Classification and application of grinding balls

 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.


Keyword: ceramic balls

Why the US election is good for gold

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/

 

Don’t panic!! … and carry on

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

Chemshun Conference of 2021 Summary Commendation & 2022 Work Sta

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

 

Keyword: ceramic balls

Chemshun Ceramics—best partner of wear resistant ceramic

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.

Keyword: ceramic balls

从内山书店看日本的中国动漫热

  “日本读者十分关注中国社会文化,特别是这些年,购买中国漫画、小说的读者变多了。”在日本东京的内山书店,店主内山深告诉新华社记者,在当今日本读者喜欢的漫画中,中国作品出现频率越来越高。

  位于东京都神保町的内山书店最初于1917年在中国上海开设,至今已有100多年的历史。内山深是书店的第四代传人。据他介绍,来店里购书的顾客,日本人约占八成,中国人约占两成。

  近年,给内山深留下深刻印象的中国动漫是《罗小黑战记》。2020年,《罗小黑战记》电影登陆日本院线,收获37.5万人次观影、5.8亿日元票房的成绩,位列年度日本动画电影票房第9名。

  内山深回忆说,最初一位20多岁的日本女读者想要订购《罗小黑战记》漫画书,书店才决定进货,至今一直有很多日本书迷前来购买。大家都觉得“罗小黑”画得很可爱,动漫里也蕴含了很多中国文化要素。

  内山深今年50岁,自1998年开始打理书店,至今已有24年。他说,店里以前也卖中文漫画书,但内容多是翻译成中文的日本作品,读者一般用来学中文。但近年来,中国作者原创的漫画书籍不断增加。

  据介绍,2016年,漫画在内山书店总销售额中所占比重为5.6%,到了2021年,该比重已增至18%。2021年,书店中文漫画销量也为2016年的2.7倍。

  日本年轻一代,特别是女性,十分青睐中国漫画,尤其是古风漫画。记者在书店畅销区看到,除《罗小黑战记》外,书架上还放着《非人哉》等其他多部中国漫画作品,不时有顾客翻看购买。

  内山深拿起一本《新手学古风美少女漫画技法》介绍说,很多人来买这套书,因为喜欢漫画的人往往也会自己动手绘画。“有客人专门为了看中国漫画而学习中文和中国历史。”

  日本是动漫大国。近年来,具有鲜明中国文化特色的作品开始在日本市场崭露头角。以中国原创漫画改编、中日合作推出的动画《灵剑山》《一人之下》2016年相继在东京首都电视台播放;2017年9月,中国漫画《快把我哥带走》在知名漫画网站“少年JUMP+”连载。

  看动漫是很多国家年轻人的共同爱好,他们在交流中自然接触到他国文化。内山深说:“一些日本读者在购买中国漫画等书籍时,就是对作品本身感兴趣。以此为窗口,他们希望了解更多中国文化。”


责任编辑:王风

Keyword: 美丽中华网

77 VB Edition Liquorice & Citrus 20mg

Description

77 VB Edition Liquorice & Citrus 20mg – Enjoy the fantastic combination of Liquorice combined with a dash of sweet citrus with 77 Liquorice & Citrus VB Edition.

This novelty offers a strength of 10 mg of nicotine per pouch and a taste explosion of a Nordic favourite, Liquorice combined with citrus. Give your snuff a sweet touch with this delicious slim sized tobacco free snus.
77 VB edition is designed with F1 icon Valtteri Bottas in focus. Valtteri Bottas also adorns the visually appealing box.

FACTS

Weight: 10 grams

Flavor: Liquorice, Citrus

Nicotine: 20 mg/g ( 10 mg per pouch)

Pouch size: Slim

Number of pouches: 20

Pouch Weight: 0,5g

Texture: Moist

Available in: Single cans, Rolls (10 cans)

Manufacturer: 77 nicotine pouches

Chemshun 2021 Mid-year Summary Conference

On July 17, 2021, Pingxiang Chemshun Ceramics Co., Ltd. successfully held the 2021 mid-year summary conference, and all employees of Chemshun participated.

The conference first summarized the work situation of Chemshun in the first half of the year, analyzed the sales and after-sales service, management, culture, etc. compared with the same period of last year, and conducted research on Chemshun ceramic products such as alumina wear-resistant ceramics, filler ceramics, etc. Analysis, all employees have gained a lot.

Next, Mr. Zhong, Chairman of Chemshun Ceramics Company, made a summary speech on the work of the first half of 2021, and made an overall layout of the work tasks and plans for the second half of 2021.

Half of 2021 has passed. In the second half of the year, Chemshun will continue to improve itself and provide customers with better services!

Keyword: ceramic balls

77 Strawberry Light Slim 4mg

Description

77 Strawberry Light Slim 4mg – This nicopod gives you a sweet feeling under the lip with a flavour of Strawberries, here with a nicotine content of 8 mg per gram.

FACTS

Weight: 10 grams

Flavor: Strawberry

Nicotine: 8 mg/g (4 mg per pouch)

Pouch size: Slim

Number of pouches: 20

Pouch Weight: 0,5g

Texture: Moist

Available in: Single cans, Rolls (10 cans)

Manufacturer: 77 nicotine pouches

Keyword: nicotine pouches

Our New, Sophisticated CMM | Astro Machine Works

At Astro Machine Works, we believe technology and innovation are the foundations of quality manufacturing and are some of the biggest reasons why this country’s manufacturing industry is as good as it is. Therefore, we are always focused on advancing our capabilities through the latest technology, and we are never content to sit back and rest on past success.

As an example, we recently installed an Omni-Tech refurbished 20.12.10 LK G80C Coordinate Measuring Machine (CMM) in our inspection room, significantly increasing our quality control. The machine—manufactured by the same company who makes CMM machines for NASA—was built with us and our work in mind.

Made with advanced CMM controls by Renishaw, the leader in CMM innovation, its features include: PH20 5-axix infinite probing technology; UCC 2 CMM controllers; advanced CMM-Manager Software that creates programs directly from 3D CAD models; a fully-integrated measurement system, and more. The 5-axis PH20 technology means time-consuming indexing is a thing of the past, while its infinite positioning capability provides easy and optimum access to features at any angle.

So what does this completely new capability mean for us? It now allows us to inspect complex parts that typically can’t be checked dimensionally with normal inspection equipment. The sophisticated machine can be used during virtually any part of the manufacturing process, and it can be programmed per drawing.

Finally, what does this mean for our clients? While we’ve always been a company with impeccable quality control, this enhances our inspection and quality even more. This means that the machines and parts we make for you will be that much more precise.

In our ongoing commitment to investing in technology, we are proud to add this to our capabilities and to know that our customers will directly benefit from our latest addition.

Categories: American Manufacturing, Manufacturing

Keyword: cnc turning