Automobiles, by design, feature metallic parts which are prone to the elements of dust, water and temperature. Corrosion resistance then becomes indispensable. In such a scenario, OEMs must use chemically plated parts, primarily Zinc-Aluminium Flake Coating, because of its versatility.
Growel Chemicals promises the best and delivers on it. It’s no wonder then that they have a long-standing relationship with Japan’s number one Zinc Aluminium Flake Coating manufacturers NOF Metal Coating’s Asia Pacific Co. Ltd.
In the late 90’s they introduced Dacromet® and Geomet® processes in India just as the auto industry boomed in India. Since then, Grauer & Weil have appointed over 25+ sublicensees for providing Geomet® coatings to leading OEM customers across India.
The Geomet® process is well established, superior in technology, and environment-friendly. It is used in many industries throughout the world, such as Automobiles, Windmills, Engineering, Electricals & Electronics, White Goods, Mining, Railways, Process Industry, and Defence.
So What’s The Geomet® Process?
Zinc Flake coatings provides outstanding protection to metallic surfaces against corrosion.
The coating is known by the name ‘Geomet®’ and contains inorganic silver-grey deposits essentially comprising Zinc & Aluminum flakes, uniformly distributed on the entire substrate.
What Are The Applications Of The Geomet® Process?
The Geomet® process covers the protection of various items like fasteners, springs, brake discs, etc.
The application of topcoat is used as a coefficient stabilizer and additionally improves protection against corrosion. Both processes provide outstanding protection to metallic surfaces against corrosion at film thickness as low as 8~10 microns.
What Are Its Advantages?
It protects your vehicle from:
Corrosion
Wear and tear
How Growel Adds Value To Your Automobile
Growel supplies both the chemicals and equipment required for the Geomet® process. We not only sell but also transfer this technology to the users and aid them with:
Giving extensive training in our pilot plant.
Assisting our Licensees in equipment selection, supply, and inspection
Participate in Process Establishment at Licensee’s Plant.
Continuous regular supply of Coating Chemicals
Testing facility to Licensees as required
Troubleshooting as and when needed
Together, Growel and NOF Metal Coatings have been protecting the Indian automotive industry. To know about how we can help you, do reach out to us at our WhatsApp number: 8082048048 and send your queries to enquiries@growel.com
The history of the zipper is fascinating. It is the sole reason why Levi’s blue jeans came into existence. It holds everything together, from leather jackets to boots, from winter wear to faux zips. So without further ado, let’s zip along!
Gold and Timeless
Picture a regal, bright zipper on an elegant jacket. Now slide it close and open. Is it happening effortlessly? You are probably wearing a metal zipper processed with Growel’s chemicals! Don’t leave GrowelBrascoglow 620/Brascoclean BC 20 behind if you’re looking for a royal appearance. It glides and shines!
Black Is the New Black
Of course, one can’t picture their favourite black leather jacket without a shiny zipper. At Growel, we have many products vying to blacken your zippers and buttons. From versatile, uniform application to an antique finish, you can’t go wrong with GrowelAntique Tin A/B. However, suppose you want your zips to bite back. In that case, you should check out Growel Antique Black Brass/Copper Oxidizing Salt for excellence and resistance all in one.
Eco-Friendly Elegance
High-end fashion and the environment don’t always go hand in hand. But you do what you have to stay in vogue. Growel Ginplate 1531/531 has you covered for sustainable and eco-friendly zippers. For example, it is non-cyanide technology and bright, quite literally. But, of course, you can’t go wrong with a classic, so if you’re looking for a glossy black finish, choose Growel Antique AL Black Process. It is Chrome and Cyanide-free, making it non-toxic.
Shine Matte Shine
Glossy is the new matte, and matte is the new shiny. And at Growel, we aim to provide a glossy or matte finish without a frown. Growel Ginplate IF 439 A/B lets you serve fiery looks! But, if matte matters, the Growel Ginplate Cu 506 A/B/C and Ginplate Cu 534 are here to highlight your zippers minimally!
So there you have it, folks. Zipping is not child’s play! As the garment industry evolves, so do manufacturing processes. Fascinatingly Growel has a massive role in this much-underrated business.
The garment industry constantly evolves, with new fashion trends emerging regularly. A versatile tool, zippers are employed in haute couture, business to casual wear, as well as footwear and bags. Zippers are constantly in demand and generally manufactured on a large scale. So it is crucial to pick the correct manufacturing technique to ensure high quality and better productivity at economical pricing. So how do you plan to zip it together?
Zippers are largely considered to be the least durable components of a garment. So it is imperative to choose the ideal manufacturing process. Growel covers a wide range of surface finishing chemicals that specialize in resistance to wear while enhancing aesthetics. Our products cater to wholesalers, buyers, and contractual projects, from cost-effective solutions to performance-oriented chemicals.
A Royal Welcome
The children’s clothing and adult fashion industries didn’t use zippers in significant numbers until the 1930s. The Prince of Wales gave things a nudge when he adopted the zip fly into his wardrobe in 1934. Around the same time, designer Elsa Schiaparelli started incorporating zippers into her sportswear and avant-garde gowns. Zippers really took off in 1937 when they caught the attention of several French fashion designers. In 1954, Levi’s introduced a particular zippered version of its overalls called the 501Z, replacing the button-fly.
Y.K.K, the Zipper
The Y.K.K. group in Japan is the biggest zip maker, which is why the letters Y.K.K. are on so many zips. Y.K.K., stamped on the pull tab of many zippers, is the abbreviated name of the company, Yoshida Kogyo Kabushikikaisha, founded in 1934 by Tadao Yoshida. It now has factories worldwide and makes more than 1.5 billion zippers a year. Y.K.K. Co. has also branched out into other fasteners and architectural building products. Thanks to the benefits others see in zippers, today, the company operates in 71 countries and has about 39,000 employees. The Y.K.K group is one of the largest buyers of Growel Chemicals.
Millions and Millions of Zips
A large modern plant can produce zippers for more than seven million pairs of pants a day. So whether you’re a zipper manufacturer or a high-end wholesaler, there are enough zips to keep the world together.
In conclusion, the garment industry constantly evolves, with new fashion trends emerging regularly. A versatile tool, zippers are employed in haute couture, business to casual wear, as well as footwear and bags. Zippers are constantly in demand and generally manufactured on a large scale. So it is crucial to pick the correct manufacturing technique to ensure high quality and better productivity at economical pricing. Environment-friendly processes are also imperative. Irrespective of your chosen procedure, Growel’s chemical products cover a wide range of techniques. So how do you plan to zip it?
Different advantages of zinc aluminum flake coating are as follows :
No Hydrogen embrittlement – The
treatment process of zinc aluminum flake coating do not involve treatment with acid
for removal of corrosion products like mill scales, rust. Mechanical cleaning
(shot blasting, grit blasting) followed by coating avoids the risk of hydrogen
embrittlement.
Overall coverage – The coating
process is non electrolytic. Articles are coated by dip mode of application or
spray mode of application depending on size, weight of article. The articles
are coated ensuring complete coverage.
Corrosion resistance – The corrosion
resistance is higher due to overall coverage and also due to sacrificial
protection of zinc /aluminum flakes. The film structure is like brisk wall
minimizing penetration moisture. The film also has self healing property.
Thermal stability – Cured film of
zinc aluminum flakes do not changes its properties even at higher temperatures.
There is no degradation in corrosion resistance property.
Excellent adhesion and recoat ability
– Zinc aluminum flakes coating film adheres firmly to metal surface. It has
also excellent recoat ability. Top coat with different lubrication properties
can be applied on zinc aluminum flake coating to further enhance different
properties.
Free from pollution – The water-based
zinc aluminum flake coating process do not involve generation of waste water.
The coating is free from water and air pollution.
Generally
zinc aluminum flake coating process involves cleaning to remove oil, shot
blasting to remove rust/mill scales, coating and curing. Desired properties are
achieved essentially with two coats. The properties are further enhanced by
application of suitable top coat.
Use of ferrous and non- ferrous material is unavoidable in the industry due to its availability, strength, durability, work-ability and ability to recycle. Automobiles, bridges, house- hold appliances, power generation equipment’s, railways, engines etc. are manufactured using ferrous and non -ferrous materials by adjusting metal properties in terms of hardness, flexibility, resistance to corrosion, weight to strength ratio etc.
Loss of metal due to various types of corrosion processes is a perennial problem in the industry. Thousands of dollars are wasted due to loss of metal (corrosion) and also thousands of dollars are invested in protecting the metal from corrosion. This in turn increases the life span of manufactured items, avoids the probable risk of accident.
Use of different types of fasteners, nuts, bolts,
clips are necessary to manufacture different articles. The adequate strength
required for the articles is provided by different sizes of fasteners, nuts and
bolts. Fasteners are subjected to
failure due to atmospheric corrosion, hydrogen embrittlement, temperature
variations and bi- metallic corrosion.
Different types of phosphating systems and also
painting systems with different types of resins, film thickness varying from
few microns to few millimeters are used to protect the main structure. However
higher film thickness of any coating is a limiting factor for fasteners.
Different types
phosphating, blackodizing, zinc plating followed by passivation layers are used
to improve the corrosion protection of fasteners. However, zinc plating has
limitations in terms of corrosion protection and possibility of hydrogen embrittlement.
Adverse effect on environment due to use of hazardous chemicals also needs to
be considered while using such coatings.
Zinc aluminum flake coating is developed with the
extensive research to provide protection against all types of corrosion for
fasteners, brake disc etc with a very thin film of 6~10 microns. Zinc aluminum
flakes with water or solvent based, binders free from hexavalent chromium (environmentally
friendly) and adequate additives to improve different properties are widely
used in the industry. Even at low film thickness zinc aluminum flake coating
provides excellent protection against corrosion considering different environmental
cycles. Zinc aluminum flake coating also helps in preventing bi metallic corrosion.
Electroless Nickel Plating (ENP) is
the deposit of a nickel-phosphorous alloy coating by autocatalytic chemical
reduction – without the electric current.
The majority of ENP for engineering
purposes is a nickel-phosphorus alloy deposit containing 2 to 13% phosphorus by
weight.
Higher the phosphorus content the greater is the corrosion resistance, however, on increasing the phosphorus content, the hardness of the coating decreases.
ENP is deposited by reducing Ni2+ cation to metallic nickel with a chemical reducing agent such as sodium hypophosphite or borohydride or DMAB. In the course of chemical reduction, some phosphorous generated gets deposited along with reduced Ni-metal to form a Ni-P Alloy Thickness of 15 – 75 µm, this is very common for most of the application, but for some specific applications high phosphorus ENP can edge above 75 µm also, especially, for very high corrosion and wear resistance requirements.
The advantages of electroless nickel
plating
ENP offers excellent corrosion resistance against most of the common corrodents such as saltwater, carbon dioxide, oxygen, and hydrogen sulphide, etc.
High phosphorus deposit of ENP (10-13%
phosphorous) is amorphous in nature, which means that there are no grain or
phase boundaries to create active sites for the initiation corrosion.
The uniformity of ENP versus electrolytic deposits is very advantageous for plating irregular and complicated shapes of substrates. ENP deposits a uniformly thick coating across the whole substrate; even in slots, holes, and inside walls of the tubing.
Without heat treatment, corrosion-resistant of high phosphorus ENP is very high and also has good hardness and wear resistance properties. Hardness can be increased more than doubled by heat treatment with a bit of compromise in corrosion protection.
ENP offers a cost-effective solution for applications subject to conditions where wear and corrosion are factors; extending service life and providing a lower-cost alternative to corrosion-resistant alloys, particularly where carbon steel suffers localised corrosion; flange attack or weld corrosion.
What are the properties of the
deposit and factors affecting them?
ENP provides excellent corrosion
protection and uniformity in thickness of deposit along with good hardness. The
phosphorus content of the deposit can be chosen as per the requirement of the
application.
At Grauer & Weil our technical team understands each customers’ application and its requirement before recommending the optimum phosphorus level – the higher the phosphorus content the greater the corrosion resistance but lower the hardness.
Hardness of ENP can be increased by heat treatment but this produces a micro-crack in the deposit which reduces the corrosion resistance of the coating.
Uniform thickness distribution and alloy composition on complex shapes are the biggest advantages of Electroless plating over electroplating.
How does heat treatment affect ENP?
ENP is at its most corrosion-resistant in its amorphous phase. Heat treatment causes particles of nickel phosphide (Ni-Ni3P) to precipitate, destroying the amorphous character of the deposit. With highphos ENP deposits, this occurs at temperatures between 300 and 395 °C.
How well does ENP adhere to
substrates?
Adhesion is dependent on effective cleaning of the substrate. With good surface preparation adhesion to carbon steel is between 200-420 MPa. With stainless steels, the bond strength is usually between 120-160 MPa.
What factors affect plating quality?
There are several factors affecting
plating quality and they should be effectively managed by your surface
finishing partner.
– Surface preparation: Rough, badly machined surfaces with uneven metal surfaces, burrs, or cold shuts cannot be effectively plated.
– Cleaning: Surfaces must be free from oils, dirt, and soaps formed by saponification of oils by alkaline cleaners.
– Control of the baths and operating parameters: Temperature, pH, nickel ion concentration, and hypophosphite concentration all need to be carefully managed to ensure high quality and consistent plating finish.
What are the fabrication/finishing requirements before plating?
Weld spatter should be removed, sharp edges radiuses and weld roots ground smooth. When refurbishing/remanufacturing components it is important that corroded areas are ground to a flat surface.
Some other key considerations
When looking to choose a suitable
partner for your electroless nickel (ni) plating requirements it is important to
check for several factors:
– Will surface inspection be
completed prior to plating?
– Are the chemicals supplied by a
certified ENP product supplier?
– Are ENP solutions made up with demineralized (DM) water?
– Is continuous filtration of the bath to 3 microns done along with air agitation?
– Is bath chemistry (Ni2+, hypo, buffer, etc.) monitored regularly by chemical analysis?
– How regularly are plating Tanks
cleaned?
– Is the inspection of the plating line carried out to sufficient levels?
Growel Specializes in the development & manufacture of lubricating oils used in the wire drawing industry.
The Indian Market hitherto was dominated by multinational corporations, Growel drawing oil has developed a made in India range of highly advanced range of products specifically geared for the wire drawing industry.
These wire drawing
products are categorized as per the material used for the wire manufacture –
MS & steel wire drawing oils
Aluminium wire drawing oils
Copper tube drawing oils
Copper wire drawing oils
MS & steel wire drawing oils –
GRODAL NOX UM – Water-soluble lubricating compound for MS & SS wire drawing as well as deep drawing applications.
GRODAL STEEL NOX / NOX –
This is a pasty material based on vegetable oil & surfactants used for steel, MS, black & galvanized wires. In many industries, it is also used for deep drawing purposes.
Aluminium drawing
oils –
Growel’s lubricants cover all the aluminum wire
production stages:
Rod breakdown (RBD)
Intermediate drawing.
Fine-wire drawing
Extra-fine wire drawing
Coiling and/or bunching
Products
–
GRODAL STAMP DE 2010 –
This product is mainly used in vanishing, drawing, stamping &
blanking applications.
It is especially suitable for aluminum & its alloys.
GRODAL DRAW 300 –
This is a low viscosity fine aluminum wire drawing oil free from sulphur, chlorine, zinc & is, therefore, suitable for super finishing of ferrous, non-ferrous & yellow metals.
Multifunctional semi-synthetic oil for aluminum or its alloys. This range of drawing oils is specially designed for excellent lubrication, extreme cooling power & better detachment from aluminium.
GRODAL STAR DE 1422 –
40 CST viscosity product -Multifunctional semi-synthetic oil for aluminium or its alloys specific for wire rod breakdown and drawing. Final diameter above 0.6 mm.
GRODAL STAR DE 1422-90-
40 CST viscosity product -Multifunctional semi-synthetic oil for aluminium or its alloys Specific for wire rod breakdown and drawing. Final diameter above 0.4 mm.
GRODAL STAR DE 1422 R-
170 CST viscosity product- Multifunctional semi-synthetic oil for aluminium or its alloys Specific for wire rod breakdown and drawing. Final diameter above 0.9 mm.
GRODAL STAR DE 1422 H-
22 CST viscosity product – Semi-synthetic oil for the drawing of aluminium and its alloys fine-wires (Al/Mg). Exit diameter above 0.5 mm. Corrector additive for GRODAL STAR DE 1422 R and TADAL STAR DE 1422/90.Suitable for enameled aluminium wire drawing.
GRODAL STAR DE 1422 F-
12 CST viscosity product – Semi-synthetic oil specially designed for the drawing of aluminium fine-wires. Suitable for the production of enameled wire. Exit diameter below 0.5 mm. Corrector additive for GRODAL STAR DE 1422 and GRODAL STAR DE 1422/90.
COPPER TUBE DRAWING OIL –
GRODAL TUB 3000 –
This is a synthetic oil specially designed for drawing copper pipes. This product is also suitable for inner drawing & is free from mineral oils, sulphur & chlorinated esters.
GRODAL TUB M 01F-
A synthetic
oil suitable for inner copper tube drawing.
GRODAL FIL C-14-
Light viscosity stranding oil for aluminium & copper. This product has a high cooling ability.
COPPER WIRE DRAWING & ANTI TARNISH FLUIDS
GRODAL CU 860 & GRODAL CU 661 –
These products are added to water to prevent tarnish & oxidation on copper tubs, wires, rods, etc.
GRODAL CU SYN DRAW 12 –
An all synthetic product with lubricity, corrosion inhibitors & surfactants. This product is free from binding, enameled wire rejections, oil separation & insoluble copper soap formation.
GRODAL CU 1350 N –
Multipurpose emulsionable semi-synthetic oil for copper and enameled copper wire. High stability and high detergency. It provides high benefits with low maintenance costs. Suitable for an enameled wire.
Grodal Syncool 2 is the “GROWEL” make surface protector cum coolant widely used in Pump Industry for Submersible / Open well / Self Priming Pump-sets. Its primary application is to protect the inner surface of the motor against Rust and Corrosion which increases the working lifespan for the Motor to a long time.
Grodal Syncool 2:- Major Benefits
1. Due to its well-balanced formulation it reduces the pump set’s choked-up problem with the help of world-class cleaning agent cum rust inhibitor additives. Exhibits excellent performance on cast iron body washing/cleaning & rust protection.
2. Easy start-up even at low voltage due to choking free operation.
3. Increased life of thrust bearing and bushing due to synthetic water- soluble lubricity additives.
4. No pressure generation after using Grodal Syncool 2 in the pump, resulting in no gas formation into the closed system due to the additives.
5. Our product is chlorine & phenol-free.
6. Increases the overall efficiency, based on specific
requirements as 20% dilution with DM water to 100%.
7. Toxicity test
carried out NABL approved lab
resulting passes.
8. Our product Grodal Syncool 2 is formulated with top quality water-soluble additives.
9. We strongly recommend this product to use in the pumps Instead of plain water by pump manufacturer to avoid rusting & to boost the overall performance in operation by 5-6%.
How to use Grodal Syncool 2 in pumps:-
First flush & clean the Submersible / Open well / Monoset motor cooling system by soft / Tap water. Fill with one part (1Ltr) “Growel” make Grodal Syncool 2 & 4 parts (4Ltr) of DM water or drinking water in to the motor up to specified / marking level. Then complete the assembly of a motor by tightening the screw with washer & ‘O’ ring. Ensure there is no leakage. Before final installation submersible motor must check (start) for 1-2 minutes. If it starts smoothly then the submersible motor is ready for installation. During this check, Grodal Syncool 2 develops a synthetic polymer layer inside the motor. This layer protects the inner surface against rust/corrosion.
Advantages of Using Grodal Syncool 2:
Grodal Syncool 2 is beneficial commercially as well as technically.
Consumption benefit of our product is as under:
APPLICATION
COMPETITOR PRODUCT RATIO
GROWEL RATIO
Washing CI Parts of motor with Gun Metal Bush
30 %
20
%
Washing CI Parts of motor with Carbon Bush
30 %
4
%
Washing of Rotor/Stator
30 %
20
%
Coolant filling at testing/dispatch
12.5 %
10
%
Grodal Syncool 2 has better performance in terms of Rust Protection compare to competitor’s product
We have small packing like 1 Kg, 5 kg & 30 Kgs
Overall benefit of 8 to 10 % with Grodal Syncool 2
At Growel, automation is at the heart of all our plating plants. Keeping this in mind our team, in technical collaboration with Utikal Automation Germany, is working with GalvCon V4.0, a PC-based software exclusively developed for atomization of surface finishing processes. The software is developed to be rich in features and provide ease in operation even when there is a need for replacement and modification.
This automation package is developed in such a way that the “intelligent part” of the software is written on the PC whereas the “driving program”, which rarely requires any changes, is written to the PLC. A highly reliable and powerful TCP/IP connection is established with Siemens S7 controller which requires no special drivers or third-party software for communication.
Initiating the plant operation is as easy as
entering the article number and quantity to be loaded, the software initiates
the cycle with minimum manual intervention.
Each article is pre-assigned with a unique process flow program (sequence of movement with time) and a power program (current density setting). Every article is capable of having a different process flow and current density program. The system has no limitation on the number of articles and their subsequent programs. The process program is designed to include parameters such as order of the baths, residence times, current setting in electrolytic baths, automatic dosing, temperature control in heating/cooling baths, and control of accessories along with visualization. The most powerful feature of this software is the capability of having flexible cycles. With this feature different articles having different process flow programs (different articles need to be processed in different baths with different timings) can be loaded onto the plant as per the user’s output demand.
The software is designed in such a way that the operator is allowed to load articles randomly as required and the intelligence of the software will decide the right sequence of the flight bar movement in the plant. The loaded flight bars may be temporarily stored at the buffer station or maybe directly taken for processing. The software will calculate the most efficient sequence of flight bar entry into the plant ensuring the most optimal usage of the baths and the transport wagons.
GalvCon V4.0 enjoys the following features
and advantages:
Multi-level Password protection for avoiding operator level errors.
Multiple computers can be connected in the network for visualization but only one PC has the master process control.
Remote system connectivity is possible for process and status visualization through the Internet.
A special Loading terminal can be provided, to select the article while loading with visual identification.
Vast flexibility for process control.
Software can be quickly tailored to suit user needs.
Process and current programs can easily adapt to change in plant structure.
In the early days of glass processing, water was used as a coolant and lubricant. However, the use of diamond-tipped tools in glass processing with only water as a coolant led to the following problems in glass grinding operations:
Marked decrease in process
efficiency
Runaway cost escalation on
account of rapid wear and tear of diamond tools.
Extensive corrosion of
plant & machinery
Undesirable pH increase of
the grinding solution
Due to the brittle nature of glass and the stresses of glass grinding, the coolant used to aid the grinding process has to fulfill a number of requirements. As an example, fine glass particles are produced during the grinding process which instead of settling at the bottom, remains suspended in the water thereby reducing the effectiveness of the water to act as a coolant. In addition, these glass particles had an abrasive effect during the operation, creating unacceptable scratches on the toughened glass.
Rising to the needs of the industry, Growel has specifically designed a high-performance grinding fluid/coolant- GRODAL GLASS 339 which now eliminates these problems.
GRODAL GLASS 339 is a synthetic coolant concentrate based on ester additives that are designed to cool and lubricate extreme machining operations on flat toughened glass such as edge grinding, drilling, milling, etc. Exceptional Bio-Stability permits operation with hard water up to 450 ppm. It keeps the tools clean and allows the glass powder to settle easily.
GRODAL GLASS 339 – APPLICATION
GUIDELINES
Stir with water in the desired
(usually 0.2% to 0.5%) ratio to a homogeneous solution.
For a higher lubricity ratio, it can be increased to 1 – 1.5%.
Special additives in the Grodal Glass 339 keeps the surfaces of the diamond tool sharp. This in turn maintains grinding performance and substantially reduces glass processing time. The absence of these vital additives would necessitate the frequent replacement of the diamond tool, thereby leading to an exponential rise in operation cost.
One of Grodal Glass 339’s many real-world application successes includes the case study of one of our key customers engaged in the manufacture of mobile phone scratch guard glass. Their organization was using an imported cutting fluid @ 2.5% concentration level resulting in their use of 140-150 liters of fluid daily. Upon switching to Grodal Glass 339 at 1.5% their consumption reduced to 80-90 liters daily. Our customers also reported a marked reduction in the amount of fuming they were experiencing during cutting operations. Advantages ranged from the locally available and as-needed supply of cutting fluid to the measurably superior performance of the Grodal Glass 339.
