Category: News

Abrasion resistant ceramic liner with various of shapes are supplied for industrial machine wear protection. Conveying pipeline lined ceramics is typical application. Chemshun Ceramics manufacturer produces pipe liner with mosaic tiles , pipe tube, trapezoidal tile etc. Based on long-time pipe liner designing and producing experience, Chemshun technicians will suggest suitable elbow bends pipe for customers’ delivery steel pipeline.

 Ceramic bend pipe liner are generally divided into shrimp bends and integrated seamless bends. How to choose the type for specific working conditions ?

 1. If the pipe diameter is below 100mm and required ceramic thickness is 4-6mm, Chemshun recommend integrated seamless elbow to the customer. The ceramic lining used is alumina mosaic tiles. At this time, the gap between the ceramics exceeds 2mm, and the ceramic is subjected to only adhesive force.

 2. If Ceramic elbows ID 100mm or more ,needed ceramic thickness is 10mm,elbow of the shrimp joint is recommended to you.Trapezoidal plates with 15-25mm thickness are applied with no gap between the ceramics . The ceramics are not only affected by the adhesive force but also the mutual pressure between the ceramics, which is more firm.

Pipe liner with silicon carbide ceramics materials are also supplied , welcome your inquiry .

How long can wear resistant ceramic tile use ? This question cannot be answered casually. The thickness of the ceramic plate is different, the working conditions and even the frequency of use will greatly affect the service life of the wear resistant ceramic tile lining

First of all, let's have a general understanding of what wear resistant ceramic tile is? Abrasion resistant ceramics is a special ceramic with a relatively dense structure and special properties. Its main component is alumina powder, which is sintered at high temperature. Due to its compact structure, it has the advantages of high melting point, high hardness and good wear resistance.

In addition to its own quality, the service life of wear-resistant ceramic linings is related to external factors, which mainly include friction mode, environment, load, flushing speed, temperature and time. In summary, it is the working condition.

The wear of wear-resistant ceramic linings is generally divided into cutting wear, fatigue wear, adhesion wear, abrasive wear, impact wear, etc. Since the working principle of each wear is different, the wear mechanism is also quite different, but in In practical applications or experiments, they often do not act in isolation, but interact and influence each other. Sometimes one mechanism is obvious, and sometimes two or more mechanisms work together. In general, the smaller the particles, the lower the concentration, the lower the flushing speed, and the longer the service life of the wear-resistant ceramic sheet.

Usually, in the network pipe of the slag powder production line, the 20mm wear-resistant ceramic lining can be used for 8 to 10 years. Raw and clinker mills are easier to grind than slag. Generally, 20mm wear-resistant ceramic linings can be used for 8 to 10 years in the network pipe of the slag powder production line. The raw material mill and clinker mill are easier to grind than the slag, and the wear-resistant ceramic lining of the same thickness has a service life of more than 10 years.

In terms of wear-resistant elbows for powder feeding pipelines in power plants and wear-resistant elbows for powder feeding pipelines in coal-fired thermal power plants, ceramic patch wear-resistant elbows: divided into mutual pressure welding type (the thickness of lined ceramic sheets is 4-8mm) and self-arching Ring type (lined with ceramic sheet thickness 10-25mm) two. Service life: The actual service life of the wear-resistant elbow of the powder feeding pipeline is not less than a power plant overhaul period.

Therefore, the service life of wear-resistant ceramics should be determined according to the actual working conditions.

                                                 

Pingxiang chemshun ceramics Co., Ltd produced 92% and 95% alumina wear-resistant ceramic with special corundum structure, the main raw material is alumina powder import from Australia and France, Shaped by the press, firing at 1500-1650℃ high-temperature roasting.

The hardness of chemshun wear-resistant ceramic plate (HRA) is ≥89, and its wear-resistant function is more than 10 times that of high-chromium wear-resistant cast iron alloy pipe fittings. The 5mm-30mm thick ceramic layer is selected, and its practical wear-resistant service life is equivalent to the minimum 50mm thick wear-resistant cast steel. The alumina ceramic plate has excellent anti-corrosion function to different corrosion media, and it is resistant to acid, alkali, salt, and other strong corrosion media and halide corrosion characteristics. Aluminum oxide is a neutral oxide. It can't react with acid, alkali or salt. Aluminum oxide is an inorganic material. Under the effects of light, heat, oxygen and other natural environments for a long time, there is no deterioration (aging) problem. The corrosion resistance of chemshun wear-resistant ceramic pipeline is ten times higher than that of stainless steel. Wear-resistant ceramic itself can withstand the high temperature of more than 1200 degrees Celsius, after reasonable planning and selection of different composite methods, the wear-resistant ceramic pipe can run for a long time in the humidity range of -50℃ to 800℃, especially suitable for lining of the high-temperature burner and other equipment.

Once you need more information welcome to contact with us [email protected].

The biggest feature of the wear resistant ceramic pipe is that a layer of wear resistant ceramic is compounded inside the steel pipe. The wear resistant ceramic itself has high hardness, high strength, and has a very smooth surface. It has many superior properties. So, is the wear resistant ceramic pipe resistant to erosion?

To evaluate whether the wear resistant ceramic pipe is resistant to erosion, it is first necessary to understand several key factors that affect the erosion resistance of the pipe-hardness, smoothness, gap size and scouring angle.

Hardness: The hardness of the lining of the wear-resistant ceramic tube is above HRA85, second only to diamond, and the amount of wear in the material scouring is very small, which is the basis for its resistance to scouring.

Smoothness: The smoothness determines the friction between the material and the pipe, and the wear-resistant ceramic itself is dense and has almost no pores. It has to be polished many times during the production process. The smoothness is very high and it is resistant to erosion. Excellent performance.

Gap size: Many wear resistant ceramics inside the wear resistant ceramic tube are compounded with the pipe by the method of pasting, which leads to gaps between the wear resistant ceramic sheets, and the material erosion often damages the pipe from these gaps, so If the gap is small, the erosion resistance of the pipeline is strong. When the Chemshun wear resistant ceramic tube is applied to the porcelain, fillers are used to fill the gap, which further improves the erosion resistance of the wear resistant ceramic tube.?

Scouring angle: In material scouring, the right angle is the impact angle with the greatest impact, while the wear resistant ceramic tube can pass through trapezoidal angles, etc.

In summary, the wear-resistant ceramic tube has excellent erosion resistance.

 

Detailed analysis of toughening technology of wear resistant ceramics

For alumina ceramics, it has very high temperature resistance, corrosion resistance, wear resistance and many other advantages. It is also an industrial ceramic material with relatively large production capacity in the world.
To alumina pottery and porcelain, it is in machinery, electron, car, still have instrument instrument, chemical industry, chemical fiber to wait for a lot of application speech is commendable.

For the application of alumina wear resistant ceramic, in fact, it is because of its own brittleness to the application of the limit.
This is mainly determined by the structural characteristics of our materials.
For the chemical bonds in ceramic materials, they are mainly covalent bonds and ionic bonds. For the two types of chemical bonds, they have a strong directivity, and a high bonding strength will lead to difficult plastic deformation, great brittleness and strong crack sensitivity.

It is for these reasons that we are also concerned about improving the toughness of alumina ceramics lining.
In the near future, we will be able to add some reinforcing materials such as grains, whiskers and fiber to the ceramics in the past, so that the toughness of our wear resistant ceramics can be greatly improved, and the strength and modulus of our ceramics can also be improved to a certain extent.

In terms of toughening methods for wear resistant ceramics, the main ones are particle toughening and whisker toughening.
The toughening principle is actually very simple.
The main thing is that if you take its enhancer and its surrounding matrix, you can create a residual stress field, which is very effective in preventing crack growth and increasing toughness.

Next, in terms of the toughening principle of alumina ceramics, we should pay attention to the nailing action of its microcracks, as well as its crack tip and its tail effect.
On the other hand, the enhancement would cause the stress at the crack tip to relax, which would be beneficial to slow down the crack growth. From the above aspects, the toughening principle of our wear resistant ceramics.

 Grinding is the basic process of powder deep processing. The grinding process is not only a refining process, but also a mixing and homogenizing process. According to different classification standards, grinding media can be divided into many types, such as spherical, rod-shaped, roll-shaped and irregular according to their shapes. Among them, spherical grinding media are widely used in various ball milling equipment and ball milling machines. In mineral processing, building materials, electric power, chemical industry, cement and other fields. Common materials for spherical grinding media are alumina, zirconia, zirconium-aluminum composite, zirconium silicate, silicon carbide, glass, etc.

 

(1) Metals

 Metal grinding balls are mainly steel balls and alloy balls, but because they have not undergone heat treatment, their hardness is very low and their wear resistance is poor. In the later stage, non-chromium alloy grinding balls are gradually developed. When the content of chromium is low, the toughness is higher. Poor but good wear resistance, low price, high chromium grinding balls with high chromium content have better performance. Metal balls are usually used for grinding in large industries such as cement and coal mines.

 

(3) Alumina ceramics

 Grinding media is an important part of the grinding process, so there are higher requirements for the performance of grinding media balls. Ceramic grinding bead balls are resistant to wear, high hardness and high temperature. Nowadays, alumina ceramic balls with higher cost performance and better performance have been widely used in cement, building materials, household ceramics, sanitary ceramics and other fields.

 

(4) Zirconia ceramics 

 Zirconia ceramic balls  have good wear and corrosion resistance, making them ideal for wear-resistant structural ceramics. Due to the excellent properties of zirconia ceramic sphere, it has a wide range of applications. In terms of high temperature resistance and corrosion resistance, it can be used in steel, chemistry, automobiles, vacuum equipment, motors, etc. In the high-speed machinery industry, it can be used in machine tools, automobiles, aircraft, satellites, electric motors, general industrial machinery, and vacuum equipment. Zirconia ceramics have good mechanical properties and are widely used as engineering structural materials. The life stability of zirconia ceramic bearings is higher than that of traditional sliding and rolling bearings, with higher wear resistance and corrosion resistance; zirconia ceramic valves can effectively replace traditional metal alloy valves, especially in harsh working environments, Effectively reduce wear and improve corrosion resistance, thereby greatly increasing the service life. Zirconia ceramic grinding balls are widely used in various grinding machines.

Experts say gold price ready to rise further as global bubbles look set to burst.

The victory of the Democrats in the US presidential election will likely see a rise in the price of gold.

That’s the belief of gold expert Tony Coleman, managing director and founder of NZ Gold Merchants Ltd, who has two main messages for would-be investors: Winter is coming (to paraphrase hit TV show Game Of Thrones) but gold has plenty of summer left in it yet.

Coleman says Joe Biden’s accession to the presidency will likely do what normally happens when the Democrats gain control of the US economy: “We will see a tremendous amount of fiscal stimulation now the Democrats are in. They like spending money, so I expect to see expansion of the central bank balance sheets.

“That will be inflationary and, as there will be more currency and assets, so the price of assets [like gold] must go up,” he says.

Last year there was a 35 per cent increase in the gold price, Coleman says, adding that this year’s overall increase will be about the same. But he thinks 2021 could see a 40-45 per cent rise.

Gold, he says, is still in a growth phase – out-performing stocks and shares if measured over a 15-20 year period since 2000 (though shares clearly out-perform gold if measured over a longer period, like 100 years).

An Investopedia analysis published in September tracked the performance of gold and shares in recent decades, with gold increasing by about 360 per cent from 1990 to 2020. In the same period, the Dow Jones index gained 991 per cent. However, measured from 2005 to 2020, gold increased in price by 330 per cent, with the Dow Jones putting on 153 per cent.

But, perhaps even more importantly, Coleman says gold is low-risk, providing an effective shelter if and when a wintry financial storm affects world markets.  Gold prices often go up in tough times as investors look for a safe haven if investments like shares and property are in a downward spiral.

“Gold does very well when there is instability,” he says, “and I believe we will be going into six or seven years of global instability. What we have seen over recent years is a move from risk-free interest to interest-free risk – and that’s created global bubbles.

“Companies and investors have taken on more and more risk to get a return, using leveraged positions – so if the proverbial hits the fan, many will lose their shirts. Gold, however, is essentially devoid of risk.”

The sharemarket is in a bubble, so is property, he says, and banks and government s around the world will try to stave off financial collapse by printing money and borrowing. If the crash comes, the gold price will benefit; if governments keep putting more money into the system, the gold price will benefit, Coleman says.

“We are not saying that people should put all their money into gold. Our advice is always that it should be part of your investment portfolio – and anyone who’d done that over the last 15-20 years would have done a lot better, because gold balances out the negatives.

“I personally believe we’ll see, as people and companies take more risk to get a return, that less risky investments will come up to balance things out.”

Financial history proves that no fiat currency has ever survived the test of time, they have all failed, says Coleman: “Gold protects your wealth from such events, and we consider it the ultimate insurance in times of monetary quackery, a good hold in a financial portfolio.”

The mean average for investment in gold is approximately 3 to 4 per cent current investment in gold as a percentage of global finance.

“Right now gold is at at 0.3- 0.5 per cent, so a move back towards the mean average of gold will have a dramatic lifting effect on the gold price.”

*NZ Gold Merchants began in 1975 and brothers Tony and Richard Coleman began buying, refining and selling gold and trading in precious metals in 2006. They were the first New Zealand company to produce local silver bars and the first to offer gold chain manufactured with local gold.

View Original Article https://www.nzherald.co.nz/brand-insight/why-the-us-election-is-good-for-gold/E3XX6K6KWB2FQ5VG4AA6WJLDWM/

 

A message from Tony Coleman, Director

Our business is still operating

The lockdown has had an impact on our business, with the refining and manufacturing operations temporarily closed during Level 4, meaning we have had to import more gold and silver products than we usually would and are experiencing a backlog in fulfilling orders.

As New Zealand’s only primary dealer for ABCBullion® Australia (a LBMA certified company) we are currently utilising our Trans-Tasman supply line to meet our obligations to our clients and we’re also in the process of comissioning new production equipment which will increase our capacity considerably.

International Shipping Gold

NZ Gold Merchants’ new moulds for the induction vacuum casting bar making furnace (showing 1 Oz gold and 1 Kg silver).

We are receiving deliveries of raw and manufactured gold on a daily basis, as these parcels are small, and we can find freight space.

International Shipping of Silver

Silver is a different story, due to the very limited airfreight available, and the significant weight of the consignments, all the silver we normally import is waiting for freight availability, so we are currently vaulting it in Sydney until supply lines ease. This bottle neck is the major reason we see a longer delay for silver deliveries than gold.

Limited Availability

Many will have noticed our normally extensive range of product offerings has been reduced to a limited offering of Australasian (NZ PURE® and ABCBullion®) products. This is due to European and North American suppliers being impacted by significant production delays and closing their business to new orders while they look to catch up in what can only be seen as a difficult manufacturing environment. We will not look to include any northern hemisphere product until we can purchase “Ex Stock” to reduce risk to our customers. All gold sold by us is 99.99% pure, so please be assured that you will always get quality regardless of brand.

Increased Margins on Gold and Silver

We have experienced increased margins on all gold and silver in the past month, this is due to increased production and delivery costs, together with a wider spread on the precious metals and currencies due to extreme volatility, although these margins are not at their peak, they still persist. If the markets show some normality, we expect these loaded margins to ease.

NZ PURE® Gold and Silver

New Zealand Gold Merchants Ltd is the proud manufacturer of New Zealand’s premier bullion products, and this trademark has been in service since 2006, and before this time the CimeT® trademark was used. We have been manufacturing gold and silver bullion for 45 years and work to consistently bring quality product to the market at competitive prices. Following lockdown, we have a large backlog of orders awaiting manufacture. We have plans in place to mitigate the production delays. New production plant is in the process of being commissioned and this will give us a 500% increase in capacity when fully operational, ensuring we can maintain our competitive margins and reduce future production delays.

Financial Strength

NZ Gold Merchants is well positioned to weather this Covid-19 lockdown – our balance sheet is strong and our cashflow excellent. We are a private company that has reinvested continuously to ensure state of the art production equipment and systems. We foresaw the future in 2008 when we experienced the global financial crisis and started work on building the security that clients would expect of a company working in an industry whose very purpose is look after the financial health of its clients.

Insurance

All gold and silver held on the premises and in transit is fully insured. This includes product stored on behalf in our client vaulting system, as well as the company’s gold and work in progress.

Bricks and Mortar

We are not just an office, a website, and a couple of sales people – we have significant assets; a refinery for processing gold and silver, vacuum manufacturing, assay facilities, a customer vaulting system and the professional people to make it all work.

Delivery Delays

With all I have said to put your mind at ease and help you sleep at night, only holding your gold and silver in your hands will satisfy you.  We will be hampered by delays in delivery and manufacturing because we can only work within the law. Now that we are back at level 3, we are compiling orders and manufacturing the product that we were unable to complete before lockdown. We will keep pushing for freight space to get silver into the refinery so we can get on top of those orders too.

Stock

We usually hold enough stock to meet current delivery obligations (as gold and silver is coming through refining constantly). Like most businesses, when demand surges (especially the size of recent events) we take orders from our clients and have to order additional products form our international suppliers. Silver, due to its value, is pushed back in the production schedule to allow us to focus on gold production first. Going forward, we can expect gold orders to be completed before most silver, so apologies in advance to our silver customers. That said, I understand this was relayed to you at the time of purchase.

Finally

We are in this journey with you; we understand your anxiety and are working diligently to meet the demands placed upon us.

DON’T PANIC, we’re not, we are working to normalise things.

Tony Coleman

Director and Major Shareholder

New Zealand Gold Merchants Limited

Pingxiang Chemshun Ceramics Co.,Ltd held annual summary commendation congress on Jan 14th. During conference, president Mr Zhong and CEO Cathy Yi announced the statistics of 2021 whole work, including total sales, management costs, production costs, staff training costs, year- end awards distribution etc.

Chemshun Ceramics as alumina ceramic abrasion resistant tile linings supplier company, exported series of wear resistant ceramics for 19 years, also helped industry companies with many equipment wear damage problems. 2021 Chemshun Ceramics achieved the goals set out at the beginning of the year, which is the fruitful results obtained from all the staff's efforts.

During 2021 year, all of colleagues worked hard and were awarded as outstanding employee, two employee working for more than 10-year were awarded with gold medal.

2021, Chemshun Ceramics team will continue to work hard and offer you professional wear protection/ wear solution consult, ceramic wear liner design and installation. Chemshun collegues have prepared to struggle, dear customer, are you ready?
Welcome to visit website: www.chemshun.com
Contact us: [email protected]     Tel: +86-799-6790781

 

Chemshun Ceramics—best partner of wear resistant ceramic

1.Tailor made engineered ceramic tiles available: Pingxiang Chemshun Ceramics Co.,Ltd has its own design group to make all kinds of wear resistant ceramic products to accept the custom size and shape from our customers.
2.Accept OEM&ODM wear engineered ceramics and project: We manufacture, we process, and we sell and we serve by ourselves, we always keep a very professional production team for wear resistant ceramic liners.
3.Provide professional industrial wear consult and solution: We accept to offer customers a systemic wear resistant solution for their engineering or mining, we will recommend our customer the suitable wear resistant ceramic products for exact environment and temperature .
4.Accept small & big order quantity orders: Our factory has no MOQ for our products, sample order is also acceptable to customers.
5.Delivery fast: We have our shipping agent in Shanghai, Guangzhou, Shenzhen and Qingdao, so that we can ship the goods according to customer’s shipping-port requirements, and we also accept international express for small and delivery fast by door-to-door service.