and they involve downtimes for the production facilities.

Cleaning with dry ice pellets offers an alternative that is kind to both materials and the environment.

Information about the blasting medium and how it works:

 

The blasting medium
Liquid carbon dioxide is stored in a low-pressure tank at approximately 20 bar and at a temperature of around -20°C. When sprayed into a pelletising cylinder, it forms carbon dioxide gas and carbon dioxide snow as a result of cooling and expansion to the ambient pressure. This snow, which has a temperature of approximately -78°C, is compacted and then pressed through a pelletising matrix. This produces dry ice pellets measuring around 3 mm in diameter and 10 mm in length.

How it works
The pellets are accelerated to 100 – 300 m/s using compressed air. They are then sprayed on to the surface to be cleaned by means of special nozzles. When this happens, the blast medium supercools the surface at specific points and removes unwanted coatings and impurities. It is the combination of cold temperatures, kinetic energy and an “explosive” change of state (sublimation) by the dry ice pellets that makes this method particularly suitable for industrial cleaning processes.


İZMİT

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(+90) 262 349 63 03

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www.ly-holding.com

tolga@ly-holding.com

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