Unclassified

How to use ChatGPT(The newst openAI): Everything you need to know

The new AI language processing tool has been trending since its launch late last year, but how do you use it and what for?

Even if OpenAI is constantly working to fine tune ChatGPT, keep in mind that it and other language models can provide false information when answering questions, as AI tools are not flawless, and it’s no replacement for human interaction or verified sources of information.

1. Create an OpenAI account

Go to chat.OpenAi.com and register for an account with an email. You need to create an account on the OpenAI website to log in and access ChatGPT. 

OpenAI account

Creating an account on OpenAI will give you access to ChatGPT.

2. Accept ChatGPT terms

nce you’ve logged into your OpenAI account on the ChatGPT side of the website, it’s time to read through the terms and disclosures for ChatGPT and click on Next. Click on Done when you reach the last one.

ChatGPT screenshot

3. Start writing

Now that you know how to log into and access ChatGPT, it’s time to get started with it and ask the language model any burning questions you may have and see what kind of answers you can get.

More ChatGPT prompt examples

ChatGPT can generate responses to prompts (a feature that could eventually challenge search engines) well enough to become an important tool for content generation; write and fix code, make calculations, translate information, and more.

  • What is quantum physics?
  • Write a poem about a headache in the style of Walt Whitman.
  • Write a country song about a dog named Speckles who loves to run.
  • Summarize the Pride and Prejudice book for me.
  • Write a sick note for my child missing school.

What can we use ChatGPT for? 

  • Write a song about [insert topic here] — Try adding multiple details. 
  • Write a poem about [insert topic here] — Again, add as many details as you can think of.  
  • Ask it philosophical questions. 
  • Ask it to summarize ideas or concepts.

Does ChatGPT give everyone the same answer?

Most of the time, when different people ask ChatGPT the exact same question, they will get the same answer. There may be a few word variations, but they will be almost identical. The trick is that several people must word their questions exactly the same for this to happen.

If you want to ask ChatGPT, How can I look for a solder wire manufacturer? You can contact https://solder1.wordpress.com/

 

Unclassified

Composition of Solder Wire

Solder is a fusible alloy used to join less fusible metals or wires, etc. Solder is sold in spools of wire or in bars. Solder wire is comprised of different alloys, or of pure tin. Each metal requires a certain type of soldering wire to create strong bonds, because the combinations of metals that comprise soldering wire melt at different temperatures.

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https://solder1.wordpress.com/

Leaded solder Compounds

Soft soldering wire that contains lead is comprised of combinations of tin, lead, silver, cadmium and copper. Combinations of tin and lead are most common, in ratios of 60 percent tin/40 percent lead; 63 percent tin/37 percent lead; and 50 percent tin/50 percent lead. These solders melt in a range from 361 to 421 degrees with the higher the percentage of lead, the higher the melting point.

Lead-Free sodlering Compounds

Lead-free soldering wire is comprised of various combinations of tin, copper, silver and antimony. Pure tin wire has the highest melting point of 449 degrees. Other combinations of metals melt in a range between 419 and 441 degrees.

Uses

Lead-free soldering wires include varieties with “no clean” flux that are used in electronics. No clean flux does not leave a residue of foreign particles after fusing. Stainless steel requires an acid core soldering wire. Rosin core wire creates bonds with extra strength.

Cost

Leaded solder wire is less expensive than lead-free solder wire. Prices vary according to the metallic content of each alloy, and the size of the spool.

We can offer all kind of solder wire base on your need . Welcome to send enquiry to us .

Indium wire · Solder wire · Unclassified

Indium In97Ag3 Solder wire manufactuer in China with good price

Indium Solder wire manufactuer in China with competive price

The indium In97Ag3 solder wire features 97% indium content and a few impurities less than 0.2g. It has good weldability and nice oxidation resistance. The wire features excellent weldability and oxidation resistance, making ideal for both wave soldering and dip soldering processes. Due to the high purity of the material, it provides outstanding fluidity during the soldering process and is widely used for die-attach applications.

Indium sodler wire Specifications

ItemSpecificationStandard
AppearanceSmooth surface, no impurity
Alloy compositionInAg3 (Ag: 3%)
Liquidus temperatureAbout 144℃DSC method
Sp. Gr.7.40g/cm3
Tolerance of wire diameter0.3-0.8±0.03mm; 0.8-2.5±0.05mmGB/T 20422-2006
ApplicationSuitable for welding electronic parts
Package weightBy mutual agreement
Preservation methodMust be placed in a dry, non-corrosive environment without sunlight. Warranty for 2 years.
Indium cable
http://Solder wire

Alloy composition(%)

No.ProjectResultStandard
1Tensile testQualifiedGB/T 28770-2012

Solderability test

InAgCuBiSbZnPbAuNiFe
Remainder2.5~3.5≤0.05≤0.10≤0.10≤0.001≤0.10≤0.050.01≤0.02
AsAlCdTotal impurity
≤0.03≤0.001≤0.002≤0.2

Indium Solder wire factory from China , Offer all kinds of solder products . Welcome to enquiry .

Solder wire

Sn42In58 Indium Solder wire Supplier

The Sn42In58 indium solder wire features a tin content of 47.5~48.5% and minimal impurities (less than 0.2g). The wire features excellent weldability and oxidation resistance, making ideal for both wave soldering and dip soldering processes. Due to the high purity of the material, it provides outstanding fluidity during the soldering process and is widely used for die-attach applications.

Indium Solder wire factory from China , Offer all kinds of solder products .

Indium Solder wire
Indium Solder wire,Solder bar

Specifications

ItemSpecificationStandard
AppearanceSmooth surface, no impurity
Alloy compositionS-Sn48In52GB/T 20422-2006
Liquidus temperatureAbout 118℃DSC method
Sp. Gr.7.31g/cm3
Tolerance of wire diameter0.3-0.8±0.03mm; 0.8-2.5±0.05mmGB/T 20422-2006
ApplicationSuitable for welding electronic parts
Package weightBy mutual agreementGB/T 20422-2006
Preservation methodMust be placed in a dry, non-corrosive environment without sunlight. Warranty for 2 years.

Alloy composition(%)

SnAgCuBiSbInZnPbAuNi
47.5~48.5≤0.10≤0.05≤0.10≤0.10Remainder≤0.001≤0.10≤0.050.01
FeAsAlCdTotal impurity
≤0.02≤0.03≤0.001≤0.002≤0.2

Solderability test

No.ProjectResultStandard
1Tensile testQualifiedGB/T 28770-2012
Solder wire

In99.9 Indium Solder wire manufacturer

In99.9 Indium Solder wire factory from China , Offer all kinds of solder products

Indium Solder wire
Indium Solder wire,Solder bar

Specifications

ItemSpecificationStandard
AppearanceSmooth surface, no impurity
Alloy compositionIn9999YS/T 257-2009
Liquidus temperatureAbout 156℃DSC method
Sp. Gr.7.31g/cm3
Tolerance of wire diameter0.3-0.8±0.03mm; 0.8-2.5±0.05mmGB/T 20422-2006
ApplicationSuitable for welding electronic parts
Package weightBy mutual agreementGB/T 20422-2006
Preservation methodMust be placed in a dry, non-corrosive environment without sunlight. Warranty for 2 years.

Alloy composition(%)

InCuPbZnCdFeTlSnAsAl
≥99.99≤0.0005≤0.001≤0.0015≤0.0015≤0.0008≤0.001≤0.0015≤0.00050.0007

Solderability test

No.ProjectResultStandard
1Tensile testQualifiedGB/T 28770-2012
Unclassified

The proximal origin of SARS-CoV-2

SARS-CoV-2 is the seventh coronavirus known to infect humans; SARS-CoV, MERS-CoV and SARS-CoV-2 can cause severe disease, whereas HKU1, NL63, OC43 and 229E are associated with mild symptoms6. Here we review what can be deduced about the origin of SARS-CoV-2 from comparative analysis of genomic data. We offer a perspective on the notable features of the SARS-CoV-2 genome and discuss scenarios by which they could have arisen. Our analyses clearly show that SARS-CoV-2 is not a laboratory construct or a purposefully manipulated virus.

Notable features of the SARS-CoV-2 genome
Our comparison of alpha- and betacoronaviruses identifies two notable genomic features of SARS-CoV-2: (i) on the basis of structural studies7,8,9 and biochemical experiments1,9,10, SARS-CoV-2 appears to be optimized for binding to the human receptor ACE2; and (ii) the spike protein of SARS-CoV-2 has a functional polybasic (furin) cleavage site at the S1–S2 boundary through the insertion of 12 nucleotides8, which additionally led to the predicted acquisition of three O-linked glycans around the site.

1. Mutations in the receptor-binding domain of SARS-CoV-2
The receptor-binding domain (RBD) in the spike protein is the most variable part of the coronavirus genome1,2. Six RBD amino acids have been shown to be critical for binding to ACE2 receptors and for determining the host range of SARS-CoV-like viruses7. With coordinates based on SARS-CoV, they are Y442, L472, N479, D480, T487 and Y4911, which correspond to L455, F486, Q493, S494, N501 and Y505 in SARS-CoV-27. Five of these six residues differ between SARS-CoV-2 and SARS-CoV (Fig. 1a). On the basis of structural studies7,8,9 and biochemical experiments1,9,10, SARS-CoV-2 seems to have an RBD that binds with high affinity to ACE2 from humans, ferrets, cats and other species with high receptor homology7.

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Caring for yourself and others who have, or may have, COVID-19 at home Solder factory advise

This provides information for people who have:

  • confirmed, probable or suspected COVID-19, who do not need to be hospitalised
    and
  • confirmed COVID-19 who were hospitalised and for whom hospitalisation is medically not required anymore.

If your health care provider has determined that you do not need to be hospitalised and can be treated at home, you will be contacted by local public health staff. You should follow the instructions below until you are told that you can return to your normal activities.

Separate yourself from other people in your home

As much as possible, you should stay in a room by yourself. It should be well-ventilated (eg, open windows), but you should keep the door closed. Keep your distance from other people in your home. This means eating meals in your room by yourself, limiting your movements in shared spaces and using a separate bathroom if possible. If you can, try to have one person who is in good health looking after you. You should not have any visitors.

Stay home, except to get medical care

You should only leave your home or accommodation to get urgent medical care. Do not go to work, school or public areas. Do not use public transportation, ride-sharing services or taxis. You will need to put off or cancel any non-urgent appointments (eg, going to the dentist, hairdresser, eye appointments etc.) until you are advised that you no longer need to stay in isolation.

Call ahead before visiting your doctor

If you have an urgent medical appointment, call the health care provider and tell them that you have or may have COVID-19. This will help their office take steps to keep other people from getting infected or exposed.

Wear a face mask when you are with other people

You should wear a standard medical/surgical face mask when you will be with other people (eg, sharing a room or vehicle) for more than 15 minutes and before you enter a health care provider’s waiting room (noting as above that you should contact your health care provider before you arrive).

If you are not able to wear a face mask (for example, because you have difficulty breathing), then people who live with you should wear a face mask if they enter your room. The face mask should be changed regularly – at least once every hour and whenever it gets wet or dirty. Refer to the instructions below for putting on and taking off a face mask. Discard face masks in a rubbish bin.

Clean your hands

Wash your hands often and thoroughly with soap and water for at least 20 seconds, making sure you dry them thoroughly. Do not share your towel with anyone else in the household. You can also use hand sanitiser (containing at least 60 percent alcohol) if soap and water are not available and if your hands are not visibly dirty. If using hand sanitiser, cover all surfaces of your hands and rub them together until they feel dry. Avoid touching your eyes, nose and mouth with unwashed hands. The same hand hygiene should apply to all household members.

Cover your coughs and sneezes

Cover your mouth and nose with a tissue, your sleeve or elbow when you cough or sneeze. Throw used tissues in a rubbish bin and immediately wash your hands with soap and water for at least 20 seconds, making sure you dry them thoroughly, or use hand sanitiser.

Avoid sharing personal household items

You should not share dishes, drinking glasses, cups, eating utensils, towels, pillows or other items with other people in your home. After using these items, you should wash them in the dishwasher or washing machine or use soap/detergent and water to wash them thoroughly.

Keep your home or accommodation clean and well-ventilated

Overall, the home or accommodation you’re staying in should be clean and well-ventilated, especially the areas shared with other people. Use household gloves when cleaning. You or your carers should:

  • clean and disinfect frequently touched surfaces, such as bedside tables, bedframes, door handles and other bedroom furniture daily with an antiseptic wipe or regular household disinfectant, including bleach solutions
  • clean and disinfect bathroom and toilet surfaces at least once daily with regular household disinfectant
  • clean the patient’s clothes, bedclothes, bath and hand towels etc. separately from other household items:
    • use regular laundry soap and water or a washing machine with common household detergent (laundry powder or liquid) and dry thoroughly outside or in a dryer
    • do not shake soiled laundry
    • avoid direct contact of the skin and clothes with the dirty items
    • wear gloves when handling dirty linen
    • always clean your hands after handling dirty linen, whether gloves were worn or not.

Seek prompt medical attention if your illness worsens

Seek prompt medical attention if you are feeling worse (eg, shortness of breath or difficulty breathing). Follow the instruction you have received from your public health unit, health care provider or hospital.

Before seeking care, always call your health care provider or ambulance service and tell them that you have or are being investigated for COVID-19. Clean your hands with hand sanitiser and put on a face mask before you enter the facility. These steps will help the health care provider or ambulance service keep other people from getting infected or exposed.

Discontinuing home isolation

You should remain under home isolation until public health staff say that you no longer need to. This will be when the risk of transmission to others is low. Current information on COVID-19 is limited. Some precautions are conservative and are based on general recommendations for other viruses.

How to correctly wear and remove a face mask

If you are unwell or have a job which requires you to be in close contact with people who may have COVID-19, we recommend you use a face mask. It is important that face masks are worn and removed correctly. Masks should fit snugly and fully cover your nose and mouth.

Always wash your hands with soap and water and dry your hands thoroughly or use hand sanitiser before and after fitting your face mask.

How to wear a face mask

  • place over nose, mouth and chin
  • fit flexible nose piece over nose bridge
  • secure on head with ties or elastic
  • adjust to fit – secure on your head, fitting snugly around your face with no gaps
  • avoid touching or adjusting your mask during use.

How to remove a face mask

  • avoid touching the front of the mask
  • if the mask has ties, untie the bottom, then top tie
  • remove from face
  • discard, do not use again
  • wash hands with soap and water and dry hands thoroughly or use hand sanitiser immediately.
  • We are professional solder wire manufacturer in China , Pls feel free contact us.
Industrial News · Unclassified

COVID-19 (novel coronavirus) – face mask and hygiene advice from solder factory

The information on the page was last updated 16 March 2020.

Basic hygiene measures are the most important way to stop the spread of infections, including the 2019 novel coronavirus (COVID-19). Basic hygiene measures include:

hand hygiene – that is, washing hands regularly with soap and water, or cleansing with hand sanitiser
staying at home if you are sick
coughing or sneezing into a tissue or your elbow and then performing hand hygiene
cleaning surfaces regularly.
The use of personal protective equipment (PPE), such as face masks can reduce the spread of infection when used correctly and in the appropriate context. This may be recommended in workplaces where people are more likely to come in contact with the disease.

Use of face masks

For most people in the community, PPE such as face masks are not recommended. However, for people with symptoms of an acute respiratory infection, the WHO recommends that there may be benefict in wearing a face mask to reduce the spread of infection to other people.

How to correctly wear and remove a face mask

If you are unwell or have a job which requires you to be in close contact with people who may have coronavirus, it is recommended you use a face mask. It is important that face masks are worn and removed correctly. Masks should fit snugly and fully cover your nose and mouth.

How to wear a mask:

  • wash hands with soap and water or use hand sanitiser
  • place over nose, mouth and chin
  • fit flexible nose piece over nose bridge
  • secure on head with ties or elastic
  • adjust to fit – secure on your head, fitting snugly around your face with no gaps
  • avoid touching or adjusting your mask during use.

How to remove a mask:

  • wash hands with soap and water or use hand sanitiser
  • avoid touching the front of the mask
  • if the mask has ties, untie the bottom, then top tie
  • remove from face
  • discard, do not use again
  • wash hands with soap and water or use hand sanitiser immediately.

Use of PPE in the workplace

  1. Workplaces where people can maintain more than 2 metres contact distance from people with potential COVID19 symptoms – Facemasks and gloves are not recommended.
    Examples of these workplaces include – education facilities, pharmacies, retail outlets
  2. People who, due to the nature of their job, may be unable to maintain more than 2 metres contact distance from people with potential COVID19 symptoms – facemasks and gloves are recommended when this contact is likely to occur.
    Examples of these workplaces include – Police, prison staff, customs staff

These recommendations are a guide only and workplace settings not listed in the table should consider their ability to maintain the 2 metres rule and use the table to inform their use of PPE. In general, surgical/medical masks prevent the dispersal of droplets by an infected patient and the inhalation of droplets if within 2 metres of a coughing individual.

Hand hygiene and cough / sneeze etiquette (maintain distance, cover coughs and sneezes with disposable tissues and wash hands) will have a bigger impact.

We hope all of us can be well from this case. If you need any more products information,pls feel free contact us.

Production flow chart · Unclassified

Production Flow Chart SMT DIP LCD chart

As we all know the Production Flow Chart is very important for the factory. So we make the three SMT, DIP ,LCD chart for customer reference .If you have any question on SMT , DIP or LCD ,Please feel free contact us .

SMT production flow chart
SMT production flow chart

SMT flow chart need Borad baking ,Loader,Auto printer,Hi-speed mounter,Med-speed mounter,Multi-purpose mounter,N2 reflow ,Unloader,AOI,FQC,Packing, Warehouse.

DIP production flow chart
DIP production flow chart

DIP flow char include Board cutting,Place component,Inserting process,PQC,Wave soldering,Lead cutting,Touch up,PQC,Testing,Packing.

LCD production flow chart
LCD production flow chart

LCD flow chart include Panel assy,Main board assy ,Wire/sealing assy , IPQC ,Cab/stand assy,Bum-in,Function check(1),Function check(2),Final test, Packing, Warehouse

Indium wire · Low temperature solder wire · Solder products · Solder wire · Unclassified

Low-temperature solder wire is often used in electronics assembly, such as these applications

  • Attachment of temperature-sensitive components to printed circuit boards
  • Step soldering, when a secondary, lower temperature reflow process is required after a standard SAC soldering process is completed
  • Eliminating warpage of thinner chips due to high-temperature reflow
  • Low melting or low-Tg flex circuitry which are used in cellphones, smartwatches, and many internet-of-things (IoT) devices
  • Large area array devices – such as BGAs – to avoid head-in-pillow (HIP) and non-wet-open (NWO) failures
  • Durafuse LT
  • Indium Corp has invented a new low-temperature solder paste called Durafuse LT.  This new alloy reflows at 200°C and uses a novel solder alloy process to bring mid-temperature solder properties into the upper edge of the low-temperature space. This provides greater drop shock and thermal cycling performance as compared to the typical BiSnAg alloys currently on the market.
  • Older legacy low-temp options are brittle and tend to crack when stressed, which make them unsuitable for many applications. Durafuse LT is more robust and increases durability in drop shock, not just incrementally, but by a significant measure. In fact, under the right process conditions, Durafuse LT’s performance is comparable to SAC305.
  • Other low-temperature alloys include:
Indalloy #Liquidus
(°C)
Solidus
(°C)
Element
1
%Element
2
%Element
3
%Element
4
%
1E118118In52.0Sn48.0    
1125118In50.0Sn50.0    
71131118Sn52.0In48.0    
281138138Bi58.0Sn42.0    
282140139Bi57.0Sn42.0Ag1.0  
290143143In97.0Ag3.0    
87145118Sn58.0In42.0    
203150125In95.0Bi5.0    
88150150In99.3Ga0.7    
225151143In90.0Sn10.0    
90152152In99.4Ga0.6    
91153153In99.6Ga0.4    
2154149In80.0Pb15.0Ag5.0  
92154154In99.5Ga0.5    
4157157In100.0      
204175165In70.0Pb30.0    
205181173In60.0Pb40.0    
231186174Sn86.5Zn5.5In4.5Bi3.5
227187175Sn77.2In20.0Ag2.8  
226187181Sn83.6In8.8Zn7.6 

Low-Temperature Solder Applications

In addition to soldering, Indium Corp provides low-temperature solutions for thermal management, hermetic sealing, fusible alloys, eye glass lens blocking, and more.

Thermal Management

Alloy systems that are liquid at room temperature have a high degree of thermal conductivity, far superior than ordinary non-metallic liquids. This allows for the use of these materials in specific heat-conducting applications, such as heat dissipation in sensitive components during operation, machining, and/or manufacturing.

Other advantages of these liquid alloy systems are their inherent electrical conductivity. Typical applications for these materials include thermostats, switches, barometers, heat transfer systems, and thermal cooling and heating designs.

Hermetic Sealing

Some sealing operations use pure indium and require no heat at all. The sealing process uses mechanical pressure to create the bond. The softness and malleability of indium, in addition to its ability to retain these characteristics at cryogenic temperatures, allows it to fill in imperfections in mating surfaces to create a hermetic seal.

Fusible Alloys

Low-temperature or fusible alloys are commonly used in a variety of safety devices where they are designed to melt at a peak temperature to initiate a process. Eye glass lens blocking is another application where low-temperature or fusible alloys work well. The lens is held in place using a block of the alloy, which is then easily removed with hot water.

Some common fusible alloys are:

 Indalloy
Property117158160-190217-440255281
PropertyIndalloy 117Indalloy 158Indalloy 160-190Indalloy 217-440Indalloy 255Indalloy 281
Melting Point or Range Deg/F117158160-190217-440255281
Weight lbs/in3.32.339.341.343.380.315
Tensile Strength lbs/in25,4005,9905,40013,0006,4008,000
Brinell Hardness No.129.291910.222
Maximum Load
30 sec lbs/in2
10,0009,00016,0008,00015,000
Safe Load Sustained300300300300500
Conductivity (Electrical)
Compared with Pure Copper
3.34%4.17%4.27%2.57%1.75%5.00%

We offer all kind of solder product , Pls feel free contact us.